Specifications

120 AMD Geode™ GeodeROM Functional Specification
System Services
32087C
12.1.3.16 Subfunction 0Fh - Engage/Disengage Power Management
Description:
Passed:
Returns:
Related Functions:
None.
Parameter Description
AH 53h = APM
AL 0Fh = APM function code
BX Power device ID:
0001h = All devices power managed by APM BIOS
01xxh
1
= All devices power managed by APM BIOS
02xxh = Secondary storage
03xxh = Parallel ports
04xxh = Serial ports
05xxh = Network adapters
06xxh = PCMCIA sockets
E000h-EFFFH = OEM defined power device IDs
All other values reserved
1. xxh = Unit number (0 based). Unit number of FFh means all devices in this class.
CX 0000h = Disengage power management
0001h = Engage power management
Parameter Description
If function is successful:
CF 0 = Successful connection
If function is unsuccessful:
CF 1 = Carry flag set on error
AH Error code:
01h = Power management functionality disabled
03h = Interface not connected
09h = Unrecognized device ID
0Ah = Parameter value out of range (function code)