JHL90 Service Manual
12.3.1 Command set 40h-4Fh for OEM defined through Port60/64, Port62/66
and Port68/6C
• Command Set via port 60/64, 62/66 and 68/6C.
CMD DATA Description return
40h Boot fail restart
0x01-
0x7F
Boot fail restart, write in a byte to EC
and enable the timer. This command
called by BIOS and will cause the system
reboot after the byte count down to zero
if system still no reset the counter. It
could make sure the system success boot
up.
None
41h EC state notification
A0h Return core code version number One byte
A1h Return platform id ‘COMPAL’
A2h Return EEPROM Slave address One byte
A3h Return Thermal chip slave address One byte
42h Bank assign for EEPROM None
0x00-
0x07
Bank assign for EEPROM, work with
4D/4E command replace 4B/4C
command
None
43h 00h - FFh Get RAM value from EC, Host can use
this command to send address to get
OEM RAM value. The address range are
from 00h to FFh.
One byte
44h None Get project ID 0x31
45h Hook for every projects (Define by
project)
01h Check Thermal chip ID is SMSC or not 01 is Yes
00 is Not
A5h Set Wireless LAN and Blue Tooth aren’t
existence
None
A6h Set Wireless LAN is existence, Blue
Tooth is not existence
None
A7h Set Wireless LAN is not existence, Blue
Tooth is existence
None
A8h Set Wireless LAN and Blue Tooth are
existence
None
A9h Set 3G is not existence None
AAh Set 3G is existence None
ABh Return M/B ID Byte
AEh Return DVD or MP3 key
B0h Select the CPU to CMT None
B1h Select the CPU to Penryn None
C0h When system BIOS want to detect
wireless and bluetoth
None
C1h After system infrom wireless and
bluetoth existence
None
C2h Enable Modem None
C3h Disable Modem None
C4h Set UMA mode None
C5h Set Discrete mode None
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