Scrub Period Register Bits 15-8; Scrub Period Register Bits 7-0 - Motorola MVME1X7P Programmer's Reference Manual

MCECC Functions

Scrub Period Register Bits 15-8

4
ADR/SIZ
BIT
31
NAME
SBPD15 SBPD14 SBPD13 SBPD12 SBPD11 SBPD10 SBPD9 SBPD8
OPER R/W
RESET
1 PLS

Scrub Period Register Bits 7-0

ADR/SIZ
BIT
NAME
OPER
RESET
4-20
SCRB This status bit reflects the state of the scrubber. When the
scrubber is in the process of doing a scrub, this bit is set.
When the scrubber is between scrubs, this bit is cleared.
The Scrub Period Control register controls how often a scrub of the entire
memory is performed if the SCRBEN bit is set in the Scrub Control
register. The time between scrubs is approximately two seconds times the
value programmed into the Scrub Period register. The scrub period can be
programmed from once every four seconds to once every 36 hours. This
register contains bits 15-8 of the Scrub Period register.
1st $FFF43028/2nd $FFF43128 (8-bits)
30 29
R/W R/W
1 PLS 1 PLS
This register contains bits 7-0 of the Scrub Period register.
1st $FFF4302C/2nd $FFF4312C (8-bits)
31 30 29
SBPD7 SBPD67 SBPD5
R/W R/W R/W
1 PLS 1 PLS 1 PLS
28 27 26
R/W R/W R/W
1 PLS 1 PLS 1 PLS
28 27 26
SBPD4 SBPD3 SBPD2 SBPD1 SBPD0
R/W R/W R/W
1 PLS 1 PLS 1 PLS
Computer Group Literature Center Web Site
25 24
R/W R/W
1 PLS 1 PLS
25 24
R/W R/W
1 PLS 1 PLS