Compal JHL90 Service Manual page 40

JHL90 Service Manual
CMD
12.3.2 Command set 50h-5Fh for OEM defined through Port60/64, Port62/66
and Port68/6C
Command Set (from system's point of view) via 60/64, 62/66 and 68/6C.
CMD
50h
51h
52h
53h
54h
55h
56h
2-24
DATA Description
41h Get battery information
DATA Description
Get Docking status.
A0h = No dock
A6h = simple docked
Get revision number of EC-FW
BIOS Rev. 3 bytes
Byte0:
Bit0-Bit2 = major number (0-7)
Bit3-Bit7 = type of EC-FW
e.g. 0 = A, 1=B and so on.
Byte1:
minor revision number (0-9)
Byte2:
Type of EC-FW from 'A' to 'Z'
Byte3:
If it is 00h then system display "ROM",
it is "T01" if set 01h and so on.
Get EC information
A0h Return project name
e.g. "IBL80"
A2h Return Project ID
A3h Return boot code size
Low nibble is for EC type
0x00:NS87570 0x01:NS87591S
0x02:NS87591L
0x03:NS87591E 0x04:NS97591V
0x05:KB910
0x06:KB910L 0x07:KB926
Others:To Be Defined
High nibble is for boot block size, 4K
bytes base
Boot block size are N*4K
A4h Get Critical Status
0x80: Crisis mode
0x00: Normal mode
Command to read SPI ROM
0 High byte address
1 Middle byte address
2 Low byte address
None Reserved
None Reserved
Get SMI trigger source
No event
DTS temperature update
Decrease brightness event
Increase brightness event
return
19 bytes
return
One byte
Three bytes
Five Bytes
0x31
One byte
One byte
One byte
One byte
One byte
One byte
None
None
One byte
80h
A0h
A1h
A2h