Apple-1-HW/RC6502-Apple-1-Replica
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RC6502-Apple-1-Replica/Abandoned/RC6502 Serial Adapter/RC6502 Serial Adapter.sch
Tor-Eirik Bakke Lunde 6c09ac5565 Serial adapter abandoned (moved to RC-ONE and completed)
2020-01-25 16:16:02 +01:00

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EESchema Schematic File Version 2
LIBS:power
LIBS:device
LIBS:switches
LIBS:relays
LIBS:motors
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:r6551
LIBS:rc6502_backplane
LIBS:RC6502 Serial Adapter-cache
EELAYER 25 0
EELAYER END
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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
8350 2875 8350 2800
Connection ~ 8450 2875
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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Entry Wire Line
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Wire Wire Line
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NoConn ~ 10425 6050
NoConn ~ 10425 4950
NoConn ~ 10425 5050
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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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1 9875 4050
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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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NoConn ~ 10425 3350
NoConn ~ 10425 3450
NoConn ~ 10425 3550
NoConn ~ 10425 3650
NoConn ~ 10425 3750
NoConn ~ 10425 3850
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-1 0 0 1
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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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NoConn ~ 6875 1600
NoConn ~ 6975 1600
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1 0 0 -1
$EndComp
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Connection ~ 3650 5350
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Wire Notes Line
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Wire Notes Line
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Wire Notes Line
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F 2 "" H 1625 1325 50 0001 C CNN
F 3 "" H 1625 1325 50 0001 C CNN
1 1625 1325
1 0 0 -1
$EndComp
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Entry Wire Line
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Wire Wire Line
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Entry Wire Line
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Wire Wire Line
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Entry Wire Line
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Wire Wire Line
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Wire Wire Line
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Text Label 3325 7050 2 60 ~ 0
RxD
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TxD
Wire Wire Line
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Wire Wire Line
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Text Label 2025 1975 1 60 ~ 0
RxD
Text Label 2225 1975 1 60 ~ 0
TxD
Text Label 3325 6950 2 60 ~ 0
~CTS
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Wire Wire Line
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Entry Wire Line
3375 6850 3475 6950
Entry Wire Line
3375 6950 3475 7050
Entry Wire Line
3375 7050 3475 7150
Entry Wire Line
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Wire Bus Line
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$EndComp
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$EndComp
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$Comp
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F 3 "" H 2300 4825 50 0001 C CNN
1 2300 4825
1 0 0 -1
$EndComp
$Comp
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F 3 "" H 2300 4225 50 0001 C CNN
1 2300 4225
1 0 0 -1
$EndComp
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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 Notes Line
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Wire Notes Line
2725 5050 2725 4000
Wire Notes Line
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Wire Notes Line
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Wire Notes Line
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Wire Notes Line
4200 5850 4200 5050
Wire Notes Line
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Text Notes 3325 5025 0 60 ~ 0
6551 Crystal clock
Text Notes 2000 5025 1 60 ~ 0
6551 Oscillator clock
Wire Bus Line
750 2125 2125 2125
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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F 1 "MAX232" H 3850 3700 50 0000 R CNN
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1 0 0 -1
$EndComp
Wire Bus Line
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$Comp
L CP_Small C4
U 1 1 5C404A81
P 5175 2075
F 0 "C4" H 5185 2145 50 0000 L CNN
F 1 "1uF" H 5185 1995 50 0000 L CNN
F 2 "" H 5175 2075 50 0001 C CNN
F 3 "" H 5175 2075 50 0001 C CNN
1 5175 2075
1 0 0 -1
$EndComp
Wire Wire Line
4750 2250 5175 2250
Wire Wire Line
5175 2250 5175 2175
$Comp
L VCC #PWR014
U 1 1 5C405298
P 3950 1450
F 0 "#PWR014" H 3950 1300 50 0001 C CNN
F 1 "VCC" H 3950 1600 50 0000 C CNN
F 2 "" H 3950 1450 50 0001 C CNN
F 3 "" H 3950 1450 50 0001 C CNN
1 3950 1450
1 0 0 -1
$EndComp
$Comp
L CP_Small C3
U 1 1 5C40565F
P 4900 1900
F 0 "C3" H 4910 1970 50 0000 L CNN
F 1 "1uF" H 4910 1820 50 0000 L CNN
F 2 "" H 4900 1900 50 0001 C CNN
F 3 "" H 4900 1900 50 0001 C CNN
1 4900 1900
1 0 0 -1
$EndComp
Wire Wire Line
4900 1750 4900 1800
Wire Wire Line
4750 1750 4900 1750
Wire Wire Line
4900 2050 4900 2000
Wire Wire Line
4750 2050 4900 2050
$Comp
L CP_Small C1
U 1 1 5C405A22
P 3000 1900
F 0 "C1" H 3010 1970 50 0000 L CNN
F 1 "1uF" H 3010 1820 50 0000 L CNN
F 2 "" H 3000 1900 50 0001 C CNN
F 3 "" H 3000 1900 50 0001 C CNN
1 3000 1900
1 0 0 -1
$EndComp
Wire Wire Line
3000 1800 3000 1750
Wire Wire Line
3000 1750 3150 1750
Wire Wire Line
3000 2000 3000 2050
Wire Wire Line
3000 2050 3150 2050
$Comp
L GND #PWR015
U 1 1 5C40672F
P 3950 3850
F 0 "#PWR015" H 3950 3600 50 0001 C CNN
F 1 "GND" H 3950 3700 50 0000 C CNN
F 2 "" H 3950 3850 50 0001 C CNN
F 3 "" H 3950 3850 50 0001 C CNN
1 3950 3850
1 0 0 -1
$EndComp
$Comp
L VCC #PWR016
U 1 1 5C40694A
P 5175 1975
F 0 "#PWR016" H 5175 1825 50 0001 C CNN
F 1 "VCC" H 5175 2125 50 0000 C CNN
F 2 "" H 5175 1975 50 0001 C CNN
F 3 "" H 5175 1975 50 0001 C CNN
1 5175 1975
1 0 0 -1
$EndComp
Wire Wire Line
4750 2550 5175 2550
Wire Wire Line
5175 2550 5175 2625
$Comp
L CP_Small C5
U 1 1 5C406CB7
P 5175 2725
F 0 "C5" H 5185 2795 50 0000 L CNN
F 1 "1uF" H 5185 2645 50 0000 L CNN
F 2 "" H 5175 2725 50 0001 C CNN
F 3 "" H 5175 2725 50 0001 C CNN
1 5175 2725
1 0 0 -1
$EndComp
$Comp
L GND #PWR017
U 1 1 5C406D96
P 5175 2900
F 0 "#PWR017" H 5175 2650 50 0001 C CNN
F 1 "GND" H 5175 2750 50 0000 C CNN
F 2 "" H 5175 2900 50 0001 C CNN
F 3 "" H 5175 2900 50 0001 C CNN
1 5175 2900
1 0 0 -1
$EndComp
Text Label 1550 3150 0 60 ~ 0
RxD
Wire Wire Line
1475 3350 3150 3350
Text Label 1550 2750 0 60 ~ 0
TxD
Wire Wire Line
1475 2950 3150 2950
$Comp
L DB9_Female J2
U 1 1 5C40822D
P 5500 4125
F 0 "J2" H 5500 4675 50 0000 C CNN
F 1 "RS232" H 5500 3550 50 0000 C CNN
F 2 "" H 5500 4125 50 0001 C CNN
F 3 "" H 5500 4125 50 0001 C CNN
1 5500 4125
1 0 0 -1
$EndComp
Wire Wire Line
5200 4325 5125 4325
Wire Wire Line
5125 4325 5125 3825
Wire Wire Line
5125 3825 5200 3825
Wire Wire Line
4750 3350 4975 3350
Wire Wire Line
4975 3350 4975 3925
Wire Wire Line
4975 3925 5200 3925
Wire Wire Line
4750 2950 4900 2950
Wire Wire Line
4900 2950 4900 4125
Wire Wire Line
4900 4125 5200 4125
Wire Wire Line
4825 4025 5200 4025
Wire Wire Line
4825 4025 4825 2750
Wire Wire Line
4825 2750 4750 2750
NoConn ~ 5200 3725
NoConn ~ 5200 4225
NoConn ~ 5200 4425
NoConn ~ 4750 3150
Wire Wire Line
1475 2750 3150 2750
Text Label 4850 7475 1 60 ~ 0
~6551_IRQ
Entry Wire Line
750 6950 850 7050
Wire Wire Line
850 6950 1625 6950
Entry Wire Line
1375 2650 1475 2750
Entry Wire Line
1375 2850 1475 2950
Entry Wire Line
1375 3250 1475 3350
Wire Bus Line
1375 2125 1375 3250
$Comp
L R R1
U 1 1 5C40D9A4
P 1825 1400
F 0 "R1" V 1905 1400 50 0000 C CNN
F 1 "2k2" V 1825 1400 50 0000 C CNN
F 2 "" V 1755 1400 50 0001 C CNN
F 3 "" H 1825 1400 50 0001 C CNN
1 1825 1400
1 0 0 -1
$EndComp
$Comp
L R R3
U 1 1 5C40DA16
P 2025 1400
F 0 "R3" V 2105 1400 50 0000 C CNN
F 1 "2k2" V 2025 1400 50 0000 C CNN
F 2 "" V 1955 1400 50 0001 C CNN
F 3 "" H 2025 1400 50 0001 C CNN
1 2025 1400
1 0 0 -1
$EndComp
$Comp
L R R4
U 1 1 5C40DA81
P 2225 1400
F 0 "R4" V 2305 1400 50 0000 C CNN
F 1 "2k2" V 2225 1400 50 0000 C CNN
F 2 "" V 2155 1400 50 0001 C CNN
F 3 "" H 2225 1400 50 0001 C CNN
1 2225 1400
1 0 0 -1
$EndComp
Wire Wire Line
5175 2900 5175 2825
Wire Wire Line
5200 4525 5125 4525
Wire Wire Line
5125 4525 5125 4600
$Comp
L GND #PWR018
U 1 1 5C40E9FD
P 5125 4600
F 0 "#PWR018" H 5125 4350 50 0001 C CNN
F 1 "GND" H 5125 4450 50 0000 C CNN
F 2 "" H 5125 4600 50 0001 C CNN
F 3 "" H 5125 4600 50 0001 C CNN
1 5125 4600
1 0 0 -1
$EndComp
Text Notes 7000 6750 0 60 ~ 0
Adds a dedicated port supporting regular RS232 and TTL-level serial communications\nbased on R6551 IC.
Text Label 1550 3350 0 60 ~ 0
~CTS
Text Label 1550 2950 0 60 ~ 0
~RTS
Wire Wire Line
1475 3150 3150 3150
Entry Wire Line
1375 3050 1475 3150
NoConn ~ 3025 6450
$Comp
L GND #PWR019
U 1 1 5C5F2AC6
P 3600 6725
F 0 "#PWR019" H 3600 6475 50 0001 C CNN
F 1 "GND" H 3600 6575 50 0000 C CNN
F 2 "" H 3600 6725 50 0001 C CNN
F 3 "" H 3600 6725 50 0001 C CNN
1 3600 6725
1 0 0 -1
$EndComp
Wire Wire Line
3025 6650 3600 6650
Wire Wire Line
3600 6550 3600 6725
Connection ~ 3600 6650
Wire Wire Line
10425 6150 10075 6150
Entry Wire Line
9975 6050 10075 6150
Wire Wire Line
10425 4650 10075 4650
Entry Wire Line
9975 4550 10075 4650
Text Label 10375 4650 2 60 ~ 0
~IRQ
Text Label 10375 6150 2 60 ~ 0
~NMI
$Comp
L Conn_02x02_Odd_Even J6
U 1 1 5C5F6CE0
P 5125 6900
F 0 "J6" H 5175 7000 50 0000 C CNN
F 1 "IRQ_SEL" H 5175 6700 50 0000 C CNN
F 2 "" H 5125 6900 50 0001 C CNN
F 3 "" H 5125 6900 50 0001 C CNN
1 5125 6900
1 0 0 -1
$EndComp
Entry Wire Line
4750 7600 4850 7500
Text Label 5450 7000 0 60 ~ 0
~NMI
Wire Wire Line
5775 7000 5425 7000
Entry Wire Line
5775 7000 5875 7100
Text Label 5450 6900 0 60 ~ 0
~IRQ
Wire Wire Line
5775 6900 5425 6900
Entry Wire Line
5775 6900 5875 7000
Wire Wire Line
4850 7000 4925 7000
Wire Wire Line
4850 6900 4925 6900
Wire Wire Line
4850 6900 4850 7500
Connection ~ 4850 7000
Text Label 1575 6950 2 60 ~ 0
~6551_IRQ
Wire Notes Line
2875 1200 2875 4150
Wire Notes Line
2875 4150 4725 4150
Wire Notes Line
4725 4150 4725 5000
Wire Notes Line
4725 5000 5775 5000
Wire Notes Line
5775 5000 5775 1200
Wire Notes Line
5775 1200 2875 1200
$EndSCHEMATC
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