Programming Model
http://www.mcg.mot.com/literature
5-29
5
Scrub Timer Counter (Bits 7-0)
This register reflects the current value in the Scrub Timer Counter bits 7-0.
Scrub Address Counter (Bits 26-24)
This read/write register is the Scrub Address Counter. Each time the
scrubber performs a scrub memory cycle, the Scrub Address Counter
increments. For an entire scrub, the Scrub Address Counter starts at 0 and
increments until it reaches the DRAM size that is indicated by the
MEMSIZ pins. Writes to this address update the Scrub Address Counter;
reads to this address yield the value in the Scrub Address Counter. The
ability to read and write this counter is provided for test purposes. Note that
if scrubbing is in process, the Scrub Time On/Time Off Register should be
set for the minimum time on and the maximum time off during any writes
to this register. This register reflects the current value in the Scrub Address
Counter bits 26-24.
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
ADR/SIZ
1st $FFF43048/2nd $FFF43148 (8-bits)
BIT
31
30
29
28
27
26
25
24
NAME
ST7
ST6
ST5
ST4
ST3
ST2
ST1
ST0
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
Summary of Contents for MVME172
Page 6: ...Place holder ...
Page 18: ...xviii ...
Page 78: ...1 60 Computer Group Literature Center Web Site Board Description and Memory Maps 1 ...
Page 332: ...5 42 Computer Group Literature Center Web Site MCECC 5 ...
Page 336: ...A 4 Related Documentation A ...
Page 352: ...Index IN 12 Computer Group Literature Center Web Site I N D E X ...
Page 354: ......