FIC M296 - Manual (Page 85)

Software Functional Overview
− 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
condition is removed.
3.7.4 AC Adapter
When plug in the AC adapter, the system will do the following action:
− The charger will charge the battery if it is possible.
− The Battery Charging Indicator will turn on if the battery is in changing mode.
− The power management function will be disabled, if the Setup item of “Power
Management Mode” is set to “Battery Only”
3.8 PMU08
The embedded controller PMU08 acts as a supplement for power management control. It
supports a lot of functions via SMBus interface.
3.8.1 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
Command
Byte
Encoding
Byte Register
R
/
W
Description Interrupt
#1 EC_SC W Command byte
Header
Interrupt on
IBF=0
#2 EC_DA
TA
W Address byte to
read
No Interrupt
Read Embedded
Controller
(RD_EC) 0x80
#3 EC_DA
TA
R Read data to host Interrupt on
OBF=1
#1 EC_SC W Command byte
Header
Interrupt on
IBF=0
#2 EC_DA
TA
W Address byte to
write
Interrupt on
IBF=0
Write Embedded
Controller
(WR_EC) 0x81
#3 EC_DA
TA
W Data to write Interrupt on
IBF=0
#1 EC_SC W Command byte
Header
No Interrupt Burst Enable
Embedded
Controller
(BE_EC) 0x82
#2 EC_DA
TA
R Burst
acknowledge byte
Interrupt on
OBF=1
Burst Disable
Embedded
Controller
(BD_EC) 0x83 #1 EC_SC W Command byte
Header
Interrupt on
IBF=0
Query
Embedded 0x84 #1 EC_SC W Command byte
Header
No Interrupt
FIC M295 / M296 Service Manual
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