Motorola MVME1X7P User Manual
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.
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