SC3200 datasheet(74/447 Pages) AMD

74 / 447 page

AMD Geode™ SC3200 Processor Data Book

Signal Definitions

Revision 5.1

IRQ9

C22

AA3

Interrupt 9 Request Input. Active high.

Note:

If IRQ9 function is selected but not

used, tie IRQ9 low.

IDE_DATA6

IOCHRDY

I/O Channel Ready

Note:

If IOCHRDY function is selected but

not used, tie IOCHRDY high.

GPIO19+INTC#

3.4.7

Sub-ISA Interface Signals (Continued)

Signal Name

Ball No.

Type

Description

Mux

EBGA

TEPBGA

3.4.8

Low Pin Count (LPC) Bus Interface Signals

Signal Name

Ball No.

Type

Description

Mux

EBGA

TEPBGA

LAD3

AJ10

L29

I/O

LPC Address-Data. Multiplexed command,

address, bidirectional data, and cycle status.

GPIO35

LAD2

AK10

L30

GPIO34

LAD1

AL10

L31

GPIO33

LAD0

AJ11

M28

GPIO32

LDRQ#

AL9

L28

LPC DMA Request. Encoded DMA request

for LPC interface.

Note:

If LDRQ# function is selected but not

used, tie LDRQ# high.

GPIO36

LFRAME#

AK9

K31

LPC Frame. A low pulse indicates the begin-

ning of a new LPC cycle or termination of a

broken cycle.

GPIO37

LPCPD#

AJ9

K28

LPC Power-Down. Signals the LPC device

to prepare for power shut-down on the LPC

interface.

GPIO38/IRRX2

SERIRQ

AL8

J31

I/O

Serial IRQ. The interrupt requests are serial-

ized over a single signal, where each IRQ

level is delivered during a designated time

slot.

Note:

If SERIRQ function is selected but

not used, tie SERIRQ high.

GPIO39

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