Hardware timing is provided by the 6596 chip. This chip provides several timers, all of which can be operated in one-shot and multi-shot modes. The 6596 also provides random number generation in hardware.
| Port | Name | Notes |
|---|---|---|
| 0x00 | RTC: Hours | |
| 0x01 | RTC: Minutes | |
| 0x02 | RTC: Seconds | |
| 0x03 | RTC: Hundredths | |
| 0x04 | Timer 0 High | |
| 0x05 | Timer 0 Low | |
| 0x06 | Timer 1 High | |
| 0x07 | Timer 1 Low | |
| 0x08 | Timer 2 High | |
| 0x09 | Timer 2 Low | |
| 0x0A | Timer 3 High | |
| 0x0B | Timer 3 Low | |
| 0x0C | Random High | |
| 0x0D | Random Low | |
| 0x0E | Timer Modes |
|
| 0x0F | Reset |