Super I/O with LPC Interface with FIR and Consumer IR Support

Rev. 11-10-04

4

SMSC SIO1000

PRODUCT PREVIEW

Block Diagram

Figure 1 SIO1000 Block Diagram

TXD1, nRTS1, nDTR1

SER_IRQ

PCI_CLK

Vcc Vss

IO_PME#

Denotes Multifunction Pins

IRTX2, IRMODE*

IRRX2, IRRX3*

SERIAL

IRQ

LPC BUS

INTERFACE

CLOCK

GEN

CLOCKI

SMI PME WDT

*

16C550

COMPATIBLE

SERIAL

PORT 1

nCTS1, RXD1,

nDSR1, nDCD1, nRI1

CONFIGURATION

REGISTERS

GENERAL

PURPOSE

I/O

GP10, GP11,

GP12*, GP13*,

GP14*,

GP23*,

GP4[0:7]

MULTI-MODE

PARALLEL

PORT

PD[0:7],

BUSY, SLCT,

PE, nERROR, nACK

nSLCTIN, nALF

nINIT, nSTROBE

CONTROL, ADDRESS, DATA

LAD0

LAD1

LAD2

LAD3

LFRAME#

LDRQ#

LPCPD#

PCI_RESET#

ACPI

BLOCK

IO_SMI#*

INFRARED

INTERFACE

(IrCC 2.0)

CLKRUN#

IRQIN1*, IRQIN2*

INFRARED

INTERFACE

(CIRCC2)

CIRTX*

CIRRX*

CLKI32