ICS1892 Datasheet, PDF (26/148 Pages) Integrated Circuit Systems – 10Base-T/100Base-TX Integrated PHYceiver

ICS1892 Data Sheet
Chapter 6 Interface Overviews
Table 6-1 lists the pin mappings for the ICS1892 100M Symbol Interface mode.
Table 6-1. Pin Mappings for 100M Symbol Interface Mode
Default
10M / 100M
MII Pin Names
MAC/Repeater Interface Pin Mappings, Configured for
100M Symbol Interface Mode
COL
No connect. [Because the MAC/repeater sources both active and ‘idle’ data, a PHY
cannot distinguish between an active and idle transmission channel (that is, to a PHY
the transmit channel always appears active). Therefore, a PHY cannot accurately
detect a collision.]
CRS
SCRS
LSTA
SD
MDC
MDC
MDIO
MDIO
RXCLK
SRCLK
RXD0
SRD0
RXD1
SRD1
RXD2
SRD2
RXD3
SRD3
RXDV
No connect. (Data exchanged between the MAC/repeater and a PHY is not framed in
the 100M Symbol Interface mode. Therefore, RXDV has no meaning.)
RXER
SRD4
TXCLK
STCLK
TXD0
STD0
TXD1
STD1
TXD2
STD2
TXD3
STD3
TXEN
No connect. (100Base-TX operations require continuous transmission of data.
Therefore, the MAC/repeater is responsible for sourcing IDLE symbols when it is not
transmitting data.)
TXER
STD4
ICS1892, Rev. D, 2/26/01
© 2000-2001, Integrated Circuit Systems, Inc.
All rights reserved.
26
February 26, 2001