6.4 Page 0: 82C54 Counter/Timer Access

This section is included as a reference to the page 0 counter/timer registers. Behavior of these registers should be identical to the 82C54 counter/timer chip. Please read reference [12], the 82C54 datasheet, for this behavior. More info on counter/timer signals can be found later in this document.

Page 0, Base + 12 Read/Write Counter 0 data

CTR0D7-0 Counter 0 data

Page 0, Base + 13 Read/Write Counter 1 data

CTR1D7-0 Counter 1 data

Page 0, Base + 14 Read/Write Counter 2 data

Page 0, Base + 15 Read/Write Counter/timer Control Register

SC1-0	Counter Select
RW1-0	Read/Write Mode
M2-0	Timer Mode
BCD	Binary Coded Decimal Count

For more information see the 82C54 Datasheet