Specifications

138 AMD Geode™ GeodeROM Functional Specification
System Services
32087C
LD LPT1 mode 3 Bits 000 = Compatible
001 = PS/2 bidirectional
010 = EPP 1.7
011 = EPP 1.9
100 = ECP
101-111 = Reserved
LB LPT2 I/O port 2 Bits 00 = Disable
01 = 378
10 = 278
11 = 3BC
LQ LPT2 IRQ (only used when necessary,
depending on port mode)
2 Bits 00 = IRQ5
01 = IRQ7
10-11 = Reserved
LO LPT2 mode 3 Bits 000 = Compatible
001 = PS/2 bidirectional
010 = EPP 1.7
011 = EPP 1.9
100 = ECP
101-111 = Reserved
ID IDE controller enable 1 Bit 0 = Disable
1 = Enable
I1 Primary IDE enable (may not be available
for all controllers)
1 Bit 0 = Disable
1 = Enable
I2 Secondary IDE enable (may not be avail-
able for all controllers)
1 Bit 0 = Disable
1 = Enable
FD FDD enable 1 Bit 0 = Disable
1 = Enable
AU Audio enable 1 Bit 0 = Disable
1 = Enable
AA Audio base address 2 Bits 00 = 220
01 = 240
10 = 260
11 = 280
AI Audio IRQ 2 Bits 00 = IRQ5
01 = IRQ7
10 = IRQ9
11 = IRQ10
A1 Audio 8-bit DMA 2 Bits 00 = DMA0
01 = DMA1
10 = Reserved
11 = DMA3
A2 Audio 16-bit DMA 2 Bits 00 = Reserved
01 = DMA5
10 = DMA6
11 = DMA7
US USB Enable (may mean the device is
present or not)
1 Bit 0 = Disable
1 = Enable
UL Legacy USB on/off 1 Bit 0 = Disable
1 = Enable
Table 12-4. NVRAM Table (Continued)
Token
1
Description Width Definition