AMD Geode SC1200 Data Book page 60

32579B
3.4.9 Low Pin Count (LPC) Bus Interface Signals
Signal Name Ball No.
LAD3 L29
LAD2 L30
LAD1 L31
LAD0 M28
LDRQ# L28
LFRAME# K31
LPCPD# K28
SERIRQ J31
60
Type Description
I/O LPC Address-Data. Multiplexed command, address,
bidirectional data, and cycle status.
I LPC DMA Request. Encoded DMA request for LPC
interface.
Note: If LDRQ# function is selected but not used, tie
LDRQ# high.
O LPC Frame. A low pulse indicates the beginning of a
new LPC cycle or termination of a broken cycle.
O LPC Power-Down. Signals the LPC device to prepare for
power shutdown on the LPC interface.
I/O Serial IRQ. The interrupt requests are serialized 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.
AMD Geode™ SC1200/SC1201 Processor Data Book
Signal Definitions
Mux
GPIO35
GPIO34
GPIO33
GPIO32
GPIO36
GPIO37
GPIO38/IRRX2
GPIO39