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:rca LIBS:RC6502 Video Adapter-cache EELAYER 25 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 1 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr Text GLabel 10600 3800 0 60 Input ~ 0 GND Text GLabel 10600 3900 0 60 Output ~ 0 VCC NoConn ~ 10600 5800 NoConn ~ 10600 4300 NoConn ~ 10600 4700 Text Notes 8500 7500 2 60 ~ 0 RC6502 Video Adapter Text Notes 10625 7650 2 60 ~ 0 B $Comp L CONN_01X39 J1 U 1 1 5938011B P 10800 4100 F 0 "J1" H 10800 6100 50 0000 C CNN F 1 "CONN_01X39" V 10900 4100 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Angled_1x39_Pitch2.54mm" H 10800 4100 50 0001 C CNN F 3 "" H 10800 4100 50 0001 C CNN 1 10800 4100 1 0 0 -1 $EndComp NoConn ~ 10600 5900 NoConn ~ 10600 4400 NoConn ~ 10600 4600 NoConn ~ 10600 6000 NoConn ~ 10600 4200 NoConn ~ 10600 3500 NoConn ~ 10600 3400 NoConn ~ 10600 3200 NoConn ~ 10600 3100 NoConn ~ 10600 3000 NoConn ~ 10600 2900 NoConn ~ 10600 2800 NoConn ~ 10600 2700 NoConn ~ 10600 2600 Text GLabel 1525 2050 0 60 Output ~ 0 OUT_D0 Text GLabel 1525 1950 0 60 Output ~ 0 OUT_D1 Text GLabel 1525 1850 0 60 Output ~ 0 OUT_D2 Text GLabel 1525 1750 0 60 Output ~ 0 OUT_D3 Text GLabel 1525 1650 0 60 Output ~ 0 OUT_D4 Text GLabel 1525 1550 0 60 Output ~ 0 OUT_D5 Text GLabel 1525 1450 0 60 Output ~ 0 OUT_D6 Text GLabel 3300 6700 2 60 Output ~ 0 OUT_RDA $Comp L CONN_02X20 J2 U 1 1 59380E36 P 1775 2200 F 0 "J2" H 1775 3250 50 0000 C CNN F 1 "Peripheral Bus" V 1775 2200 50 0000 C CNN F 2 "Connectors:IDC_Header_Straight_40pins" H 1775 1250 50 0001 C CNN F 3 "" H 1775 1250 50 0001 C CNN 1 1775 2200 1 0 0 -1 $EndComp Text GLabel 2600 3650 3 60 Output ~ 0 GND NoConn ~ 10600 4800 NoConn ~ 10600 4900 NoConn ~ 10600 5000 NoConn ~ 10600 5100 NoConn ~ 10600 5200 NoConn ~ 10600 5300 NoConn ~ 10600 5400 NoConn ~ 10600 5500 NoConn ~ 10600 2200 NoConn ~ 10600 2300 NoConn ~ 10600 2400 NoConn ~ 10600 2500 NoConn ~ 10600 3600 NoConn ~ 10600 3700 NoConn ~ 10600 4000 NoConn ~ 10600 4100 NoConn ~ 1525 3150 NoConn ~ 1525 2850 NoConn ~ 1525 2750 NoConn ~ 1525 2650 NoConn ~ 1525 2550 NoConn ~ 1525 2450 NoConn ~ 1525 2350 NoConn ~ 2025 3050 NoConn ~ 1525 1250 NoConn ~ 1525 2250 NoConn ~ 2025 2550 NoConn ~ 2025 2350 NoConn ~ 2025 2150 NoConn ~ 2025 2050 NoConn ~ 2025 1950 NoConn ~ 2025 1850 NoConn ~ 2025 1750 NoConn ~ 2025 1650 NoConn ~ 2025 1550 NoConn ~ 2025 1450 NoConn ~ 2025 1350 Text GLabel 1525 1350 0 60 Output ~ 0 OUT_DA Text GLabel 2025 2950 2 60 Output ~ 0 P_RESET Text GLabel 2025 2850 2 60 Input ~ 0 OUT_RDA $Comp L ATMEGA328P-PU U1 U 1 1 5939AF11 P 2300 6000 F 0 "U1" H 1550 7250 50 0000 L BNN F 1 "ATMEGA328P-PU" H 2700 4600 50 0000 L BNN F 2 "Housings_DIP:DIP-28_W7.62mm_Socket" H 2300 6000 50 0001 C CIN F 3 "" H 2300 6000 50 0001 C CNN 1 2300 6000 1 0 0 -1 $EndComp $Comp L Crystal Y1 U 1 1 5939BD6D P 7025 5600 F 0 "Y1" H 7025 5750 50 0000 C CNN F 1 "16 Mhz" H 7025 5450 50 0000 C CNN F 2 "Crystals:Crystal_HC49-4H_Vertical" H 7025 5600 50 0001 C CNN F 3 "" H 7025 5600 50 0001 C CNN 1 7025 5600 0 1 1 0 $EndComp $Comp L C_Small C4 U 1 1 5939BE54 P 7225 5950 F 0 "C4" H 7235 6020 50 0000 L CNN F 1 "22pF" H 7235 5870 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 7225 5950 50 0001 C CNN F 3 "" H 7225 5950 50 0001 C CNN 1 7225 5950 0 1 1 0 $EndComp $Comp L C_Small C3 U 1 1 5939BEA4 P 7225 5250 F 0 "C3" H 7235 5320 50 0000 L CNN F 1 "22pF" H 7235 5170 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 7225 5250 50 0001 C CNN F 3 "" H 7225 5250 50 0001 C CNN 1 7225 5250 0 1 1 0 $EndComp Text GLabel 7425 6200 3 60 Output ~ 0 GND $Comp L C_Small C1 U 1 1 5939E123 P 1050 6800 F 0 "C1" H 1060 6870 50 0000 L CNN F 1 "100nF" H 1060 6720 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 1050 6800 50 0001 C CNN F 3 "" H 1050 6800 50 0001 C CNN 1 1050 6800 -1 0 0 1 $EndComp Text GLabel 1050 7350 3 60 Output ~ 0 GND Text GLabel 1050 4650 1 60 Input ~ 0 VCC Text GLabel 3300 6800 2 60 Input ~ 0 OUT_DA Text GLabel 3300 5500 2 60 Output ~ 0 XTAL1 Text GLabel 3300 5600 2 60 Input ~ 0 XTAL2 Text GLabel 6425 5550 0 60 Input ~ 0 XTAL1 Text GLabel 6425 5650 0 60 Output ~ 0 XTAL2 Text GLabel 3925 6250 1 60 Input ~ 0 RESET $Comp L CONN_01X06 J4 U 1 1 593AA693 P 4800 7050 F 0 "J4" H 4800 7400 50 0000 C CNN F 1 "FTDI" V 4900 7050 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Angled_1x06_Pitch2.54mm" H 4800 7050 50 0001 C CNN F 3 "" H 4800 7050 50 0001 C CNN 1 4800 7050 0 1 1 0 $EndComp $Comp L R R4 U 1 1 593AAA90 P 4050 6500 F 0 "R4" V 3950 6500 50 0000 C CNN F 1 "10k" V 4050 6500 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 3980 6500 50 0001 C CNN F 3 "" H 4050 6500 50 0001 C CNN 1 4050 6500 0 1 1 0 $EndComp Text GLabel 5350 7000 3 60 Output ~ 0 GND Text GLabel 4850 6250 1 60 Output ~ 0 VCC $Comp L C_Small C2 U 1 1 593AC0A1 P 4350 6350 F 0 "C2" H 4360 6420 50 0000 L CNN F 1 "100nF" V 4250 6250 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 4350 6350 50 0001 C CNN F 3 "" H 4350 6350 50 0001 C CNN 1 4350 6350 0 1 1 0 $EndComp $Comp L CONN_02X03 J5 U 1 1 593B2B97 P 5100 5850 F 0 "J5" H 5100 6050 50 0000 C CNN F 1 "ICSP" H 5100 5650 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_2x03_Pitch2.54mm" H 5100 4650 50 0001 C CNN F 3 "" H 5100 4650 50 0001 C CNN 1 5100 5850 1 0 0 -1 $EndComp Text GLabel 5350 5550 1 60 Output ~ 0 VCC Text GLabel 7250 1750 0 60 Input ~ 0 OUT_D0 Text GLabel 7250 1850 0 60 Input ~ 0 OUT_D1 Text GLabel 7250 1950 0 60 Input ~ 0 OUT_D2 Text GLabel 7250 2050 0 60 Input ~ 0 OUT_D3 Text GLabel 7250 2150 0 60 Input ~ 0 OUT_D4 Text GLabel 7250 2250 0 60 Input ~ 0 OUT_D5 Text GLabel 7250 2350 0 60 Input ~ 0 OUT_D6 NoConn ~ 3300 4900 NoConn ~ 3300 6250 NoConn ~ 1400 5500 Text GLabel 3300 5000 2 60 Output ~ 0 RCA_SYNC Text GLabel 3300 7200 2 60 Output ~ 0 RCA_VIDEO $Comp L Jumper_NO_Small JP1 U 1 1 593C2A0A P 9575 5225 F 0 "JP1" H 9575 5305 50 0000 C CNN F 1 "PullDown" H 9585 5165 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm" H 9575 5225 50 0001 C CNN F 3 "" H 9575 5225 50 0001 C CNN 1 9575 5225 0 -1 -1 0 $EndComp $Comp L R R1 U 1 1 593C2BF9 P 9125 4625 F 0 "R1" V 9205 4625 50 0000 C CNN F 1 "1k" V 9125 4625 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 9055 4625 50 0001 C CNN F 3 "" H 9125 4625 50 0001 C CNN 1 9125 4625 0 1 1 0 $EndComp $Comp L R R2 U 1 1 593C2C43 P 9125 5025 F 0 "R2" V 9205 5025 50 0000 C CNN F 1 "330" V 9125 5025 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 9055 5025 50 0001 C CNN F 3 "" H 9125 5025 50 0001 C CNN 1 9125 5025 0 1 1 0 $EndComp $Comp L D D1 U 1 1 593C3A9B P 8575 4625 F 0 "D1" H 8575 4725 50 0000 C CNN F 1 "1N4848" H 8575 4525 50 0000 C CNN F 2 "Diodes_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 8575 4625 50 0001 C CNN F 3 "" H 8575 4625 50 0001 C CNN 1 8575 4625 -1 0 0 1 $EndComp $Comp L D D2 U 1 1 593C3C52 P 8575 5025 F 0 "D2" H 8575 5125 50 0000 C CNN F 1 "1N4848" H 8575 4925 50 0000 C CNN F 2 "Diodes_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 8575 5025 50 0001 C CNN F 3 "" H 8575 5025 50 0001 C CNN 1 8575 5025 -1 0 0 1 $EndComp Text GLabel 8225 4625 0 60 Input ~ 0 RCA_SYNC Text GLabel 8225 5025 0 60 Input ~ 0 RCA_VIDEO $Comp L R R3 U 1 1 593C6F39 P 9575 5575 F 0 "R3" V 9655 5575 50 0000 C CNN F 1 "75" V 9575 5575 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 9505 5575 50 0001 C CNN F 3 "" H 9575 5575 50 0001 C CNN 1 9575 5575 -1 0 0 1 $EndComp Text GLabel 9575 5975 3 60 Output ~ 0 GND Text GLabel 10600 5600 0 60 Output ~ 0 TX $Comp L Jumper_NO_Small JP2 U 1 1 593CEF5C P 4850 6650 F 0 "JP2" H 4850 6700 50 0000 C CNN F 1 "Power" H 4850 6600 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Angled_1x02_Pitch2.54mm" H 4850 6650 50 0001 C CNN F 3 "" H 4850 6650 50 0001 C CNN 1 4850 6650 0 1 1 0 $EndComp Text GLabel 3800 6275 1 60 Input ~ 0 TX Wire Wire Line 6625 5250 7125 5250 Wire Wire Line 6625 5950 7125 5950 Wire Wire Line 7425 5950 7325 5950 Wire Wire Line 7425 5250 7425 6200 Wire Wire Line 7425 5250 7325 5250 Wire Wire Line 7025 5450 7025 5250 Connection ~ 7025 5250 Wire Wire Line 7025 5750 7025 5950 Connection ~ 7025 5950 Wire Wire Line 6625 5650 6625 5950 Wire Wire Line 6625 5550 6625 5250 Connection ~ 7425 5950 Wire Wire Line 1050 6900 1050 7350 Wire Wire Line 1050 7200 1400 7200 Wire Wire Line 1400 7100 1050 7100 Connection ~ 1050 7100 Connection ~ 1050 7200 Wire Wire Line 1050 4650 1050 6700 Wire Wire Line 1400 4900 1050 4900 Connection ~ 1050 4900 Wire Wire Line 1050 5200 1400 5200 Connection ~ 1050 5200 Wire Wire Line 6625 5550 6425 5550 Wire Wire Line 6625 5650 6425 5650 Wire Wire Line 3300 6600 4650 6600 Wire Wire Line 3300 6500 3900 6500 Wire Wire Line 4200 6500 4750 6500 Wire Wire Line 3300 6350 4250 6350 Wire Wire Line 4550 6350 4550 6850 Wire Wire Line 4650 6600 4650 6850 Wire Wire Line 4750 6500 4750 6850 Wire Wire Line 5350 5950 5350 7000 Wire Wire Line 4550 6350 4450 6350 Wire Wire Line 5050 6850 5350 6850 Connection ~ 5350 6850 Wire Wire Line 4950 6850 4950 6750 Wire Wire Line 4950 6750 5350 6750 Wire Wire Line 4850 6850 4850 6750 Wire Wire Line 4050 5950 4850 5950 Wire Wire Line 4050 5950 4050 6350 Connection ~ 4050 6350 Wire Wire Line 4050 5850 4850 5850 Wire Wire Line 4050 5850 4050 5400 Wire Wire Line 3300 5400 4200 5400 Wire Wire Line 4150 5750 4850 5750 Wire Wire Line 5350 5850 5500 5850 Wire Wire Line 5500 5850 5500 5200 Wire Wire Line 3300 5200 5650 5200 Wire Wire Line 5350 5550 5350 5750 Connection ~ 5350 6750 Wire Wire Line 8725 4625 8975 4625 Wire Wire Line 8725 5025 8975 5025 Wire Wire Line 8225 4625 8425 4625 Wire Wire Line 8225 5025 8425 5025 Wire Wire Line 9275 4625 9575 4625 Wire Wire Line 9575 4625 9575 5125 Wire Wire Line 9575 4825 9875 4825 Wire Wire Line 9575 5025 9275 5025 Connection ~ 9575 4825 Connection ~ 9575 5025 Wire Wire Line 9575 5325 9575 5425 Wire Wire Line 9575 5725 9575 5975 Wire Wire Line 10025 5025 10025 5825 Wire Wire Line 10025 5825 9575 5825 Connection ~ 9575 5825 Wire Wire Line 4850 6250 4850 6550 Text GLabel 10600 5700 0 60 Input ~ 0 RX NoConn ~ 1525 3050 NoConn ~ 1525 2950 Wire Wire Line 2025 1250 2600 1250 Wire Wire Line 2600 1250 2600 3650 Wire Wire Line 2025 2250 2600 2250 Connection ~ 2600 2250 Wire Wire Line 2025 2450 2600 2450 Connection ~ 2600 2450 Wire Wire Line 2025 2650 2600 2650 Connection ~ 2600 2650 Wire Wire Line 2025 2750 2600 2750 Connection ~ 2600 2750 Wire Wire Line 2025 3150 2600 3150 Connection ~ 2600 3150 Wire Wire Line 2600 3450 1050 3450 Connection ~ 2600 3450 Wire Wire Line 1050 3450 1050 2150 Wire Wire Line 1050 2150 1525 2150 $Comp L RCA_PLUG J3 U 1 1 593A2D19 P 10025 4825 F 0 "J3" H 10035 4945 50 0000 C CNN F 1 "Video" V 10140 4825 50 0000 C CNN F 2 "rca:rca_yellow" H 10025 4825 50 0001 C CNN F 3 "" H 10025 4825 50 0001 C CNN 1 10025 4825 1 0 0 -1 $EndComp Wire Wire Line 4150 5300 4150 5750 Wire Wire Line 3300 5300 4475 5300 $Comp L MCP23S17 U2 U 1 1 593D3FAB P 5975 2550 F 0 "U2" H 5875 3575 50 0000 R CNN F 1 "MCP23S17" H 5875 3500 50 0000 R CNN F 2 "Housings_DIP:DIP-28_W7.62mm_Socket" H 6025 1600 50 0001 L CNN F 3 "" H 6225 3550 50 0001 C CNN 1 5975 2550 1 0 0 -1 $EndComp $Comp L MCP23S17 U3 U 1 1 593D4204 P 7750 2550 F 0 "U3" H 7650 3575 50 0000 R CNN F 1 "MCP23S17" H 7650 3500 50 0000 R CNN F 2 "Housings_DIP:DIP-28_W7.62mm_Socket" H 7800 1600 50 0001 L CNN F 3 "" H 8000 3550 50 0001 C CNN 1 7750 2550 1 0 0 -1 $EndComp Text GLabel 3300 5100 2 60 Output ~ 0 SS Text GLabel 5650 5200 2 60 Output ~ 0 MOSI Text GLabel 4475 5300 2 60 Input ~ 0 MISO Text GLabel 4200 5400 2 60 Output ~ 0 SCK Connection ~ 4050 5400 Connection ~ 4150 5300 Connection ~ 5500 5200 $Comp L CONN_02X20 J6 U 1 1 593D5AF3 P 4050 2500 F 0 "J6" H 4050 3550 50 0000 C CNN F 1 "General Video Connector" V 4050 2500 50 0000 C CNN F 2 "Connectors:IDC_Header_Straight_40pins" H 4050 1550 50 0001 C CNN F 3 "" H 4050 1550 50 0001 C CNN 1 4050 2500 1 0 0 -1 $EndComp Text GLabel 4300 2450 2 60 Input ~ 0 GV_A0 Text GLabel 4300 2550 2 60 Input ~ 0 GV_A1 Text GLabel 4300 2650 2 60 Input ~ 0 GV_A2 Text GLabel 4300 2750 2 60 Input ~ 0 GV_A3 Text GLabel 4300 2850 2 60 Input ~ 0 GV_A4 Text GLabel 4300 2950 2 60 Input ~ 0 GV_A5 Text GLabel 4300 3050 2 60 Input ~ 0 GV_A6 Text GLabel 4300 3150 2 60 Input ~ 0 GV_A7 Text GLabel 3800 2450 0 60 Input ~ 0 GV_A8 Text GLabel 3800 2550 0 60 Input ~ 0 GV_A9 Text GLabel 3800 2650 0 60 Input ~ 0 GV_A10 Text GLabel 3800 2750 0 60 Input ~ 0 GV_A11 Text GLabel 3800 2850 0 60 Input ~ 0 GV_A12 Text GLabel 3800 2950 0 60 Input ~ 0 GV_A13 Text GLabel 4300 1650 2 60 BiDi ~ 0 GV_D0 Text GLabel 4300 1750 2 60 BiDi ~ 0 GV_D1 Text GLabel 4300 1850 2 60 BiDi ~ 0 GV_D2 Text GLabel 4300 1950 2 60 BiDi ~ 0 GV_D3 Text GLabel 4300 2050 2 60 BiDi ~ 0 GV_D4 Text GLabel 4300 2150 2 60 BiDi ~ 0 GV_D5 Text GLabel 4300 2250 2 60 BiDi ~ 0 GV_D6 Text GLabel 4300 2350 2 60 BiDi ~ 0 GV_D7 NoConn ~ 3800 2150 NoConn ~ 3800 2250 NoConn ~ 3800 2350 NoConn ~ 3800 1650 NoConn ~ 3800 1750 NoConn ~ 3800 1850 NoConn ~ 3800 1950 Text GLabel 4300 3250 2 60 Input ~ 0 GV_RW Text GLabel 4300 3350 2 60 Input ~ 0 GV_E Text GLabel 4050 3650 3 60 Output ~ 0 GND Wire Wire Line 3575 3600 4500 3600 Wire Wire Line 4050 3600 4050 3650 Wire Wire Line 4500 3600 4500 3450 Wire Wire Line 4500 3450 4300 3450 Connection ~ 4050 3600 Wire Wire Line 3575 3450 3800 3450 Wire Wire Line 3575 3450 3575 3600 Wire Wire Line 4300 1550 4750 1550 Wire Wire Line 4750 1550 4750 3525 Wire Wire Line 4750 3525 4500 3525 Connection ~ 4500 3525 Connection ~ 3575 3525 Text GLabel 6600 3650 3 60 Output ~ 0 GND Wire Wire Line 6475 3150 6825 3150 Wire Wire Line 6600 3150 6600 3650 Wire Wire Line 6475 3250 6600 3250 Connection ~ 6600 3250 Wire Wire Line 6475 3350 6600 3350 Connection ~ 6600 3350 Text GLabel 8375 3650 3 60 Output ~ 0 GND Wire Wire Line 8375 3250 8375 3650 Wire Wire Line 8250 3250 8375 3250 Wire Wire Line 8250 3350 8375 3350 Connection ~ 8375 3350 Text GLabel 8525 3150 2 60 Input ~ 0 VCC Wire Wire Line 8250 3150 8525 3150 Text GLabel 6475 2650 2 60 Input ~ 0 SS Text GLabel 8250 2650 2 60 Input ~ 0 SS Text GLabel 6475 2750 2 60 Input ~ 0 SCK Text GLabel 8250 2750 2 60 Input ~ 0 SCK Text GLabel 8250 2850 2 60 Input ~ 0 MOSI Text GLabel 6475 2850 2 60 Input ~ 0 MOSI Text GLabel 8250 2950 2 60 Output ~ 0 MISO Text GLabel 6475 2950 2 60 Output ~ 0 MISO NoConn ~ 8250 2150 NoConn ~ 8250 2250 NoConn ~ 6475 2150 NoConn ~ 6475 2250 Text GLabel 8250 1750 2 60 Input ~ 0 RESET Text GLabel 6475 1750 2 60 Input ~ 0 RESET Wire Wire Line 5975 3550 6600 3550 Connection ~ 6600 3550 Wire Wire Line 7750 3550 8375 3550 Connection ~ 8375 3550 Text GLabel 7750 1550 1 60 Input ~ 0 VCC Text GLabel 5975 1550 1 60 Input ~ 0 VCC Text GLabel 7250 2650 0 60 BiDi ~ 0 GV_D0 Text GLabel 7250 2750 0 60 BiDi ~ 0 GV_D1 Text GLabel 7250 2850 0 60 BiDi ~ 0 GV_D2 Text GLabel 7250 2950 0 60 BiDi ~ 0 GV_D3 Text GLabel 7250 3050 0 60 BiDi ~ 0 GV_D4 Text GLabel 7250 3150 0 60 BiDi ~ 0 GV_D5 Text GLabel 7250 3250 0 60 BiDi ~ 0 GV_D6 Text GLabel 7250 3350 0 60 BiDi ~ 0 GV_D7 Wire Wire Line 3925 6250 3925 6350 Connection ~ 3925 6350 Wire Wire Line 3800 6275 3800 6500 Connection ~ 3800 6500 Wire Wire Line 7250 2450 6825 2450 Wire Wire Line 6825 2450 6825 3150 Connection ~ 6600 3150 Text GLabel 3800 2050 0 60 Input ~ 0 GV_CS Text GLabel 3300 5750 2 60 Output ~ 0 GV_CS Text GLabel 3300 5850 2 60 Output ~ 0 GV_RW Text GLabel 3300 5950 2 60 Output ~ 0 GV_E Text GLabel 5475 3350 0 60 Output ~ 0 GV_A0 Text GLabel 5475 3250 0 60 Output ~ 0 GV_A1 Text GLabel 5475 3050 0 60 Output ~ 0 GV_A3 Text GLabel 5475 2950 0 60 Output ~ 0 GV_A4 Text GLabel 5475 2850 0 60 Output ~ 0 GV_A5 Text GLabel 5475 3150 0 60 Output ~ 0 GV_A2 Text GLabel 5475 2750 0 60 Output ~ 0 GV_A6 Text GLabel 5475 2450 0 60 Output ~ 0 GV_A8 Text GLabel 5475 2650 0 60 Output ~ 0 GV_A7 Text GLabel 5475 2350 0 60 Output ~ 0 GV_A9 Text GLabel 5475 2250 0 60 Output ~ 0 GV_A10 Text GLabel 5475 2150 0 60 Output ~ 0 GV_A11 Text GLabel 5475 2050 0 60 Output ~ 0 GV_A12 Text GLabel 5475 1950 0 60 Output ~ 0 GV_A13 NoConn ~ 5475 1750 NoConn ~ 5475 1850 NoConn ~ 3800 3050 NoConn ~ 3800 3150 NoConn ~ 3800 3250 $Comp L R R5 U 1 1 593F4AC9 P 9800 2525 F 0 "R5" V 9880 2525 50 0000 C CNN F 1 "10k" V 9800 2525 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 9730 2525 50 0001 C CNN F 3 "" H 9800 2525 50 0001 C CNN 1 9800 2525 -1 0 0 1 $EndComp Text GLabel 9800 2250 1 60 Input ~ 0 VCC Text GLabel 3300 6050 2 60 Input ~ 0 GV_EN Text GLabel 9500 2825 0 60 Input ~ 0 GV_DETECT Text GLabel 10050 2825 2 60 Output ~ 0 GV_EN Wire Wire Line 9500 2825 10050 2825 Wire Wire Line 9800 2250 9800 2375 Wire Wire Line 9800 2675 9800 2825 Connection ~ 9800 2825 Text GLabel 3800 3350 0 60 Input ~ 0 GV_DETECT Wire Wire Line 3800 1550 3175 1550 Wire Wire Line 3175 1550 3175 3525 Wire Wire Line 3175 3525 3575 3525 Text GLabel 1500 3850 0 60 Input ~ 0 P_RESET Text GLabel 1825 3850 2 60 Output ~ 0 RESET Wire Wire Line 1825 3850 1500 3850 NoConn ~ 10600 3300 NoConn ~ 10600 4500 Text GLabel 3650 6275 1 60 Output ~ 0 RX Wire Wire Line 3650 6275 3650 6600 Connection ~ 3650 6600 NoConn ~ 3300 6150 NoConn ~ 3300 7100 NoConn ~ 3300 7000 NoConn ~ 3300 6900 NoConn ~ -675 1525 $Comp L C_Small C5 U 1 1 594097F8 P 10175 1175 F 0 "C5" H 10185 1245 50 0000 L CNN F 1 "100nF" V 10075 1075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 10175 1175 50 0001 C CNN F 3 "" H 10175 1175 50 0001 C CNN 1 10175 1175 -1 0 0 1 $EndComp $Comp L C_Small C6 U 1 1 59409B10 P 10450 1175 F 0 "C6" H 10460 1245 50 0000 L CNN F 1 "100nF" V 10350 1075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 10450 1175 50 0001 C CNN F 3 "" H 10450 1175 50 0001 C CNN 1 10450 1175 -1 0 0 1 $EndComp Text GLabel 10175 875 1 60 Input ~ 0 VCC Text GLabel 10175 1475 3 60 Output ~ 0 GND Wire Wire Line 10175 875 10175 1075 Wire Wire Line 10175 1275 10175 1475 Wire Wire Line 10450 1075 10450 1000 Wire Wire Line 10450 1000 10175 1000 Connection ~ 10175 1000 Wire Wire Line 10450 1275 10450 1375 Wire Wire Line 10450 1375 10175 1375 Connection ~ 10175 1375 Text Notes 7025 6875 0 60 ~ 0 Handles interacting with the PIA via the peripheral bus, substituting the original Apple 1\nmonitor circuitry. Includes General Video Connector as a means of interacting with other\ncustom display modules implemented. $EndSCHEMATC