EESchema Schematic File Version 2
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
LIBS:mounting
LIBS:rc1_backplane
LIBS:6522
LIBS:breadboard
LIBS:PP 6502-cache
EELAYER 25 0
EELAYER END
$Descr A3 16535 11693
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Mounting M1
U 1 1 5D63FD8B
P 15525 575
F 0 "M1" H 15525 675 50  0001 C CNN
F 1 "Mounting" H 15525 500 50  0001 C CNN
F 2 "mounting:1pin" H 15525 575 50  0001 C CNN
F 3 "" H 15525 575 50  0001 C CNN
	1    15525 575 
	1    0    0    -1  
$EndComp
$Comp
L Mounting M2
U 1 1 5D63FDB2
P 15650 575
F 0 "M2" H 15650 675 50  0001 C CNN
F 1 "Mounting" H 15650 500 50  0001 C CNN
F 2 "mounting:1pin" H 15650 575 50  0001 C CNN
F 3 "" H 15650 575 50  0001 C CNN
	1    15650 575 
	1    0    0    -1  
$EndComp
$Comp
L Mounting M3
U 1 1 5D63FDD2
P 15775 575
F 0 "M3" H 15775 675 50  0001 C CNN
F 1 "Mounting" H 15775 500 50  0001 C CNN
F 2 "mounting:1pin" H 15775 575 50  0001 C CNN
F 3 "" H 15775 575 50  0001 C CNN
	1    15775 575 
	1    0    0    -1  
$EndComp
$Comp
L Mounting M4
U 1 1 5D63FDF2
P 15900 575
F 0 "M4" H 15900 675 50  0001 C CNN
F 1 "Mounting" H 15900 500 50  0001 C CNN
F 2 "mounting:1pin" H 15900 575 50  0001 C CNN
F 3 "" H 15900 575 50  0001 C CNN
	1    15900 575 
	1    0    0    -1  
$EndComp
Text Notes 12175 10925 0    60   ~ 0
6502 Project Platform Board
Entry Wire Line
	14325 5300 14225 5400
Text Label 14700 5300 2    60   ~ 0
~NMI
Text Label 14700 6400 2    60   ~ 0
D7
Text Label 14700 6300 2    60   ~ 0
D6
Text Label 14700 6200 2    60   ~ 0
D5
Text Label 14700 6100 2    60   ~ 0
D4
Text Label 14700 6000 2    60   ~ 0
D3
Text Label 14700 5900 2    60   ~ 0
D2
Text Label 14700 5800 2    60   ~ 0
D1
Text Label 14700 5700 2    60   ~ 0
D0
Text Label 14700 5600 2    60   ~ 0
SYNC
Text Label 14700 5500 2    60   ~ 0
~RDY
Text Label 14700 5400 2    60   ~ 0
R/~W
Text Label 14700 5200 2    60   ~ 0
~IRQ
Entry Wire Line
	14325 6400 14225 6500
Entry Wire Line
	14325 6300 14225 6400
Entry Wire Line
	14325 6200 14225 6300
Entry Wire Line
	14325 6100 14225 6200
Entry Wire Line
	14325 6000 14225 6100
Entry Wire Line
	14325 5900 14225 6000
Entry Wire Line
	14325 5800 14225 5900
Entry Wire Line
	14325 5700 14225 5800
Entry Wire Line
	14325 5600 14225 5700
Entry Wire Line
	14325 5500 14225 5600
Entry Wire Line
	14325 5400 14225 5500
Entry Wire Line
	14325 5200 14225 5300
Text Label 14700 3100 2    60   ~ 0
A15
Text Label 14700 3200 2    60   ~ 0
A14
Text Label 14700 3300 2    60   ~ 0
A13
Text Label 14700 3400 2    60   ~ 0
A12
Entry Wire Line
	14225 4400 14325 4500
Entry Wire Line
	14225 4300 14325 4400
Entry Wire Line
	14225 4200 14325 4300
Entry Wire Line
	14225 4100 14325 4200
Text Label 14700 3500 2    60   ~ 0
A11
Text Label 14700 3600 2    60   ~ 0
A10
Text Label 14700 3700 2    60   ~ 0
A9
Text Label 14700 3800 2    60   ~ 0
A8
Text Label 14700 3900 2    60   ~ 0
A7
Text Label 14700 4000 2    60   ~ 0
A6
Text Label 14700 4100 2    60   ~ 0
A5
Text Label 14700 4200 2    60   ~ 0
A4
Text Label 14700 4300 2    60   ~ 0
A3
Text Label 14700 4400 2    60   ~ 0
A2
Text Label 14700 4500 2    60   ~ 0
A1
Text Label 14700 4600 2    60   ~ 0
A0
Entry Wire Line
	14225 4500 14325 4600
Entry Wire Line
	14225 4000 14325 4100
Entry Wire Line
	14225 3900 14325 4000
Entry Wire Line
	14225 3800 14325 3900
Entry Wire Line
	14225 3700 14325 3800
Entry Wire Line
	14225 3600 14325 3700
Entry Wire Line
	14225 3500 14325 3600
Entry Wire Line
	14225 3400 14325 3500
Entry Wire Line
	14225 3300 14325 3400
Entry Wire Line
	14225 3200 14325 3300
Entry Wire Line
	14225 3100 14325 3200
Entry Wire Line
	14225 3000 14325 3100
$Comp
L VCC #PWR01
U 1 1 5D63F697
P 14100 4575
F 0 "#PWR01" H 14100 4425 50  0001 C CNN
F 1 "VCC" H 14100 4725 50  0000 C CNN
F 2 "" H 14100 4575 50  0001 C CNN
F 3 "" H 14100 4575 50  0001 C CNN
	1    14100 4575
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR02
U 1 1 5D63F634
P 14025 4775
F 0 "#PWR02" H 14025 4525 50  0001 C CNN
F 1 "GND" H 14025 4625 50  0000 C CNN
F 2 "" H 14025 4775 50  0001 C CNN
F 3 "" H 14025 4775 50  0001 C CNN
	1    14025 4775
	1    0    0    -1  
$EndComp
Text Notes 15400 11075 0    60   ~ 0
A
Wire Bus Line
	750  875  13900 875 
Wire Wire Line
	14725 5300 14325 5300
Wire Bus Line
	14225 3800 13900 3800
Wire Bus Line
	14225 5000 14225 7000
Wire Bus Line
	14225 3000 14225 4500
Wire Wire Line
	14325 6400 14725 6400
Wire Wire Line
	14325 6300 14725 6300
Wire Wire Line
	14325 6200 14725 6200
Wire Wire Line
	14325 6100 14725 6100
Wire Wire Line
	14325 6000 14725 6000
Wire Wire Line
	14325 5900 14725 5900
Wire Wire Line
	14325 5800 14725 5800
Wire Wire Line
	14325 5700 14725 5700
Wire Wire Line
	14325 5600 14725 5600
Wire Wire Line
	14325 5500 14725 5500
Wire Wire Line
	14325 5400 14725 5400
Wire Wire Line
	14325 5200 14725 5200
Wire Wire Line
	14325 4500 14725 4500
Wire Wire Line
	14325 4400 14725 4400
Wire Wire Line
	14325 4300 14725 4300
Wire Wire Line
	14325 4200 14725 4200
Wire Wire Line
	14325 4600 14725 4600
Wire Wire Line
	14325 4100 14725 4100
Wire Wire Line
	14325 4000 14725 4000
Wire Wire Line
	14325 3900 14725 3900
Wire Wire Line
	14325 3800 14725 3800
Wire Wire Line
	14325 3700 14725 3700
Wire Wire Line
	14325 3600 14725 3600
Wire Wire Line
	14325 3500 14725 3500
Wire Wire Line
	14325 3400 14725 3400
Wire Wire Line
	14325 3300 14725 3300
Wire Wire Line
	14325 3200 14725 3200
Wire Wire Line
	14325 3100 14725 3100
Wire Wire Line
	14100 4800 14725 4800
Wire Wire Line
	14100 4575 14100 4800
Wire Wire Line
	14025 4700 14725 4700
$Comp
L RC1_Backplane J1
U 1 1 5DC149FA
P 14925 5000
F 0 "J1" H 14925 7000 50  0000 C CNN
F 1 "Signals" V 15375 4950 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Angled_1x39_Pitch2.54mm" H 14925 5000 50  0001 C CNN
F 3 "" H 14925 5000 50  0001 C CNN
	1    14925 5000
	1    0    0    -1  
$EndComp
Wire Bus Line
	13900 5800 14225 5800
Wire Wire Line
	14025 4700 14025 4775
Entry Wire Line
	14325 4900 14225 5000
Wire Wire Line
	14325 4900 14725 4900
Entry Wire Line
	14325 5000 14225 5100
Wire Wire Line
	14325 5000 14725 5000
Text Label 14700 5000 2    60   ~ 0
~RESET
Entry Wire Line
	14325 5100 14225 5200
Wire Wire Line
	14325 5100 14725 5100
Entry Wire Line
	14325 6900 14225 7000
Entry Wire Line
	14325 6800 14225 6900
Entry Wire Line
	14325 6700 14225 6800
Entry Wire Line
	14325 6600 14225 6700
Entry Wire Line
	14325 6500 14225 6600
Wire Wire Line
	14325 6900 14725 6900
Wire Wire Line
	14325 6800 14725 6800
Wire Wire Line
	14325 6700 14725 6700
Wire Wire Line
	14325 6600 14725 6600
Wire Wire Line
	14325 6500 14725 6500
Text Label 14700 6500 2    60   ~ 0
PIN35
Text Label 14700 6600 2    60   ~ 0
PIN36
Text Label 14700 6700 2    60   ~ 0
PIN37
Text Label 14700 6900 2    60   ~ 0
PIN39
Wire Bus Line
	13900 875  13900 5800
Entry Wire Line
	10500 5300 10400 5400
Text Label 10875 5300 2    60   ~ 0
~NMI
Text Label 10875 6400 2    60   ~ 0
D7
Text Label 10875 6300 2    60   ~ 0
D6
Text Label 10875 6200 2    60   ~ 0
D5
Text Label 10875 6100 2    60   ~ 0
D4
Text Label 10875 6000 2    60   ~ 0
D3
Text Label 10875 5900 2    60   ~ 0
D2
Text Label 10875 5800 2    60   ~ 0
D1
Text Label 10875 5700 2    60   ~ 0
D0
Text Label 10875 5600 2    60   ~ 0
SYNC
Text Label 10875 5500 2    60   ~ 0
~RDY
Text Label 10875 5400 2    60   ~ 0
R/~W
Text Label 10875 5200 2    60   ~ 0
~IRQ
Entry Wire Line
	10500 6400 10400 6500
Entry Wire Line
	10500 6300 10400 6400
Entry Wire Line
	10500 6200 10400 6300
Entry Wire Line
	10500 6100 10400 6200
Entry Wire Line
	10500 6000 10400 6100
Entry Wire Line
	10500 5900 10400 6000
Entry Wire Line
	10500 5800 10400 5900
Entry Wire Line
	10500 5700 10400 5800
Entry Wire Line
	10500 5600 10400 5700
Entry Wire Line
	10500 5500 10400 5600
Entry Wire Line
	10500 5400 10400 5500
Entry Wire Line
	10500 5200 10400 5300
Text Label 10875 3100 2    60   ~ 0
A15
Text Label 10875 3200 2    60   ~ 0
A14
Text Label 10875 3300 2    60   ~ 0
A13
Text Label 10875 3400 2    60   ~ 0
A12
Entry Wire Line
	10400 4400 10500 4500
Entry Wire Line
	10400 4300 10500 4400
Entry Wire Line
	10400 4200 10500 4300
Entry Wire Line
	10400 4100 10500 4200
Text Label 10875 3500 2    60   ~ 0
A11
Text Label 10875 3600 2    60   ~ 0
A10
Text Label 10875 3700 2    60   ~ 0
A9
Text Label 10875 3800 2    60   ~ 0
A8
Text Label 10875 3900 2    60   ~ 0
A7
Text Label 10875 4000 2    60   ~ 0
A6
Text Label 10875 4100 2    60   ~ 0
A5
Text Label 10875 4200 2    60   ~ 0
A4
Text Label 10875 4300 2    60   ~ 0
A3
Text Label 10875 4400 2    60   ~ 0
A2
Text Label 10875 4500 2    60   ~ 0
A1
Text Label 10875 4600 2    60   ~ 0
A0
Entry Wire Line
	10400 4500 10500 4600
Entry Wire Line
	10400 4000 10500 4100
Entry Wire Line
	10400 3900 10500 4000
Entry Wire Line
	10400 3800 10500 3900
Entry Wire Line
	10400 3700 10500 3800
Entry Wire Line
	10400 3600 10500 3700
Entry Wire Line
	10400 3500 10500 3600
Entry Wire Line
	10400 3400 10500 3500
Entry Wire Line
	10400 3300 10500 3400
Entry Wire Line
	10400 3200 10500 3300
Entry Wire Line
	10400 3100 10500 3200
Entry Wire Line
	10400 3000 10500 3100
$Comp
L VCC #PWR03
U 1 1 5DD0D2FE
P 10275 4575
F 0 "#PWR03" H 10275 4425 50  0001 C CNN
F 1 "VCC" H 10275 4725 50  0000 C CNN
F 2 "" H 10275 4575 50  0001 C CNN
F 3 "" H 10275 4575 50  0001 C CNN
	1    10275 4575
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR04
U 1 1 5DD0D304
P 10200 4775
F 0 "#PWR04" H 10200 4525 50  0001 C CNN
F 1 "GND" H 10200 4625 50  0000 C CNN
F 2 "" H 10200 4775 50  0001 C CNN
F 3 "" H 10200 4775 50  0001 C CNN
	1    10200 4775
	1    0    0    -1  
$EndComp
Wire Wire Line
	10900 5300 10500 5300
Wire Bus Line
	10400 3800 10075 3800
Wire Bus Line
	10400 5000 10400 7000
Wire Bus Line
	10400 3000 10400 4500
Wire Wire Line
	10500 6400 10900 6400
Wire Wire Line
	10500 6300 10900 6300
Wire Wire Line
	10500 6200 10900 6200
Wire Wire Line
	10500 6100 10900 6100
Wire Wire Line
	10500 6000 10900 6000
Wire Wire Line
	10500 5900 10900 5900
Wire Wire Line
	10500 5800 10900 5800
Wire Wire Line
	10500 5700 10900 5700
Wire Wire Line
	10500 5600 10900 5600
Wire Wire Line
	10500 5500 10900 5500
Wire Wire Line
	10500 5400 10900 5400
Wire Wire Line
	10500 5200 10900 5200
Wire Wire Line
	10500 4500 10900 4500
Wire Wire Line
	10500 4400 10900 4400
Wire Wire Line
	10500 4300 10900 4300
Wire Wire Line
	10500 4200 10900 4200
Wire Wire Line
	10500 4600 10900 4600
Wire Wire Line
	10500 4100 10900 4100
Wire Wire Line
	10500 4000 10900 4000
Wire Wire Line
	10500 3900 10900 3900
Wire Wire Line
	10500 3800 10900 3800
Wire Wire Line
	10500 3700 10900 3700
Wire Wire Line
	10500 3600 10900 3600
Wire Wire Line
	10500 3500 10900 3500
Wire Wire Line
	10500 3400 10900 3400
Wire Wire Line
	10500 3300 10900 3300
Wire Wire Line
	10500 3200 10900 3200
Wire Wire Line
	10500 3100 10900 3100
Wire Wire Line
	10275 4800 10900 4800
Wire Wire Line
	10275 4575 10275 4800
Wire Wire Line
	10200 4700 10900 4700
$Comp
L RC1_Backplane J3
U 1 1 5DD0D32D
P 11100 5000
F 0 "J3" H 11100 7000 50  0000 C CNN
F 1 "SBC" V 11550 4950 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x39_Pitch2.54mm" H 11100 5000 50  0001 C CNN
F 3 "" H 11100 5000 50  0001 C CNN
	1    11100 5000
	1    0    0    -1  
$EndComp
Wire Bus Line
	10075 5800 10400 5800
Wire Wire Line
	10200 4700 10200 4775
Entry Wire Line
	10500 4900 10400 5000
Wire Wire Line
	10500 4900 10900 4900
Entry Wire Line
	10500 5000 10400 5100
Wire Wire Line
	10500 5000 10900 5000
Text Label 10875 4900 2    60   ~ 0
PHI2
Text Label 10875 5000 2    60   ~ 0
~RESET
Entry Wire Line
	10500 5100 10400 5200
Wire Wire Line
	10500 5100 10900 5100
Entry Wire Line
	10500 6900 10400 7000
Entry Wire Line
	10500 6800 10400 6900
Entry Wire Line
	10500 6700 10400 6800
Entry Wire Line
	10500 6600 10400 6700
Entry Wire Line
	10500 6500 10400 6600
Wire Wire Line
	10500 6900 10900 6900
Wire Wire Line
	10500 6800 10900 6800
Wire Wire Line
	10500 6700 10900 6700
Wire Wire Line
	10500 6600 10900 6600
Wire Wire Line
	10500 6500 10900 6500
Text Label 10875 6500 2    60   ~ 0
PIN35
Text Label 10875 6600 2    60   ~ 0
PIN36
Text Label 10875 6700 2    60   ~ 0
PIN37
Text Label 10875 6800 2    60   ~ 0
~IO3
Text Label 10875 6900 2    60   ~ 0
PIN39
Wire Bus Line
	10075 875  10075 5800
$Comp
L C_Small C1
U 1 1 5DD0E0B6
P 10975 10550
F 0 "C1" H 10985 10620 50  0000 L CNN
F 1 "100nF" H 10985 10470 50  0000 L CNN
F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 10975 10550 50  0001 C CNN
F 3 "" H 10975 10550 50  0001 C CNN
	1    10975 10550
	1    0    0    -1  
$EndComp
$Comp
L C_Small C2
U 1 1 5DD0E10C
P 11250 10550
F 0 "C2" H 11260 10620 50  0000 L CNN
F 1 "100nF" H 11260 10470 50  0000 L CNN
F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 11250 10550 50  0001 C CNN
F 3 "" H 11250 10550 50  0001 C CNN
	1    11250 10550
	1    0    0    -1  
$EndComp
Wire Wire Line
	10975 10300 10975 10450
Wire Wire Line
	10975 10375 11525 10375
Wire Wire Line
	11250 10375 11250 10450
Wire Wire Line
	10975 10650 10975 10725
Wire Wire Line
	10975 10725 11525 10725
Wire Wire Line
	11525 10650 11525 10800
$Comp
L GND #PWR05
U 1 1 5DD0E2DE
P 11525 10800
F 0 "#PWR05" H 11525 10550 50  0001 C CNN
F 1 "GND" H 11525 10650 50  0000 C CNN
F 2 "" H 11525 10800 50  0001 C CNN
F 3 "" H 11525 10800 50  0001 C CNN
	1    11525 10800
	1    0    0    -1  
$EndComp
Connection ~ 11250 10725
$Comp
L VCC #PWR06
U 1 1 5DD0E425
P 10975 10300
F 0 "#PWR06" H 10975 10150 50  0001 C CNN
F 1 "VCC" H 10975 10450 50  0000 C CNN
F 2 "" H 10975 10300 50  0001 C CNN
F 3 "" H 10975 10300 50  0001 C CNN
	1    10975 10300
	1    0    0    -1  
$EndComp
Connection ~ 10975 10375
$Comp
L C_Small C3
U 1 1 5DD0EC50
P 11525 10550
F 0 "C3" H 11535 10620 50  0000 L CNN
F 1 "100nF" H 11535 10470 50  0000 L CNN
F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 11525 10550 50  0001 C CNN
F 3 "" H 11525 10550 50  0001 C CNN
	1    11525 10550
	1    0    0    -1  
$EndComp
Wire Wire Line
	11250 10725 11250 10650
Connection ~ 11525 10725
Wire Wire Line
	11525 10375 11525 10450
Connection ~ 11250 10375
Text Notes 11850 10350 0    60   ~ 0
After building a few things on breadboards with a microcontroller, I wanted to do the\nsame with the computer instead so I created this as an easy work-surface to do those\nkind of things. This platform board has been adapted for use with my 6502 and 68xx-\nbased SBCs.
Text Label 14700 4900 2    60   ~ 0
PHI2
Text Label 14700 5100 2    60   ~ 0
PHI0
Text Label 10875 5100 2    60   ~ 0
PHI0
$Comp
L Breadboard BB1
U 1 1 5DE6F52B
P 6975 5300
F 0 "BB1" H 6975 5775 60  0000 C CNN
F 1 "Breadboard" H 6975 4875 60  0000 C CNN
F 2 "breadboard:RND 255-00005" H 6925 5300 60  0001 C CNN
F 3 "" H 6925 5300 60  0001 C CNN
	1    6975 5300
	1    0    0    -1  
$EndComp
$Comp
L 6522 U2
U 1 1 5DE6FB82
P 4150 5300
F 0 "U2" H 3825 6375 60  0000 C CNN
F 1 "6522" V 4150 5200 60  0000 C CNN
F 2 "Housings_DIP:DIP-40_W15.24mm_Socket_LongPads" H 3650 5500 60  0001 C CNN
F 3 "" H 3650 5500 60  0000 C CNN
	1    4150 5300
	-1   0    0    -1  
$EndComp
$Comp
L VCC #PWR07
U 1 1 5DE70879
P 4150 4025
F 0 "#PWR07" H 4150 3875 50  0001 C CNN
F 1 "VCC" H 4150 4175 50  0000 C CNN
F 2 "" H 4150 4025 50  0001 C CNN
F 3 "" H 4150 4025 50  0001 C CNN
	1    4150 4025
	-1   0    0    -1  
$EndComp
$Comp
L GND #PWR08
U 1 1 5DE70A6F
P 4150 6475
F 0 "#PWR08" H 4150 6225 50  0001 C CNN
F 1 "GND" H 4150 6325 50  0000 C CNN
F 2 "" H 4150 6475 50  0001 C CNN
F 3 "" H 4150 6475 50  0001 C CNN
	1    4150 6475
	-1   0    0    -1  
$EndComp
Text Label 2925 5475 0    60   ~ 0
A3
Text Label 2925 5375 0    60   ~ 0
A2
Text Label 2925 5275 0    60   ~ 0
A1
Text Label 2925 5175 0    60   ~ 0
A0
Wire Wire Line
	2900 5275 3425 5275
Wire Wire Line
	2900 5375 3425 5375
Wire Wire Line
	2900 5475 3425 5475
Wire Wire Line
	2900 5175 3425 5175
Text Label 2925 4775 0    60   ~ 0
~RESET
Text Label 2925 6275 0    60   ~ 0
D7
Text Label 2925 6175 0    60   ~ 0
D6
Text Label 2925 6075 0    60   ~ 0
D5
Text Label 2925 5975 0    60   ~ 0
D4
Text Label 2925 5875 0    60   ~ 0
D3
Text Label 2925 5775 0    60   ~ 0
D2
Text Label 2925 5675 0    60   ~ 0
D1
Text Label 2925 5575 0    60   ~ 0
D0
Wire Wire Line
	2900 6275 3425 6275
Wire Wire Line
	2900 6175 3425 6175
Wire Wire Line
	2900 6075 3425 6075
Wire Wire Line
	2900 5975 3425 5975
Wire Wire Line
	2900 5875 3425 5875
Wire Wire Line
	2900 5775 3425 5775
Wire Wire Line
	2900 5675 3425 5675
Wire Wire Line
	2900 5575 3425 5575
Wire Wire Line
	2900 4775 3425 4775
Text Label 1175 4250 0    60   ~ 0
PHI2
Text Label 2925 4875 0    60   ~ 0
R/~W
Wire Wire Line
	2900 4875 3425 4875
$Comp
L Jumper_NO_Small JP1
U 1 1 5DE720C4
P 3325 4975
F 0 "JP1" H 3225 5025 50  0000 C CNN
F 1 "VIA_IRQ" H 3325 4925 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm" H 3325 4975 50  0001 C CNN
F 3 "" H 3325 4975 50  0001 C CNN
	1    3325 4975
	1    0    0    -1  
$EndComp
Text Label 2925 4975 0    60   ~ 0
~IRQ
Wire Wire Line
	2900 4975 3225 4975
Entry Wire Line
	2900 4775 2800 4875
Entry Wire Line
	2900 4875 2800 4975
Entry Wire Line
	2900 4975 2800 5075
Entry Wire Line
	2900 5175 2800 5275
Entry Wire Line
	2900 5275 2800 5375
Entry Wire Line
	2900 5375 2800 5475
Entry Wire Line
	2900 5475 2800 5575
Entry Wire Line
	2900 5575 2800 5675
Entry Wire Line
	2900 5675 2800 5775
Entry Wire Line
	2900 5775 2800 5875
Entry Wire Line
	2900 5875 2800 5975
Entry Wire Line
	2900 5975 2800 6075
Entry Wire Line
	2900 6075 2800 6175
Entry Wire Line
	2900 6175 2800 6275
Entry Wire Line
	2900 6275 2800 6375
Text Label 14700 6800 2    60   ~ 0
~IO3
Wire Wire Line
	4150 4025 4150 4175
Wire Wire Line
	4150 4100 3350 4100
Wire Wire Line
	3350 4100 3350 4375
Wire Wire Line
	3350 4375 3425 4375
Connection ~ 4150 4100
$Comp
L Conn_01x10 J5
U 1 1 5DE736F3
P 5525 4575
F 0 "J5" H 5525 5075 50  0000 C CNN
F 1 "Port A" H 5525 3975 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x10_Pitch2.54mm" H 5525 4575 50  0001 C CNN
F 3 "" H 5525 4575 50  0001 C CNN
	1    5525 4575
	1    0    0    -1  
$EndComp
$Comp
L Conn_01x10 J6
U 1 1 5DE7382E
P 5525 5975
F 0 "J6" H 5525 6475 50  0000 C CNN
F 1 "Port B" H 5525 5375 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x10_Pitch2.54mm" H 5525 5975 50  0001 C CNN
F 3 "" H 5525 5975 50  0001 C CNN
	1    5525 5975
	1    0    0    -1  
$EndComp
Wire Wire Line
	5250 5275 4875 5275
Wire Wire Line
	5250 5075 5250 5275
Wire Wire Line
	5225 4975 5225 5175
Wire Wire Line
	5225 5175 4875 5175
Wire Wire Line
	5200 5075 4875 5075
Wire Wire Line
	5200 4875 5200 5075
Wire Wire Line
	5175 4975 4875 4975
Wire Wire Line
	5175 4775 5175 4975
Wire Wire Line
	5150 4675 5150 4875
Wire Wire Line
	5150 4875 4875 4875
Wire Wire Line
	5125 4775 4875 4775
Wire Wire Line
	5125 4575 5125 4775
Wire Wire Line
	5100 4675 4875 4675
Wire Wire Line
	5100 4475 5100 4675
Wire Wire Line
	5075 4575 4875 4575
Wire Wire Line
	5075 4375 5075 4575
Wire Wire Line
	5050 4475 4875 4475
Wire Wire Line
	5050 4275 5050 4475
Wire Wire Line
	4875 4375 5025 4375
Wire Wire Line
	5025 4375 5025 4175
Wire Wire Line
	5025 4175 5325 4175
Wire Wire Line
	5325 4275 5050 4275
Wire Wire Line
	5325 4375 5075 4375
Wire Wire Line
	5325 4475 5100 4475
Wire Wire Line
	5325 4575 5125 4575
Wire Wire Line
	5325 4675 5150 4675
Wire Wire Line
	5325 4775 5175 4775
Wire Wire Line
	5325 4875 5200 4875
Wire Wire Line
	5325 4975 5225 4975
Wire Wire Line
	5325 5075 5250 5075
Wire Wire Line
	4875 5375 5250 5375
Wire Wire Line
	5250 5375 5250 5575
Wire Wire Line
	5250 5575 5325 5575
Wire Wire Line
	5325 5675 5225 5675
Wire Wire Line
	5225 5675 5225 5475
Wire Wire Line
	5225 5475 4875 5475
Wire Wire Line
	5325 5775 5200 5775
Wire Wire Line
	5200 5775 5200 5575
Wire Wire Line
	5200 5575 4875 5575
Wire Wire Line
	4875 5675 5175 5675
Wire Wire Line
	5175 5675 5175 5875
Wire Wire Line
	5175 5875 5325 5875
Wire Wire Line
	5325 5975 5150 5975
Wire Wire Line
	5150 5975 5150 5775
Wire Wire Line
	5150 5775 4875 5775
Wire Wire Line
	4875 5875 5125 5875
Wire Wire Line
	5125 5875 5125 6075
Wire Wire Line
	5125 6075 5325 6075
Wire Wire Line
	5325 6175 5100 6175
Wire Wire Line
	5100 6175 5100 5975
Wire Wire Line
	5100 5975 4875 5975
Wire Wire Line
	4875 6075 5075 6075
Wire Wire Line
	5075 6075 5075 6275
Wire Wire Line
	5075 6275 5325 6275
Wire Wire Line
	5325 6375 5050 6375
Wire Wire Line
	5050 6375 5050 6175
Wire Wire Line
	5050 6175 4875 6175
Wire Wire Line
	4875 6275 5025 6275
Wire Wire Line
	5025 6275 5025 6475
Wire Wire Line
	5025 6475 5325 6475
Wire Bus Line
	2800 4875 2800 6375
$Comp
L 74LS138 U1
U 1 1 5DE7616E
P 1925 2650
F 0 "U1" H 1925 2650 50  0000 C CNN
F 1 "74LS138" H 1925 2150 50  0000 C CNN
F 2 "Housings_DIP:DIP-16_W7.62mm_Socket_LongPads" H 1925 2650 50  0001 C CNN
F 3 "" H 1925 2650 50  0001 C CNN
	1    1925 2650
	1    0    0    -1  
$EndComp
Text Label 950  2500 0    60   ~ 0
A15
Text Label 950  2300 0    60   ~ 0
A13
Text Label 950  2400 0    60   ~ 0
A14
$Comp
L GND #PWR09
U 1 1 5DE7616F
P 1250 3075
F 0 "#PWR09" H 1250 2825 50  0001 C CNN
F 1 "GND" H 1250 2925 50  0000 C CNN
F 2 "" H 1250 3075 50  0001 C CNN
F 3 "" H 1250 3075 50  0001 C CNN
	1    1250 3075
	1    0    0    -1  
$EndComp
Text Label 2550 2400 0    60   ~ 0
4K3
Text Label 2550 2500 0    60   ~ 0
4K5
Text Label 2550 2600 0    60   ~ 0
4K7
Entry Wire Line
	825  2200 925  2300
Entry Wire Line
	825  2300 925  2400
Entry Wire Line
	825  2400 925  2500
Text Notes 2800 2400 0    60   ~ 0
$3000
Text Notes 2800 2500 0    60   ~ 0
$5000
Text Notes 2800 2600 0    60   ~ 0
$7000
Text Notes 2800 2700 0    60   ~ 0
$9000
Text Notes 2800 2800 0    60   ~ 0
$B000
Text Notes 2800 2900 0    60   ~ 0
$D000
Text Label 2550 2700 0    60   ~ 0
4K9
Text Label 2550 2800 0    60   ~ 0
4KB
Text Label 2550 2900 0    60   ~ 0
4KD
NoConn ~ 2525 2300
$Comp
L Conn_02x06_Odd_Even J4
U 1 1 5DE76171
P 3425 2600
F 0 "J4" H 3475 2900 50  0000 C CNN
F 1 "ADDRESS" H 3475 2175 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_2x06_Pitch2.54mm" H 3425 2600 50  0001 C CNN
F 3 "" H 3425 2600 50  0001 C CNN
	1    3425 2600
	1    0    0    -1  
$EndComp
Entry Wire Line
	825  2700 925  2800
Wire Wire Line
	925  2500 1325 2500
Wire Wire Line
	925  2300 1325 2300
Wire Wire Line
	925  2400 1325 2400
Wire Wire Line
	925  2800 1325 2800
Wire Wire Line
	1325 2900 1250 2900
Wire Wire Line
	1250 2900 1250 3075
Wire Wire Line
	1250 3000 1325 3000
Connection ~ 1250 3000
Wire Wire Line
	2525 2400 3225 2400
Wire Wire Line
	2525 2500 3225 2500
Wire Wire Line
	2525 2600 3225 2600
Wire Bus Line
	825  2200 825  2700
Wire Wire Line
	2525 2900 3225 2900
Wire Wire Line
	3225 2800 2525 2800
Wire Wire Line
	2525 2700 3225 2700
Wire Wire Line
	3800 2400 3800 2900
Wire Wire Line
	3725 2600 3800 2600
Connection ~ 3800 2600
Wire Wire Line
	3725 2700 3800 2700
Connection ~ 3800 2700
Wire Wire Line
	3725 2800 3800 2800
Connection ~ 3800 2800
Wire Wire Line
	3725 2500 4700 2500
$Comp
L 74LS138 U3
U 1 1 5DE76172
P 5300 2250
F 0 "U3" H 5300 2250 50  0000 C CNN
F 1 "74LS138" H 5300 1750 50  0000 C CNN
F 2 "Housings_DIP:DIP-16_W7.62mm_Socket_LongPads" H 5300 2250 50  0001 C CNN
F 3 "" H 5300 2250 50  0001 C CNN
	1    5300 2250
	1    0    0    -1  
$EndComp
Text Label 950  2800 0    60   ~ 0
A12
Text Label 4325 2000 0    60   ~ 0
A10
Wire Wire Line
	4300 2100 4700 2100
Entry Wire Line
	4200 2000 4300 2100
Wire Wire Line
	4300 2000 4700 2000
Entry Wire Line
	4200 1900 4300 2000
Wire Wire Line
	4300 1900 4700 1900
Entry Wire Line
	4200 1800 4300 1900
Wire Bus Line
	4200 1800 4200 2000
Text Label 4325 1900 0    60   ~ 0
A9
Wire Wire Line
	3725 2400 3800 2400
Connection ~ 3800 2500
Wire Wire Line
	3800 2900 3725 2900
Text Notes 5975 1900 0    60   ~ 0
$x000
Text Label 4325 2100 0    60   ~ 0
A11
Text Notes 5975 2600 0    60   ~ 0
$xE00
Wire Bus Line
	825  2450 750  2450
Wire Bus Line
	4100 875  4100 1900
NoConn ~ 2525 3000
NoConn ~ 5900 2100
NoConn ~ 5900 2000
NoConn ~ 5900 2300
NoConn ~ 5900 2200
NoConn ~ 5900 2500
$Comp
L GND #PWR010
U 1 1 5DE76176
P 4625 2675
F 0 "#PWR010" H 4625 2425 50  0001 C CNN
F 1 "GND" H 4625 2525 50  0000 C CNN
F 2 "" H 4625 2675 50  0001 C CNN
F 3 "" H 4625 2675 50  0001 C CNN
	1    4625 2675
	1    0    0    -1  
$EndComp
Wire Wire Line
	4625 2675 4625 2600
Wire Wire Line
	4625 2600 4700 2600
Text Notes 5975 2100 0    60   ~ 0
$x400
Text Notes 5975 2000 0    60   ~ 0
$x200
Text Notes 5975 2200 0    60   ~ 0
$x600
Text Notes 5975 2300 0    60   ~ 0
$x800
Text Notes 5975 2500 0    60   ~ 0
$xC00
Text Notes 5975 2400 0    60   ~ 0
$xA00
NoConn ~ 5900 2400
Wire Bus Line
	4100 1900 4200 1900
$Comp
L VCC #PWR011
U 1 1 5DE7619F
P 4625 2325
F 0 "#PWR011" H 4625 2175 50  0001 C CNN
F 1 "VCC" H 4625 2475 50  0000 C CNN
F 2 "" H 4625 2325 50  0001 C CNN
F 3 "" H 4625 2325 50  0001 C CNN
	1    4625 2325
	1    0    0    -1  
$EndComp
Wire Wire Line
	4625 2325 4625 2400
Wire Wire Line
	4625 2400 4700 2400
Wire Wire Line
	5900 1900 6500 1900
NoConn ~ 5900 2600
$Comp
L Jumper_NC_Dual JP2
U 1 1 5DE77FE3
P 6500 2225
F 0 "JP2" H 6550 2125 50  0000 L CNN
F 1 "CS_SEL" H 6500 2325 50  0000 C BNN
F 2 "Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm" H 6500 2225 50  0001 C CNN
F 3 "" H 6500 2225 50  0001 C CNN
	1    6500 2225
	0    -1   -1   0   
$EndComp
Text Label 7175 2550 2    60   ~ 0
~IO3
Wire Wire Line
	6500 2475 6500 2550
Wire Wire Line
	6500 2550 7225 2550
Wire Wire Line
	6500 1900 6500 1975
Text GLabel 6675 2225 2    60   Output ~ 0
~6522_CS
Wire Wire Line
	6675 2225 6600 2225
Wire Bus Line
	750  875  750  5500
Entry Wire Line
	7225 2550 7325 2650
Wire Bus Line
	7325 2650 7400 2650
Wire Bus Line
	7400 2650 7400 875 
Wire Bus Line
	750  5500 2800 5500
$Comp
L Conn_01x02 J7
U 1 1 5DE7AFE7
P 7900 4875
F 0 "J7" H 7900 4975 50  0000 C CNN
F 1 "PWR1" H 7900 4675 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm" H 7900 4875 50  0001 C CNN
F 3 "" H 7900 4875 50  0001 C CNN
	1    7900 4875
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR012
U 1 1 5DE7B0A8
P 7625 4800
F 0 "#PWR012" H 7625 4650 50  0001 C CNN
F 1 "VCC" H 7625 4950 50  0000 C CNN
F 2 "" H 7625 4800 50  0001 C CNN
F 3 "" H 7625 4800 50  0001 C CNN
	1    7625 4800
	1    0    0    -1  
$EndComp
Wire Wire Line
	7625 4800 7625 4875
Wire Wire Line
	7625 4875 7700 4875
Wire Wire Line
	7700 4975 7625 4975
Wire Wire Line
	7625 4975 7625 5050
$Comp
L GND #PWR013
U 1 1 5DE7B331
P 7625 5050
F 0 "#PWR013" H 7625 4800 50  0001 C CNN
F 1 "GND" H 7625 4900 50  0000 C CNN
F 2 "" H 7625 5050 50  0001 C CNN
F 3 "" H 7625 5050 50  0001 C CNN
	1    7625 5050
	1    0    0    -1  
$EndComp
$Comp
L Conn_01x02 J8
U 1 1 5DE7B3E2
P 7900 5625
F 0 "J8" H 7900 5725 50  0000 C CNN
F 1 "PWR2" H 7900 5425 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm" H 7900 5625 50  0001 C CNN
F 3 "" H 7900 5625 50  0001 C CNN
	1    7900 5625
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR014
U 1 1 5DE7B3E8
P 7625 5550
F 0 "#PWR014" H 7625 5400 50  0001 C CNN
F 1 "VCC" H 7625 5700 50  0000 C CNN
F 2 "" H 7625 5550 50  0001 C CNN
F 3 "" H 7625 5550 50  0001 C CNN
	1    7625 5550
	1    0    0    -1  
$EndComp
Wire Wire Line
	7625 5550 7625 5625
Wire Wire Line
	7625 5625 7700 5625
Wire Wire Line
	7700 5725 7625 5725
Wire Wire Line
	7625 5725 7625 5800
$Comp
L GND #PWR015
U 1 1 5DE7B3F2
P 7625 5800
F 0 "#PWR015" H 7625 5550 50  0001 C CNN
F 1 "GND" H 7625 5650 50  0000 C CNN
F 2 "" H 7625 5800 50  0001 C CNN
F 3 "" H 7625 5800 50  0001 C CNN
	1    7625 5800
	1    0    0    -1  
$EndComp
Text GLabel 3350 4475 0    60   Input ~ 0
~6522_CS
Wire Wire Line
	3350 4475 3425 4475
Wire Wire Line
	1850 4575 3425 4575
$Comp
L Jumper_NC_Dual JP3
U 1 1 5E02AB75
P 1750 4575
F 0 "JP3" H 1800 4475 50  0000 L CNN
F 1 "VIA_CLK" H 1750 4675 50  0000 C BNN
F 2 "Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm" H 1750 4575 50  0001 C CNN
F 3 "" H 1750 4575 50  0001 C CNN
	1    1750 4575
	0    -1   1    0   
$EndComp
Wire Wire Line
	1750 4250 1750 4325
Wire Wire Line
	1150 4250 1750 4250
Wire Wire Line
	1750 4900 1750 4825
Entry Wire Line
	1150 4250 1050 4350
Wire Wire Line
	1150 4900 1750 4900
Entry Wire Line
	1150 4900 1050 5000
Text Label 1175 4900 0    60   ~ 0
PHI0
Wire Bus Line
	1050 5000 1050 4350
Wire Bus Line
	750  4650 1050 4650
Text Notes 850  4100 0    60   ~ 0
6522 clock selection jumper, solder\na link from 1-2 for most 6502-based\ncomputers. 2-3 for 6800-based CPUs.
Text Notes 6950 2650 0    60   ~ 0
$1700
$EndSCHEMATC