ICS1892
10Base-T/100Base-TX Integrated PHYceiver™
TSD
Chapter 9 Pin Diagram, Listings, and Descriptions
ICS1892 Data Sheet
Table 9-7. MAC/Repeater Interface Pins: 100M Symbol Interface (Continued)
MII Pin
Name
100M
Symbol
Pin
Pin
No.
Pin
Type
Pin Description
Name
RXD0,
RXD1,
RXD2,
RXD3
SRD0,
SRD1,
SRD2,
SRD3
35,
34,
33,
32
Symbol Receive Data 0–3.
• SRD0 is the least-significant bit and SRD3 is the
most-significant bit of the MII receive data nibble.
• While the ICS1892 asserts RXDV, the ICS1892 transfers the
receive data signals on the SRD0–SRD3 pins to the
MAC/Repeater Interface synchronously on the rising edges
of SRCLK.
RXDV
–
36
No
Receive Data Valid.
Connect For the 100M Symbol Interface, this pin is a no connect. For
more information, see Table 6-1.
RXER
RXTRI
SRD4
38
39
Output Symbol Receive Data 4.
This pin’s description is the same as that given in Table 9-6.
Input
Receive (Interface), Tri-State.
The input on this pin is from a MAC. When the signal on this pin
is logic:
• Low, the MAC indicates that it is not in a tri-state condition.
• High, the MAC indicates that it is in a tri-state condition. In
this case, the ICS1892 acts to ensure that only one PHY is
active at a time.
TXCLK
STCLK
43
Symbol Transmit Clock.
This pin’s description is the same as that given in Table 9-6. For
100Base-Tx
TXD0–3 STD0,
STD1,
45,
46,
47,
48
Input
Symbol Transmit Data 0–3.
• STD0 is the least-significant bit and STD3 is the
most-significant bit of the MII transmit data nibble received
from the MAC/repeater.
• While the ICS1892 asserts TXEN, the signals on the
STD0–3 pins are sampled by the ICS1892 synchronously on
the rising edges of STCLK.
STD2,
STD3
TXEN
TXER
–
44
42
No
Transmit Enable.
Connect For the 100M Symbol Interface, this pin is a no connect. For
more information, see Table 6-1.
STD4
Input
Symbol Transmit Data 4.
This pin’s description is the same as that given in Table 9-6.
ICS1892, Rev. D, 2/26/01
February 26, 2001
© 2000-2001, Integrated Circuit Systems, Inc.
All rights reserved.
114
IDT™ / ICS™ 10Base-T/100Base-TX Integrated PHYceiver™
ICS1892
114
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
