W83877ATG Nuvoton Technology Corporation of America, W83877ATG Datasheet - Page 165

• Manufacturer Part Number: W83877ATG
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83877ATG

• Lead Free Status / RoHS Status: Supplier Unconfirmed

11.4.9 Power Management 1 Timer 1 (PM1TMR1)
Register Location:
Default Value:
Attribute:
Size:
11.4.10
Register Location:
Default Value:
Attribute:
Size:
0-7
BIT
TMR_VAL
Power Management 1 Timer 2 (PM1TMR2)
NAME
<CR33>+8H System I/O Space
00h
Read only
8 bits
This read-only field returns the running count of the power management
timer. This is a 24-bit counter that runs off of a 3.579545 MHZ clock, and
counts while in the system working state. The timer is reset and then
continues counting until the CLKIN input to the chip is stopped. If the clock is
restarted without a MR reset, then the counter will continue counting from
where it stopped. The TMR_STS bit is set any time the last bit of the timer
(bit 23) goes from 0 to 1 or from 1 to 0. If the TMR_EN bit is set, the setting
of the TMR_STS bit will generate an SCI interrupt.
<CR33>+9H System I/O Space
00h
Read only
8 bits
7
7
6
6
5
5
4
4
3
3
- 158 -
2
2
DESCRIPTION
W83877ATF/W83877ATG
1
1
0
0
TMR_VAL8
TMR_VAL9
TMR_VAL10
TMR_VAL11
TMR_VAL12
TMR_VAL13
TMR_VAL14
TMR_VAL15
TMR_VAL0
TMR_VAL1
TMR_VAL2
TMR_VAL3
TMR_VAL4
TMR_VAL5
TMR_VAL6
TMR_VAL7