W83977AF Information Storage Devices, Inc, W83977AF Datasheet - Page 115

• Manufacturer Part Number: W83977AF
• Description: W83877TF Plus Kbc, Cir, RTC
• Manufacturer: Information Storage Devices, Inc

W83977F/ W83977AF
PRELIMINARY
6.7.3 "On-Now" Register 3 (Bank2 Register 4Bh)
BIT
7
6
5
4
3
2
1
0
NAME
PHRIST
Reserved PSPOFD PSPOFTD
RIBD
RIAD
PHRID
ALMBD
This register is read only except bit 5.
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.
Publication Release Date:March 1998
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Revision 0.58