SC2200 NSC [National Semiconductor], SC2200 Datasheet - Page 67

• Manufacturer Part Number: SC2200
• Description: Thin Client On a Chip
• Manufacturer: NSC [National Semiconductor]

Revision 3.0
Signal Definitions
2.4.7
2.4.8
Signal Name
IRQ9
IOCHRDY
Signal Name
LAD3
LAD2
LAD1
LAD0
LDRQ#
LFRAME#
LPCPD#
SERIRQ
Sub-ISA Interface Signals (Continued)
Low Pin Count (LPC) Bus Interface Signals
EBGA
EBGA
AK10
AL10
AJ10
AJ11
AK9
C22
AL9
AL8
AJ9
H4
(Continued)
Ball No.
Ball No.
TEPBGA
TEPBGA
M28
AA3
K31
K28
L29
L30
L31
L28
J31
C9
Type
Type
I/O
I/O
O
O
I
I
I
Description
Interrupt 9 Request Input. Active high.
Note: If IRQ9 function is selected but not
I/O Channel Ready
Note: If IOCHRDY function is selected but
Description
LPC Address-Data. Multiplexed command,
address, bidirectional data, and cycle status.
LPC DMA Request. Encoded DMA request
for LPC interface.
Note: If LDRQ# function is selected but not
LPC Frame. A low pulse indicates the begin-
ning of a new LPC cycle or termination of a
broken cycle.
LPC Power-Down. Signals the LPC device
to prepare for power shut-down on the LPC
interface.
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
67
used, tie IRQ9 low.
not used, tie IOCHRDY high.
used, tie LDRQ# high.
not used, tie SERIRQ high.
GPIO19+INTC#
GPIO38/IRRX2
IDE_DATA6
GPIO35
GPIO34
GPIO33
GPIO32
GPIO36
GPIO37
GPIO39
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Mux
Mux