W83977F-A Datasheet, PDF (113/182 Pages) Winbond – WINBOND I/O

W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
9.7.3 "On-Now" Register 3 (Bank2 Register 4Bh)
BIT
NAME
7
6
5
4
PHRIST Reserved PSPOFD PSPOFTD
3
RIBD
This register is read only except bit 5.
2
RIAD
1
PHRID
0
ALMBD
PHRIST ( PHRI Status)
This bit holds the current value of PHRI .
PSPOFD (Panel Switch Power-Off Detect)
Logical 1 on this bit, a Panel-Switch-Off event is detected.
Logical 0 on this bit, there is no Panel-Switch-Off event.
PSOFTD (Panel Switch Power-Off Delay Timer Detect)
This bit is set when Panel Switch Power-Off Delay Timer reaches its terminal count. This bit is
cleared by reading this register.
RIBD (RI B Detect)
A falling edge transition on RIB asserts this bit. This bit is cleared by reading this register.
RIAD (RI A Detect)
A falling edge transition on RIA asserts this bit. This bit is cleared by reading this register.
PHRID (PHRI Detect)
A falling edge transition on PHRI asserts this bit. This bit is cleared by reading this register.
ALMBD (Alarm B Detect)
Logical 1 on this bit, the alarm B when reaching its preset time asserts this bit. This bit is cleared by
reading this register.
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Publication Release Date: May 2006
Revision 0.60