AMD Geode SC1201 - Manual (Page 48)

48 AMD Geode™ SC1200/SC1201 Processor Data Book
Signal Definitions 32579B
Table 3-7. Four-Signal/Group Multiplexing
Ball
No.
Default Alternate1 Alternate2 Alternate3
Signal Configuration Signal Configuration Signal Configuration Signal Configuration
GPIO UART2 IDE2 Internal Test
C30 GPIO7 PMR[17] = 0 and
PMR[8] = 0 RTS2# PMR[17] = 1 and
PMR[8] = 0 IDE_DACK1# PMR[17] = 0 and
PMR[8] = 1 SDTEST0 PMR[17] = 1 and
PMR[8] = 1
C31 GPIO8 CTS2# IDE_DREQ1 SDTEST4
D28 GPIO6 PMR[18] = 0 and
PMR[8] = 0 DTR2#/BOUT2 PMR[18] = 1 and
PMR[8] = 0 IDE_IOR1# PMR[18] = 0 and
PMR[8] = 1 SDTEST5 PMR[18] = 1 and
PMR[8] = 1
C28 GPIO9 DCD2# IDE_IOW1# SDTEST2
B29 GPIO10 DSR2# IDE_IORDY1 SDTEST1
Parallel Port TFT VOP FPCI Monitoring
B18 ACK# PMR[23] = 0
and
(PMR[27] = 0 and
FPCI_MON = 0) TFTDE (PMR[23] = 1 and
PMR[15] = 0) and
(PMR[27] = 0 and
FPCI_MON = 0) VOPCK (PMR[23] = 1 and
PMR[15] = 1) and
(PMR[27] = 0 and
FPCI_MON = 0) FPCI_CLK PMR[23] = 0
and
(PMR[27] = 1 or
FPCI_MON = 1)
D22 AFD#/
DSTRB# TFTD2 VOPD1 INTR_O
B17 BUSY/
WAIT# TFTD3 VOPD2 F_C/BE1#
D21 ERR# TFTD4 VOPD3 F_C/BE0#
B21 INIT# TFTD5 VOPD4 SMI_O
C21 PD0 TFTD6 VOPD5 F_AD0
A21 PD1 TFTD7 VOPD6 F_AD1
D20 PD2 TFTD8 VOPD7 F_AD2
A20 PD6 TFTD1 VOPD0 F_AD6
Three-Signal/Group Multiplexing (shown here for interface clarification)
C20 PD3 PMR[23] = 0
and
(PMR[27] = 0 and
FPCI_MON = 0) TFTD9 PMR[23] = 1
and
(PMR[27] = 0 and
FPCI_MON = 0) --- F_AD3 PMR[23] = 0
and
(PMR[27] = 1 or
FPCI_MON = 1)
C18 PD4 TFTD10 F_AD4
C19 PD5 TFTD11 F_AD5
A18 PD7 TFTD13 F_AD7
D17 PE TFTD14 F_C/BE2#
C17 SLCT TFTD15 F_C/BE3#
B20 SLIN#
/ASTRB# TFTD16 F_IRDY
A22 STB#/
WRITE# TFTD17 F_FRAME#