LAN91C100FD_0601 Datasheet, PDF (12/78 Pages) SMSC Corporation – FEAST Fast Ethernet Controller with Full Duplex Capability

FEAST Fast Ethernet Controller with Full Duplex Capability
I/O4
Bidirectional buffer with 2mA source and 4mA sink
I/O24
Bidirectional buffer with 12mA source and 24mA sink
I
Input buffer with TTL levels
IS
Input buffer with Schmitt Trigger Hysteresis
Iclk
Clock input buffer
DC levels and conditions defined in the DC Electrical Characteristics section.
Table 3.1 - LAN91C100FD Pin Requirements
FUNCTION
System Address Bus
System Data Bus
System Control Bus
Serial EEPROM
RAM Data Bus
RAM Address Bus
RAM Control Bus
Crystal Oscillator
Power
Ground
External ENDEC 10 Mbps
Physical Interface 100 Mbps
Clocks
Miscellaneous
TOTAL
PIN SYMBOLS
A1-A15, AEN, nBE0-nBE3
D0-D31
RESET, nADS, LCLK, ARDY,
nRDYRTN, nSRDY, INTR0-
INTR3, nLDEV, nRD, nWR,
nDATACS, nCYCLE, W/nR,
nVLBUS
EEDI, EEDO, EECS, EESK,
ENEEP, IOS0-IOS2
RD0-RD31
RA2-RA16
nROE, nRWE0-nRWE3,
RCVDMA, RDMAH
XTAL1, XTAL2
VDD, AVDD
GND, AGND
TXEN, TXD, CRS, COL, RXD,
TXC, RXC, LBK, nLNK,
nFSTEP, AUISEL, MIISEL
TXEN100, CRS100, COL100,
RX_DV, RX_ER, TXD0-TXD3,
RXD0-RXD3, MDI, MDO, MCLK
TX25, RX25
nCSOUT, nRXDISC
NUMBER OF PINS
20
32
17
8
32
15
7
2
19
21
12
16
2
2
205
Rev. 01-20-06
Page 12
DATASHEET
SMSC DS – LAN91C100FD Rev. D