Chapter 4 signal descriptions, Chapter 4, Signal descriptions – SMSC LAN91C111 User Manual

Page 14: Datasheet

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10/100 Non-PCI Ethernet Single Chip MAC + PHY

Datasheet

Revision 1.91 (08-18-08)

14

SMSC LAN91C111 REV C

DATASHEET

Chapter 4 Signal Descriptions

Table 4.1 LAN91C111 Pin Requirements (128 Pin QFP and 1.0mm TQFP package)

FUNCTION

PIN SYMBOLS

NUMBER OF PINS

System Address Bus

A1-A15, AEN, nBE0-nBE3

20

System Data Bus

D0-D31

32

System Control Bus

RESET, nADS, LCLK, ARDY,

nRDYRTN, nSRDY, INTR0, nLDEV,

nRD, nWR, nDATACS, nCYCLE, W/nR,

nVLBUS

14

Serial EEPROM

EEDI, EEDO, EECS, EESK, ENEEP,

IOS0-IOS2

8

LEDs

nLEDA, nLEDB

2

PHY

TPO+, TPO-, TPI+, TPI-, nLNK, LBK,

nCNTRL, RBIAS

8

Crystal Oscillator

XTAL1, XTAL2

2

Power

VDD, AVDD

10

Ground

GND, AGND

12

Physical Interface (MII)

TXEN100, CRS100, COL100, RX_DV,

RX_ER, TXD0-TXD3, RXD0-RXD3,

MDI, MDO, MCLK, RX25, TX25

18

MISC

nCSOUT, X25OUT

2

TOTAL

128

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