Description
POKEY (means "POT and KEY" as in the paddles and keyboard) is a digital
input/output (I/O) chip. It handles such disparate tasks as the serial I/O
bus, audio generation, keyboard scan, and random number generation. It also
digitizes the resistive paddle inputs and controls maskable interrupt (IRQ)
requests from peripherals.
Catalogue numbers
CO12294B
Pinout
| A0-A3 | memory address bus |
| D0-D7 | memory data bus |
| Vss | ground |
| Ø2 | phase 2 clock input |
| P0-P7 | paddle inputs |
| /KR1-/KR2 | keyboard row strobe |
| Vcc | +5V power |
| /K1-/K5 | keyboard input |
| SID | serial input data |
| ACLK | serial output clock (OCLK) |
| BCLK | bidirectional clock |
| SOD | serial data out |
| /IRQ | IRQ output |
| /CS0 | chip select |
| CS1 | chip select |
| R/W | read/write |
| AUD | audio output |
Back (c) 1998-2004 Jindroush Last modified: Sun Mar 25 23:50:16 2001
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