AMD Geode SC3200 Data Book page 73

General Configuration Block
Table 4-2. Multiplexing, Interrupt Selection, and Base Address Registers (Continued)
Bit Description
21 IOCSEL (Select I/O Commands). Selects ball functions.
Ball #
F1 / D9
G3 / A8
20 Reserved. Must be set to 0.
19 AB2SEL (Select ACCESS.bus 2). Selects ball functions.
Ball #
AJ12 / N29
AL11 / M29
18 SP2SEL (Select SP2 Additional Pins). Selects ball functions.
Ball #
AH3 / D28
AG4 / C28
AJ1 / B29
H30 / AJ8
17 SP2CRSEL (Select SP2 Flow Control). Selects ball functions.
Ball #
AH4 / C30
AJ2 / C31
16 SP1SEL (Select SP1 Additional Pin). Selects ball function.
Ball #
A28 / AG1
15 RSVD (Reserved). Write to 0.
14 LPCSEL (Select LPC Bus). Selects ball functions. The LPC_ROM strap (ball D6) determines the power-on reset (POR)
state of PMR[14] and PMR[22].
Ball #
AJ11 / M28
AL10 / L31
AK10 / L30
AJ10 / L29
AL9 / L28
AK9 / K31
AJ9 / K28
AL8 / J31
13 IOCS1SEL (Select IOCS1). Selects ball functions for IOCS1# or GPIO1. Works in conjunction with PMR[23], see PMR[23]
for definition.
AMD Geode™ SC3200 Processor Data Book
0: I/O Command Signals
Name Add'l Dependencies
IOR# PMR[2] = 0
DOCR# PMR[2] = 1
IOW# PMR[2] = 0
DOCW# PMR[2] = 1
0: GPIO Signals
Name Add'l Dependencies
GPIO12 None
GPIO13 None
0: GPIO, IDE Signals
Name Add'l Dependencies
GPIO6 PMR[8] = 0
IDE_IOR1# PMR[8] = 1
GPIO9 PMR[8] = 0
IDE_IOW1# PMR[8] = 1
GPIO10 PMR[8] = 0
IDE_IORDY1 PMR[8] = 1
GPIO11 PMR[8] = 0
IRQ15 PMR[8] = 1
0: GPIO, IDE Signals
Name Add'l Dependencies
GPIO7 PMR[8] = 0
IDE_DACK1# PMR[8] = 1
GPIO8 PMR[8] = 0
IDE_DREQ1 PMR[8] = 1
0: GPIO Signal
Name Add'l Dependencies
GPIO18 None
0: GPIO Signals
Name Add'l Dependencies
GPIO32 PMR[22] = 0
GPIO33 PMR[22] = 0
GPIO34 PMR[22] = 0
GPIO35 PMR[22] = 0
GPIO36 PMR[22] = 0
GPIO37 PMR[22] = 0
GPIO38/IRRX2 PMR[22] = 0
GPIO39 PMR[22] = 0
32581C
1: GPIO Signals
Name Add'l Dependencies
GPIO14 PMR[2] = 1
Undefined PMR[2] = 0
GPIO15 PMR[2] = 1
Undefined PMR[2] = 0
1: ACCESS.bus 2 Signals
Name Add'l Dependencies
AB2C None
AB2D None
1: Serial Port Signals
Name Add'l Dependencies
DTR2#/BOUT2 PMR[8] = 0
SDTEST5 PMR[8] = 1
DCD2# PMR[8] = 0
SDTEST2 PMR[8] = 1
DSR2# PMR[8] = 0
SDTEST1 PMR[8] = 1
RI2# PMR[8] = 0
Undefined PMR[8] = 1
1: Serial Port Signals
Name Add'l Dependencies
RTS2# PMR[8] = 0
SDTEST0 PMR[8] = 1
CTS2# PMR[8] = 0
SDTEST4 PMR[8] = 1
1: Serial Port Signal
Name Add'l Dependencies
DTR1#/BOUT1 None
1: LPC Signals
Name Add'l Dependencies
LAD0 PMR[22] = 1
LAD1 PMR[22] = 1
LAD2 PMR[22] = 1
LAD3 PMR[22] = 1
LDRQ# PMR[22] = 1
LFRAME# PMR[22] = 1
LPCPD# PMR[22] = 1
SERIRQ PMR[22] = 1
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