FIC MB05W Service Manual
1-56
FIC MB05 Service Manual
battery low SMI. The system will do the following action.
1) The Power Indicator will become blinking.
2) The system will issue a Warning beep.
3.5.3 Battery Low - Low
When the battery voltage is approaching to the Low-Low level, the PMU08 will
generate a battery low-low SMI. The system will do the following action.
1) The Power Indicator will keep on Blinking.
2) The system will enter Suspend To Disk mode even the power management is disabled. The
function of power-on or Resume will be inhibited until the battery Low
–
Low condition is
removed.
3.5.4 AC Adapter
When plug in the AC adapter, the system will do the following action:
- The charger will charge the Main Battery, if remaining capacity is not full.
- The Battery Charging Indicator will turn on if the battery is in changing mode.
3.6
PMU08
The Embedded controller PMU08 acts as a supplement for power management control. It
supports a lot of functions via SMBus interface.
3.6.1
The System EC RAM with PMU08
Embedded Controller Command Set
The EC I/F command set allows the OS to communicate with the PMU08.
For detail information refer to ACPI 1.0B specification.
EC I/F Command
Com
man
d
Byte
Enco
ding
Byte
Register
R/W
Description
Interrupt
#1
EC_SC
W
Command
byte Header
Interrupt on
IBF=0
#2
EC_DAT
A
W
Address byte
to read
No Interrupt
Read Embedded
Controller
(RD_EC)
0x80
#3
EC_DAT
A
R
Read data to
host
Interrupt on
OBF=1
#1
EC_SC
W
Command
byte Header
Interrupt on
IBF=0
#2
EC_DAT
A
W
Address byte
to write
Interrupt on
IBF=0
Write Embedded
Controller
(WR_EC)
0x81
#3
EC_DAT
A
W
Data to write
Interrupt on
IBF=0
PDF created with FinePrint pdfFactory trial version
http://www.fineprint.com
