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DME1737-NR

Super I/O with Temperature Sensing, Quiet Auto Fan and Glue Logic

SMSC -> Microchip 

Block Diagram

CLK32

CLOCKI

CLOCK

GEN

SER_IRQ

PCI_CLK

SERIAL

IRQ

LAD[3:0]

LFrame#

LDRQ#

PCI_RESET#

IO_PME_S3*

IO_PME_S5*

IO_SMI*

GP1[0:4]*, GP21*,GP22*

GP27*, GP32*,GP33*

GP36*, GP37* ,

GP4[0,2,3]*

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

nMTR0, nTRK0, InNDEX

nW GATE,nHDSEL

DRVDEN0*,nW RTPRT

nDIR, nSTEP

nDSKCHG, nDS0,

nRDATA,nW DATA

LPC

Bus Interface

Power Mgmt

General

Purpose

I/O

SMSC

Proprietary

82077

Compatible

Floppydisk

Controller with

Digital Data

Separator &

W rite Precom-

pensation

S

SMbus

M

SDA1

Isola-

tion

b

SCLK1

SDA2

Switch

u

SCLK2

s

Speaker

WDT

WDT*

Internal Bus

(Data, Address, and Control lines)

LEDs

Multi-Mode

Parallel Port

with

ChiProtect TM/FDC

MUX

(see

LPC47B27x)

High-Speed

16550A

UART

PORT 1

32 byte

Security

Key

Register

High-Speed

16550A

UART

PORT 2

PCI Reset

Outputs

Keyboard/Mouse

8042

controller

Hardware

Monitor

Power Control

and Recovery

Intruder

Detection

PD[7,0]

BUSY, SLCT, PE,

nERROR, nACK

nSTROBE, nINIT,

nSLCTIN, nALF

TXD1*, RXD1

nCTS1, nRTS1*

nDSR1, nDTR1

nDCD1, nRI1

TXD2 (IRTX)*,

RXD2 (IRRX)*

CTS2*, RTS2 *

DSR2*, DTR2*

DCD2*, RI2*

nIDE_RSTDRV*

nPCIRST_OUT[1:4]*

MCLK*, MDAT*

A20M*

nKBDRST*

KCLK*,KDAT*

nFPRST, PB_IN#

PW RGD_PS

`SLP_S3#, SLP_S5#

PW RGD_CPU ,

PW RGD_3V

n3VSB_GAT E

n3V_GATE

nRSMRST

nINTRD_IN

Note 1: This diagram does not show power and

ground connections.

Note 2: Signal names followed by an asterisk (*) are

located on multifunction pins. This diagram is

designed to show the various functions available on

the chip and should not be used as a pin layout.

Figure 1 DME1737 Block Diagram

Rev. 05-21-04

4

PRODUCT PREVIEW

SMSC DME1737

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