Software Functional Overview
Controller
(QR_EC) #2 EC_DA
TA R Query value to
host Interrupt on
OBF=1
3.8.2 PMU08 EC RAM List
The micro controller PMU08 acts as a supplement for power management control. It supports
the following functions via SMBus Command ( 0x80 , 0xC0 )
Register Bit Number
Function Address Name R/W 7 6 543210Logic Default Description
00h
*3 Power unit R(/W) DATA[15:0] *1 - 0xffff 0x0000: mWh [Fixed value]
0xffff: Unknown
02h
*3 Design
capacity R(/W) DATA[15:0] *1 - 0xffff
0x0000-0xfffe(mWh)
0xffff: Unknown
04h
*3
Last Full
Charge
Capacity R(/W) DATA[15:0] *1 - 0xffff
0x0000-0xfffe(mWh)
0xffff: Unknown
06h
*3 Battery
Technology R(/W) DATA[15:0] *1 - 0xffff
0x0000 : Primary
0x0001: Secondary [Fixed value]
0xffff: Unknown.
08h
*3 Design
Voltage R(/W) DATA[15:0] *1 - 0xffff
0x0000-0xfffe(mV)
0xffff: Unknown
0Ah
*3
Design
capacity of
Warning R(/W) DATA[15:0] *1 - 0xffff
0x0000-0xfffe(mWh)
0xffff: Unknown
0Ch
*3
Design
capacity of
Low R(/W) DATA[15:0] *1 - 0xffff
0x0000-0xfffe(mWh)
0xffff: Unknown
0Eh
*3
Battery
capacity
Granularity 1 R(/W) DATA[15:0] *1 - 0xffff
0x0000-0xfffe(mWh)
0xffff: Unknown
10h
*3
Battery
capacity
Granularity 2 R(/W) DATA[15:0] *1 - 0xffff
0x0000-0xfffe(mWh)
0xffff: Unknown
12h
*3 Model
number R(/W) DATA[15:0] *1 - 0xffff 0x0000 [Not support]
14h
*3 Serial
Number R(/W) DATA[15:0] *1 - 0xffff 0x0000 [Not support]
16h
*3 Battery type R(/W) DATA[15:8]
*1
All bits are 0
CELL_TYP
E
[7:0] - 0xffff
CELL_TYPE [3:0] This code
depends on battery data format. In the
future, this code may be added.
0x00: NiMH
0x01: Li-ion
0x10: Non-rechargeable battery
(Reserved)
1st Battery
[ _BIF ]
18h
*3 OEM
Information R(/W)
DATA
[15:8]
*1
All bits
are 0
Vender[7:0] - 0xffff
Vender [7:0] This code depends on
battery data format.
And the following name should be
described in the ASL with the same
character code.
In the future, these codes will be
added.
0: “MoliEnergy”
1: “Panasonic”
2: (SANYO does not agree the vender
name display)
3: “TBCL” (Toshiba)
4: “Sony”
*1: The register type is wor d.
*3: This register is not cleared if the system is in S4-S5 state.
R(/W): This is the read only register, but the written data will be able to read back till PMU updates the data
periodically, or PMU detects the status change.