SMSC LPC47M997 Block Diagram, LPC47M997, (128 QFP), Figure 1 - LPC47M997 Block Diagram

Block Diagram

CLK32

CLOCKI

SER_IRQ

PCI_CLK

LAD[3:0]

LFrame

LDRQ

PCI_RESET

LPCPD

IO_PME*

IO_SMI*

GP1[0:7]*

GP2[0:2,4:7]* GP3[0:7]*, GP4[0:3]*

GP5[0:7]*, GP6[0:1]*

SDA

SCL

VID0

VID1

VID2

VID3 12V_IN/VID4 +5V_IN +3.3V_IN +2.5V_IN +1.8V_IN +1.5V_IN

Vccp_IN

HVCC

HVSS

A0/RESET#/THERM#/

XNOR_OUT

IRRX2*

IRTX2*

J1B1, J1B2*

J2B1, J2B2*

J1X, J1Y*

J2X, J2Y*

FAN1*

FAN2*

FAN TACH1*

FAN TACH2*

LED1*

LED2*

CLOCK

2nd Infrared Port

Game Port

Fan Control

LEDs

GEN

PD[7,0]

SERIAL

Multi-Mode

Busy, Slct, PE,

IRQ

Parallel Port

ERROR, ACK

with

ChiProtectTM/

Internal Bus

FDC MUX

STROBE, INIT, SLCTIN,

LPC

(Data, Address, and Control lines)

(see LPC47B27x)

ALF

Bus Interface

TXD1, RXD1

High-Speed

CTS1, RTS1

LPC47M997

16550A

Power Mgmt

UART

DSR1, DTR1

(128 QFP)

PORT 1

DCD1, RI1

General

Purpose

TXD2 (IRTX)*,

I/O

RXD2 (IRRX)*

High-Speed

CTS2*, RTS2 *

SMBus

16550A

UART

DSR2*, DTR2*

PORT 2

DCD2*, RI2*

WDATA

MIDI_IN*

WCLOCK

MPU-401

Hardware

SMC PROPRIETARY

DIGITAL DATA

Serial Port

MIDI_OUT*

Monitoring

82077 COMPATIBLE

SEPARATOR

VERTICAL

WITH WRITE

KCLK, MCLK

FLOPPYDISK

PRECOM-

CONTROLLER CORE

PENSATION

Keyboard/Mouse

KDATA, MDATA

GateA20*

8042

RCLOCK

controller

KRESET*

P12*, P16*, P17*

RDATA

D1+

-D1

D0+

-D0

STEP,DIR, DS1*DS0,DSKCHG,

DRVDEN1*DRVDEN0*,

HDSELWGATE,

MTR1*,TRK0,MTR0, WRTPRTINDEX,

WDATARDATA,

Note 1: This diagram does not show power and ground

connections.

Note 2: Functions with "*" are located on multifunctional pins.

This diagram is designed to show the various functions

available on the chip (not pin layout).

Figure 1 - LPC47M997 Block Diagram

Rev. 01-12-07 Page 4 SMSC LPC47M997

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