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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 5 4 3 2 1 0
Logic 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)
1
st
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 word.
*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.
3-36 FIC M295 / M296 Service Manual