PC Engine Expansion
From HwB
Available at PC Engine.
Pinout
1 23 C*********************** B*********************** A***********************
| Pin | Name | Description |
|---|---|---|
| A1 | SNDL | Audio Left output |
| A2 | Vout | Voltage out. The PC Engine supplies +5v to peripherals. |
| A3 | VS | ? |
| A4 | A18 | Address bit 18 |
| A5 | A14 | Address bit 14 |
| A6 | A9 | Address bit 9 |
| A7 | A10 | Address bit 10 |
| A8 | D1 | Data bit 1 |
| A9 | DCK | Dot/Pixel Clock (5.36 / 7.16 / 10.73 MHz) |
| A10 | VSn | Vertical Sync |
| A11 | Vin | Voltage in. You can power the PC Engine form this port. Note that power supplied through these pins bypasses the power switch, so the system will be ON regardless of switch position. |
| A12 | VD8 | ViDeo Bus: high for sprite/border pixels, low for background pixels (for genlock, or LaserActive use?) |
| A13 | VD7 | ViDeo Bus: palette value bit 7 |
| A14 | Vin | Voltage in. You can power the PC Engine form this port. Note that power supplied through these pins bypasses the power switch, so the system will be ON regardless of switch position. |
| A15 | VD5 | ViDeo Bus: palette value bit 5 |
| A16 | VD4 | ViDeo Bus: palette value bit 4 |
| A17 | VD3 | ViDeo Bus: pixel value bit 3 |
| A18 | VD2 | ViDeo Bus: pixel value bit 2 |
| A19 | VD1 | ViDeo Bus: pixel value bit 1 |
| A20 | VD0 | ViDeo Bus: pixel value bit 0 |
| A21 | GND | Ground |
| A22 | Vid | |
| A23 | Red | Red Video |
| B1 | SNDin | Audio In |
| B2 | CDD | CD Detect (AKA K7, Input Bit 7) |
| B3 | HSM | High Speed Mode |
| B4 | /WR | Read / Write |
| B5 | ** | |
| B6 | A8 | Address bit 8 |
| B7 | /OE | Output Enable |
| B8 | D0 | Data bit 0 |
| B9 | D3 | Data bit 3 |
| B10 | D5 | Data bit 5 |
| B11 | HSn | Horizontal Sync |
| B12 | A0 | Address bit 0 |
| B13 | A2 | Address bit 2 |
| B14 | VD6 | ViDeo Bus: palette value bit 6 |
| B15 | A5 | Address bit 5 |
| B16 | A7 | Address bit 7 |
| B17 | A12 | Address bit 12 |
| B18 | A16 | Address bit 16 |
| B19 | /CE | Chip Enable |
| B20 | IRQ1 | Interrupt 1 |
| B21 | IRQ2 | Interrupt 2 |
| B22 | /RST | Reset |
| B23 | Grn | Green Video |
| C1 | SNDR | Audio Right output |
| C2 | GND | Ground |
| C3 | HuD | HuCard Detect |
| C4 | CEK | |
| C5 | A17 | Address bit 17 |
| C6 | A13 | Address bit 13 |
| C7 | A11 | Address bit 11 |
| C8 | GND | Ground |
| C9 | D2 | Data bit 2 |
| C10 | D4 | Data bit 4 |
| C11 | D6 | Data bit 6 |
| C12 | D7 | Data bit 7 |
| C13 | A1 | Address bit 1 |
| C14 | A3 | Address bit 3 |
| C15 | A4 | Address bit 4 |
| C16 | A6 | Address bit 6 |
| C17 | GND | Ground |
| C18 | A15 | Address bit 15 |
| C19 | A19 | Address bit 19 |
| C20 | GND | Ground |
| C21 | Vout | Voltage out. The PC Engine supplies +5v to peripherals. |
| C22 | Sync | Sync Video |
| C23 | Blu | Blue Video |