Specifications

136 AMD Geode™ GeodeROM Functional Specification
System Services
32087C
12.1.10.10 Subfunction 09h - Get NVRAM Table Address
Description:
Returns the address for the NVRAM and media type tables, and is intended for internal usage.
Passed:
Returns:
Related Functions:
None.
Parameter Description
AX BE09h
BX 4E53h (= ‘NS’)
Parameter Description
SI Address of NVRAM map
CX Number of entries in NVRAM map
DI Address of media table
DX Number of entries in NVRAM (see Table 12-4 "NVRAM Table")
Table 12-4. NVRAM Table
Token
1
Description Width Definition
PM Power management enable 1 Bit 0 = Disable
1 = Enable
PS Suspend state 2 Bits 00 = Stop Clock
01 = 3V Suspend
10 = Suspend-to-Disk
11 = Suspend-to-RAM
TY Standby timeout 1 Byte 0000 = Disable
0001 = 5 seconds
0010 = 10 seconds
0011 = 15 seconds
0100 = 30 seconds
0101 = 45 seconds
0110 = 1 minute
0111 = 2 minutes
1000 = 5 minutes
1001 = 10 minutes
1010 = 15 minutes
1011 = 30 minutes
1100 = 45 minutes
1101 = 60 minutes
1110 = 90 minutes
1111 = 120 minutes
TS Suspend timeout 1 Byte See “Standby timeout” (TY, this table)
TI Idle timeout 1 Byte See “Standby timeout” (TY, this table)
TK Keyboard/mouse timeout 1 Byte See “Standby timeout” (TY, this table)
T1 HDD1 timeout 1 Byte See “Standby timeout” (TY, this table)
T2 HDD2 timeout 1 Byte See “Standby timeout” (TY, this table)
TF FDD timeout 1 Byte See “Standby timeout” (TY, this table)