- First International Computer Laptop User Manual

Software Functional Overview
FIC A360 Service Manual 3-37
disabled.
− The function of power-on or Resume will be inhibited until the battery low condition
is removed.
3.6.4 AC Adapter
When plug in the AC adapter, the system will do the following action:
− The charger will charge the Main 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” is set to “Battery Only”.
3.7 PMU07
The Embedded controller PMU07 acts as a supplement for power management control. It
supports a lot of functions via SMBus interface.
3.7.1 The System EC RAM with PMU07
Embedded Controller Command Set
The EC I/F command set allows the OS to communicate with the PMU07.
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_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
#1 EC_SC W Command byte
Header
No Interrupt Burst Enable
Embedded
Controller
(BE_EC)
0x82
#2 EC_DAT
A
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
#1 EC_SC W Command byte
Header
No Interrupt Query
Embedded
Controller
(QR_EC)
0x84
#2 EC_DAT
A
R Query value to
host
Interrupt on
OBF=1