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RC-Project-Board/platforms/PP 6502/PP 6502.sch
Tor-Eirik Bakke Lunde a99e4aafa4 Fixed 6502 address calculations
2020-01-23 18:20:43 +01:00

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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
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Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
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$EndComp
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$EndComp
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$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
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
14325 5700 14225 5800
Entry Wire Line
14325 5600 14225 5700
Entry Wire Line
14325 5500 14225 5600
Entry Wire Line
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Entry Wire Line
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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
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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A11
Text Label 14700 3600 2 60 ~ 0
A10
Text Label 14700 3700 2 60 ~ 0
A9
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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
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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
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
14225 3700 14325 3800
Entry Wire Line
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Entry Wire Line
14225 3500 14325 3600
Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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A
Wire Bus Line
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Wire Wire Line
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Wire Bus Line
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Wire Bus Line
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Wire Bus Line
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Wire Wire Line
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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
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Wire Wire Line
14325 5400 14725 5400
Wire Wire Line
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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
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$EndComp
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Wire Wire Line
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Entry Wire Line
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Wire Wire Line
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Entry Wire Line
14325 5000 14225 5100
Wire Wire Line
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Text Label 14700 5000 2 60 ~ 0
~RESET
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Wire Wire Line
14325 5100 14725 5100
Entry Wire Line
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Entry Wire Line
14325 6800 14225 6900
Entry Wire Line
14325 6700 14225 6800
Entry Wire Line
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Entry Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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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
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Entry Wire Line
10500 5300 10400 5400
Text Label 10875 5300 2 60 ~ 0
~NMI
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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
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D3
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D2
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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
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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A15
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A14
Text Label 10875 3300 2 60 ~ 0
A13
Text Label 10875 3400 2 60 ~ 0
A12
Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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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
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A5
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A4
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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
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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$EndComp
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Wire Bus Line
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Wire Bus Line
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Wire Bus Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$EndComp
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Wire Wire Line
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PHI2
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Wire Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Wire Wire Line
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Wire Wire Line
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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
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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
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PHI0
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PHI0
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A3
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A2
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A0
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Text Label 2925 6075 0 60 ~ 0
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Text Label 2925 5975 0 60 ~ 0
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Text Label 2925 5875 0 60 ~ 0
D3
Text Label 2925 5775 0 60 ~ 0
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Text Label 2925 5675 0 60 ~ 0
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Text Label 2925 5575 0 60 ~ 0
D0
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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PHI2
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Wire Wire Line
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1 3325 4975
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$EndComp
Text Label 2925 4975 0 60 ~ 0
~IRQ
Wire Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
2900 5975 2800 6075
Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Text Label 14700 6800 2 60 ~ 0
~IO3
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
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1 5525 4575
1 0 0 -1
$EndComp
$Comp
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$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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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
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