LPC Interface Bridge Registers (D31:F0)
13.3.3
Counter Access Ports Register (LPC I/F—D31:F0)
I/O Address:
Counter 0 – 40h,
Counter 1 – 41h,
Counter 2 – 42h
All bits undefined
Attribute:
Size:
R/W
8 bit
Default Value:
Bit
Description
Counter Port — R/W. Each counter port address is used to program the 16-bit Count
Register. The order of programming, either LSB only, MSB only, or LSB then MSB, is
defined with the Interval Counter Control Register at port 43h. The counter port is also
used to read the current count from the Count Register, and return the status of the
counter programming following a Read Back Command.
7:0
Datasheet
423
INTEL [ INTEL ]
