ICS1892
10Base-T/100Base-TX Integrated PHYceiver™
TSD
Chapter 6 Interface Overviews
ICS1892 Data Sheet
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
SD
LSTA
MDC
MDC
MDIO
RXCLK
RXD0
RXD1
RXD2
RXD3
RXDV
MDIO
SRCLK
SRD0
SRD1
SRD2
SRD3
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
TXCLK
TXD0
TXD1
TXD2
TXD3
TXEN
SRD4
STCLK
STD0
STD1
STD2
STD3
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
February 26, 2001
© 2000-2001, Integrated Circuit Systems, Inc.
All rights reserved.
26
IDT™ / ICS™ 10Base-T/100Base-TX Integrated PHYceiver™
ICS1892
26
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
