Motorola MVME1X7P - Manual (Page 272)

4-24 Computer Group Literature Center Web Site
MCECC Functions
4
Scrub Prescaler Counter (Bits 7-0)
This register reflects the current value in the scrub prescaler bits 7-0.
Scrub Timer Counter (Bits 15-8)
This read/write register is the Scrub Timer counter. If scrubbing is enabled
and the Scrub Period register is non-zero, the Scrub Timer counter
increments approximately once every two seconds until it matches the
value programmed into the Scrub Period register, at which time it clears
and resumes incrementing. Writes to this address update the Scrub Timer
counter and reads to this address yield the counter’s value. The ability to
read and write this register is provided for test purposes. Programming this
counter is not recommended. This register reflects the current value in the
Scrub Timer counter bits 15-8.
ADR/SIZ 1st $FFF43040/2nd $FFF43140 (8-bits)
BIT 31 30 29 28 27 26 25 24
NAME SPS7 SPS6 SPS5 SPS4 SPS3 SPS2 SPS1 SPS0
OPER R/W R/W R/W R/W R/W R/W R/W R/W
RESET 0 PLS 0 PLS 0 PLS 0 PLS 0 PLS 0 PLS 0 PLS 0 PLS
ADR/SIZ 1st $FFF43044/2nd $FFF43144 (8-bits)
BIT 31 30 29 28 27 26 25 24
NAME ST15 ST14 ST13 ST12 ST11 ST10 ST9 ST8
OPER R/W R/W R/W R/W R/W R/W R/W R/W
RESET 0 PLS 0 PLS 0 PLS 0 PLS 0 PLS 0 PLS 0 PLS 0 PLS