8254 Timer Registers (Base + 0) - ADLINK Technology cPCI-7200 User Manual

3.6 8254 Timer Registers (BASE + 0)

The 8254 timer/ counter IC occupies 4 I/O address. Users can refer to
Tundra's or Intel's data sheet for a full description of the 8254 features. You
can download the 8254 data sheet from the following web site:
http://support.intel.com/support/controllers/peripheral/231164.htm or
http://www.tundra.com (for Tundra's 82C54 datasheet.)
Address
Base + 0
Base + 4
Base + 8
Base + C
22 Registers Format
Read
Counter 0
Counter 1
Counter 2
---
Write
Counter 0
Counter 1
Counter 2
CLK Control CW0