AMD Geode SC1201 - Manual (Page 47)

AMD Geode™ SC1200/SC1201 Processor Data Book 47
Signal Definitions 32579B
Table 3-6. Three-Signal/Group Multiplexing
Ball No.
Default Alternate1 Alternate2
Signal Configuration Signal Configuration Signal Configuration
Sub-ISA Sub-ISA 1 GPIO
D9 IOR# PMR[21] = 0 and
PMR[2] = 0 DOCR# PMR[21] = 0 and
PMR[2] = 1 GPIO14 PMR[21] = 1 and
PMR[2] = 1
A8 IOW# DOCW# GPIO15
GPIO AC97 FPCI Monitoring
V31 GPIO16 PMR[0] = 0 and
FPCI_MON = 0 PC_BEEP PMR[0] = 1 = 0 and
FPCI_MON = 0 F_DEVSEL FPCI_MON = 1
GPIO PCI 2 Sub-ISA
C9 GPIO19 PMR[9] = 0 and
PMR[4] = 0 INTC# PMR[9] = 0 and
PMR[4] = 1 IOCHRDY PMR[9] = 1 and
PMR[4] = 1
GPIO Sub-ISA TFT 3
A10 GPIO17 (PMR[23] = 0 and
PMR[5] = 0) or
(PMR[23] = 1 and
PMR[15] = 1 and
PMR[5] = 0) IOCS0# (PMR[23] = 0 and
PMR[5] = 1) or
(PMR[23] = 1 and
PMR[15] = 1 and
PMR[5] = 1) TFTDCK PMR[23] = 1 and
PMR[15] = 0
A9 GPIO20 (PMR[23] = 0 and
PMR[7] = 0) or
(PMR[23] = 1 and
PMR[15] = 1 and
PMR[7] = 0) DOCCS# (PMR[23] = 0 and
PMR[7] = 1) or
(PMR[23] = 1 and
PMR[15] = 1 and
PMR[7] = 1) TFTD0 PMR[23] = 1 and
PMR[15] = 0
D10 GPIO1 (PMR[23] = 0 and
PMR[13] = 0) or
(PMR[23] = 1 and
PMR[15] = 1 and
PMR[13] = 0) IOCS1# (PMR[23] = 0 and
PMR[13] = 1) or
(PMR[23] = 1 and
PMR[15] = 1 and
PMR[13] = 1) TFTD12 PMR[23] = 1 and
PMR[15] = 0
AB1 GPIO Sub-ISA
N31 AB1C PMR[23] = 0 or
(PMR[23] = 1 and
PMR[15] = 1) GPIO20 PMR[23] = 1 and
PMR[15] = 0 and
PMR[7] = 0 DOCCS# PMR[23] = 1 and
PMR[15] = 0 and
PMR[7] = 1
N30 AB1D PMR[23] = 0 or
(PMR[23] = 1 and
PMR[15] = 1) GPIO1 PMR[23] = 1 and
PMR[15] = 0 and
PMR[13] = 0 IOCS1# PMR[23] = 1 and
PMR[15] = 0 and
PMR[13] = 1
GPIO UART2 IDE2
AJ8 GPIO11 PMR[18] = 0 and
PMR[8] = 0 RI2# PMR[18] = 1 and
PMR[8] = 0 IRQ15 PMR[18] = 0 and
PMR[8] = 1
Internal Test TFT Internal Test
V30 GXCLK (PMR[29] = 0 and
PMR[23] = 0) or
(PMR[23] = 1 and
PMR[15] = 1) FP_VDD_ON PMR[23] = 1 and
PMR[15] = 0 TEST3 PMR[29] = 1 and
PMR[23] = 0
1. The combination of PMR[21] = 1 and PMR[2] = 0 is undefined and should not be used.
2. The combination of PMR[9] = 1 and PMR[4] = 0 is undefined and should not be used.
3. These TFT outputs are reset to 0 by POR# if the TFT_PRSNT strap is pulled high or PMR[10] = 0. This relates to signals TFTD[17:0],
TFTDE, TFTDCK.