
AMD Geode SC1200/SC1201 Processor Data Book
35
Signal Definitions
32579B
N15
VSS
GND
---
N16
VSS
GND
---
N17
VSS
GND
---
N18
VCORE
PWR
---
N19
VCORE
PWR
---
N28
VSS
GND
---
N29
GPIO12
I/O
(PU22.5)
INAB,
O8/8
VIO
PMR[19] = 0
AB2C
I/O
(PU22.5)
INAB,
OD8
PMR[19] = 1
N30
AB1D
I/O
(PU22.5)
INAB,
OD8
VIO
(PMR[23] = 1 and
PMR[15] = 1)
GPIO1
I/O
(PU22.5)
INT, O3/5
PMR[15] = 0 and
PMR[13] = 0
IOCS1#
O
O3/5
PMR[15] = 0 and
PMR[13] = 1
N31
AB1C
I/O
(PU22.5)
INAB,
OD8
VIO
(PMR[23] = 1 and
PMR[15] = 1)
GPIO20
I/O
(PU22.5)
INT, O3/5
PMR[15] = 0 and
PMR[7] = 0
DOCCS#
O
O3/5
PMR[15] = 0 and
PMR[7] = 1
P1
AD4
I/O
INPCI,
OPCI
VIO
Cycle Multiplexed
A4
O
OPCI
P2
IDE_CS1#
O
O1/4
VIO
PMR[24] = 0
TFTDE
O
O1/4
PMR[24] = 1
P3
AD1
I/O
INPCI,
OPCI
VIO
Cycle Multiplexed
A1
O
OPCI
P4
VCORE
PWR
---
P13
VCORE
PWR
---
P14
VCORE
PWR
---
P15
VSS
GND
---
P16
VSS
GND
---
P17
VSS
GND
---
P18
VCORE
PWR
---
P19
VCORE
PWR
---
P28
VCORE
PWR
---
P29
SDATA_OUT
O
OAC97
VIO
---
TFT_PRSNT
I
(PD100)
INSTRP
VIO
P30
SYNC
O
OAC97
VIO
---
CLKSEL3
I
(PD100)
INSTRP
P31
AC97_CLK
O
O2/5
VIO
PMR[25] = 1
R1
VSS
GND
---
R2
VSS
GND
---
Ball
No.
Signal Name
I/O
(PU/PD)
Buffer1
Type
Power
Rail
Configuration
R3
VSS
GND
---
R4
VSS
GND
---
R13
VSS
GND
---
R14
VSS
GND
---
R15
VSS
GND
---
R16
VSS
GND
---
R17
VSS
GND
---
R18
VSS
GND
---
R19
VSS
GND
---
R28
VSS
GND
---
R29
VSS
GND
---
R30
VSS
GND
---
R31
VSS
GND
---
T1
VCORE
PWR
---
T2
VCORE
PWR
---
T3
VCORE
PWR
---
T4
VCORE
PWR
---
T13
VSS
GND
---
T14
VSS
GND
---
T15
VSS
GND
---
T16
VSS
GND
---
T17
VSS
GND
---
T18
VSS
GND
---
T19
VSS
GND
---
T28
VCORE
PWR
---
T29
VCORE
PWR
---
T30
VCORE
PWR
---
T31
VCORE
PWR
---
U1
AD0
I/O
INPCI,
OPCI
VIO
Cycle Multiplexed
A0
O
OPCI
U2
IDE_ADDR2
O
O1/4
VIO
PMR[24] = 0
TFTD4
O
O1/4
PMR[24] = 1
U3
AD2
I/O
INPCI,
OPCI
VIO
Cycle Multiplexed
A2
O
OPCI
U4
VCORE
PWR
---
U13
VSS
GND
---
U14
VSS
GND
---
U15
VSS
GND
---
U16
VSS
GND
---
U17
VSS
GND
---
U18
VSS
GND
---
U19
VSS
GND
---
U28
VCORE
PWR
---
U29
AC97_RST#
O
O2/5
VIO
FPCI_MON = 0
F_STOP#
O
O2/5
FPCI_MON = 1
Ball
No.
Signal Name
I/O
(PU/PD)
Buffer1
Type
Power
Rail
Configuration