Motorola MVME172 - Manual (Page 318)

5-28 Computer Group Literature Center Web Site
MCECC
5
Scrub Prescaler Counter (Bits 15-8)
This register reflects the current value in the scrub prescaler bits 15-8.
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, reads to this address yield its 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 $FFF4303C/2nd $FFF4313C (8-bits)
BIT 31 30 29 28 27 26 25 24
NAME SPS15 SPS14 SPS13 SPS12 SPS11 SPS10 SPS9 SPS8
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 $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