EESchema Schematic File Version 4 LIBS:ZORRO-PICO2W-CP-cache EELAYER 29 0 EELAYER END $Descr A4 11693 8268 Sheet 1 1 Title "Zorro Pico 2 W Clockport Interface" Comment1 "Pico 2 W replaces LAN/Clockport connector" Comment2 "SN74LVC8T245 level translation, open-drain IRQ" $EndDescr $Comp L ZORRO-PICO2W-CP-cache:PICO2W_CLOCKPORT PICO1 U 1 1 1 P 9000 3500 F 0 "PICO1" H 9000 4650 60 0000 C CNN F 1 "Raspberry Pi Pico 2 W" H 9000 4550 60 0000 C CNN F 2 "MCU_RaspberryPi_and_Boards:RPi_Pico_SMD_TH" H 9000 3500 50 0001 C CNN 1 9000 3500 1 0 0 -1 $EndComp $Comp L ZORRO-PICO2W-CP-cache:LVC8T245 U1 U 1 1 2 P 3550 2500 F 0 "U1" H 3550 3250 60 0000 C CNN F 1 "SN74LVC8T245 DATA" H 3550 3150 60 0000 C CNN 1 3550 2500 1 0 0 -1 $EndComp $Comp L ZORRO-PICO2W-CP-cache:LVC8T245 U2 U 1 1 3 P 3550 5200 F 0 "U2" H 3550 5950 60 0000 C CNN F 1 "SN74LVC8T245 CONTROL" H 3550 5850 60 0000 C CNN 1 3550 5200 1 0 0 -1 $EndComp $Comp L ZORRO-PICO2W-CP-cache:INV1 U3 U 1 1 4 P 5300 6450 F 0 "U3" H 5300 6800 60 0000 C CNN F 1 "SN74LVC1G04" H 5300 6700 60 0000 C CNN 1 5300 6450 1 0 0 -1 $EndComp $Comp L ZORRO-PICO2W-CP-cache:NMOS_IRQ Q3 U 1 1 5 P 7000 6450 F 0 "Q3" H 7000 6800 60 0000 C CNN F 1 "2N7002" H 7000 6700 60 0000 C CNN 1 7000 6450 1 0 0 -1 $EndComp Text Notes 1200 1150 0 100 ~ 20 ZORRO CLOCKPORT SIDE (5 V LOGIC) Text Notes 7700 1150 0 100 ~ 20 PICO 2 W SIDE (3.3 V LOGIC) Text Notes 1150 7050 0 60 ~ 12 U1: bidirectional data buffer, OE=CP_CS, DIR=not CP_WE. U2: Clockport inputs to Pico GPIO. Text Notes 1150 7200 0 60 ~ 12 Q3 provides an open-drain CP_IRQ output. R11 is a 1 kΩ pull-up to +5V. Wire Wire Line 2800 2900 3000 2900 Text Label 2800 2900 0 50 ~ 0 DQ0 Wire Wire Line 2800 2800 3000 2800 Text Label 2800 2800 0 50 ~ 0 DQ1 Wire Wire Line 2800 2700 3000 2700 Text Label 2800 2700 0 50 ~ 0 DQ2 Wire Wire Line 2800 2600 3000 2600 Text Label 2800 2600 0 50 ~ 0 DQ3 Wire Wire Line 2800 2500 3000 2500 Text Label 2800 2500 0 50 ~ 0 DQ4 Wire Wire Line 2800 2400 3000 2400 Text Label 2800 2400 0 50 ~ 0 DQ5 Wire Wire Line 2800 2300 3000 2300 Text Label 2800 2300 0 50 ~ 0 DQ6 Wire Wire Line 2800 2200 3000 2200 Text Label 2800 2200 0 50 ~ 0 DQ7 Wire Wire Line 4100 2900 4300 2900 Text Label 4300 2900 2 50 ~ 0 PICO_D0 Wire Wire Line 4100 2800 4300 2800 Text Label 4300 2800 2 50 ~ 0 PICO_D1 Wire Wire Line 4100 2700 4300 2700 Text Label 4300 2700 2 50 ~ 0 PICO_D2 Wire Wire Line 4100 2600 4300 2600 Text Label 4300 2600 2 50 ~ 0 PICO_D3 Wire Wire Line 4100 2500 4300 2500 Text Label 4300 2500 2 50 ~ 0 PICO_D4 Wire Wire Line 4100 2400 4300 2400 Text Label 4300 2400 2 50 ~ 0 PICO_D5 Wire Wire Line 4100 2300 4300 2300 Text Label 4300 2300 2 50 ~ 0 PICO_D6 Wire Wire Line 4100 2200 4300 2200 Text Label 4300 2200 2 50 ~ 0 PICO_D7 Wire Wire Line 2800 2050 3000 2050 Text Label 2800 2050 0 50 ~ 0 CP_DIR Wire Wire Line 4100 2050 4300 2050 Text Label 4300 2050 2 50 ~ 0 CP_CS Wire Wire Line 2800 5600 3000 5600 Text Label 2800 5600 0 50 ~ 0 LAN_A3 Wire Wire Line 2800 5500 3000 5500 Text Label 2800 5500 0 50 ~ 0 LAN_A4 Wire Wire Line 2800 5400 3000 5400 Text Label 2800 5400 0 50 ~ 0 LAN_A5 Wire Wire Line 2800 5300 3000 5300 Text Label 2800 5300 0 50 ~ 0 LAN_A6 Wire Wire Line 2800 5200 3000 5200 Text Label 2800 5200 0 50 ~ 0 CP_CS Wire Wire Line 2800 5100 3000 5100 Text Label 2800 5100 0 50 ~ 0 CP_WE Wire Wire Line 2800 5000 3000 5000 Text Label 2800 5000 0 50 ~ 0 CP_RD Wire Wire Line 2800 4900 3000 4900 Text Label 2800 4900 0 50 ~ 0 IDE_RST Wire Wire Line 4100 5600 4300 5600 Text Label 4300 5600 2 50 ~ 0 PICO_A2 Wire Wire Line 4100 5500 4300 5500 Text Label 4300 5500 2 50 ~ 0 PICO_A3 Wire Wire Line 4100 5400 4300 5400 Text Label 4300 5400 2 50 ~ 0 PICO_A4 Wire Wire Line 4100 5300 4300 5300 Text Label 4300 5300 2 50 ~ 0 PICO_A5 Wire Wire Line 4100 5200 4300 5200 Text Label 4300 5200 2 50 ~ 0 PICO_CS Wire Wire Line 4100 5100 4300 5100 Text Label 4300 5100 2 50 ~ 0 PICO_WE Wire Wire Line 4100 5000 4300 5000 Text Label 4300 5000 2 50 ~ 0 PICO_RD Wire Wire Line 4100 4900 4300 4900 Text Label 4300 4900 2 50 ~ 0 PICO_RESET Wire Wire Line 8150 4300 8350 4300 Text Label 8150 4300 0 50 ~ 0 PICO_D0 Wire Wire Line 8150 4200 8350 4200 Text Label 8150 4200 0 50 ~ 0 PICO_D1 Wire Wire Line 8150 4100 8350 4100 Text Label 8150 4100 0 50 ~ 0 PICO_D2 Wire Wire Line 8150 4000 8350 4000 Text Label 8150 4000 0 50 ~ 0 PICO_D3 Wire Wire Line 8150 3900 8350 3900 Text Label 8150 3900 0 50 ~ 0 PICO_D4 Wire Wire Line 8150 3800 8350 3800 Text Label 8150 3800 0 50 ~ 0 PICO_D5 Wire Wire Line 8150 3700 8350 3700 Text Label 8150 3700 0 50 ~ 0 PICO_D6 Wire Wire Line 8150 3600 8350 3600 Text Label 8150 3600 0 50 ~ 0 PICO_D7 Wire Wire Line 8150 3450 8350 3450 Text Label 8150 3450 0 50 ~ 0 PICO_A2 Wire Wire Line 8150 3350 8350 3350 Text Label 8150 3350 0 50 ~ 0 PICO_A3 Wire Wire Line 8150 3250 8350 3250 Text Label 8150 3250 0 50 ~ 0 PICO_A4 Wire Wire Line 8150 3150 8350 3150 Text Label 8150 3150 0 50 ~ 0 PICO_A5 Wire Wire Line 8150 3050 8350 3050 Text Label 8150 3050 0 50 ~ 0 PICO_CS Wire Wire Line 8150 2950 8350 2950 Text Label 8150 2950 0 50 ~ 0 PICO_WE Wire Wire Line 8150 2850 8350 2850 Text Label 8150 2850 0 50 ~ 0 PICO_RD Wire Wire Line 8150 2750 8350 2750 Text Label 8150 2750 0 50 ~ 0 PICO_RESET Wire Wire Line 9650 3750 9850 3750 Text Label 9850 3750 2 50 ~ 0 PICO_IRQ Wire Wire Line 9650 4300 9850 4300 Text Label 9850 4300 2 50 ~ 0 +5V Wire Wire Line 9650 4200 9850 4200 Text Label 9850 4200 2 50 ~ 0 +3V3 Wire Wire Line 9650 4100 9850 4100 Text Label 9850 4100 2 50 ~ 0 GND Text Label 3550 1750 1 50 ~ 0 +3V3 Text Label 3700 1750 1 50 ~ 0 +3V3 Text Label 3550 3250 1 50 ~ 0 GND Text Label 3550 4450 3 50 ~ 0 +3V3 Text Label 3700 4450 3 50 ~ 0 +3V3 Text Label 3550 5950 3 50 ~ 0 GND Text Label 5300 6100 3 50 ~ 0 +3V3 Text Label 5300 6800 3 50 ~ 0 GND Text Label 7000 6750 3 50 ~ 0 GND Wire Wire Line 4800 6450 5000 6450 Text Label 4800 6450 0 50 ~ 0 CP_WE Wire Wire Line 5650 6450 5850 6450 Text Label 5850 6450 2 50 ~ 0 CP_DIR Wire Wire Line 6500 6450 6700 6450 Text Label 6500 6450 0 50 ~ 0 PICO_IRQ Text Label 7000 6150 1 50 ~ 0 CP_IRQ Text Label 7350 6150 0 50 ~ 0 CP_IRQ Text Label 7600 6150 0 50 ~ 0 +5V Text Label 3000 2050 0 50 ~ 0 CP_DIR Text Label 4100 2050 2 50 ~ 0 CP_CS Text Notes 7480 6200 0 50 ~ 0 R11 1k pull-up $EndSCHEMATC