This section has 256x8 Memory. It means 256 location of 8 bit each.
When CE-bar=0, IO/M-bar=0 and ALE is activated the address in AD0-AD7 are latched and will be provided to 256 memory location.
| A2 | A1 | A0 | Port |
| 0 | 0 | 0 | Command/status reg. |
| 0 | 0 | 1 | PA |
| 0 | 1 | 0 | PB |
| 0 | 1 | 1 | PC |
| 1 | 0 | 0 | Timer LSB |
| 1 | 0 | 1 | Timer MSB |
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