10/100 Non-PCI Ethernet Single Chip MAC + PHY
Datasheet
Chapter 4 Signal Descriptions
Table 4.1 - LAN91C111 Pin Requirements (128 Pin QFP and 1.0mm TQFP package)
FUNCTION
System Address Bus
System Data Bus
PIN SYMBOLS
A1-A15, AEN, nBE0-nBE3
D0-D31
RESET, nADS, LCLK, ARDY,
nRDYRTN, nSRDY, INTR0,
nLDEV, nRD, nWR, nDATACS,
nCYCLE, W/nR, nVLBUS
NUMBER OF PINS
20
32
14
System Control Bus
Serial EEPROM
EEDI, EEDO, EECS, EESK,
8
ENEEP, IOS0-IOS2
LEDs
PHY
nLEDA, nLEDB
2
8
TPO+, TPO-, TPI+, TPI-, nLNK,
LBK, nCNTRL, RBIAS
Crystal Oscillator
Power
Ground
XTAL1, XTAL2
VDD, AVDD
GND, AGND
TXEN100, CRS100, COL100,
RX_DV, RX_ER, TXD0-TXD3,
RXD0-RXD3, MDI, MDO,
MCLK, RX25, TX25
2
10
12
18
Physical Interface (MII)
MISC
nCSOUT, X25OUT
2
TOTAL
128
SMSC LAN91C111 Rev. B
Page 13
Rev. 1.4 (12-12-03)
DATASHEET
SMSC [ SMSC CORPORATION ]
