ICS1892 Integrated Circuit Systems, ICS1892 Datasheet - Page 114
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ICS1892
Manufacturer Part Number
ICS1892
Description
10Base-T/100Base-TX Integrated PHYceiver
Manufacturer
Integrated Circuit Systems
Datasheet
1.ICS1892.pdf
(148 pages)
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ICS1892, Rev. D, 2/26/01
Table 9-7. MAC/Repeater Interface Pins: 100M Symbol Interface (Continued)
RXD0,
RXD1,
RXD2,
RXD3
RXDV
RXER
RXTRI
TXCLK
TXD0–3
TXEN
TXER
MII Pin
Name
ICS1892 Data Sheet
SRD0,
SRD1,
SRD2,
SRD3
–
SRD4
STCLK
STD0,
STD1,
STD2,
STD3
–
STD4
Symbol
Name
100M
Pin
No.
Pin
35,
34,
33,
45,
46,
47,
32
36
38
39
43
48
44
42
© 2000-2001, Integrated Circuit Systems, Inc.
All rights reserved.
Connect
Connect
Output
Type
Input
Input
Input
Pin
No
No
Symbol Receive Data 0–3.
Receive Data Valid.
For the 100M Symbol Interface, this pin is a no connect. For
more information, see
Symbol Receive Data 4.
This pin’s description is the same as that given in
Receive (Interface), Tri-State.
The input on this pin is from a MAC. When the signal on this pin
is logic:
Symbol Transmit Clock.
This pin’s description is the same as that given in
100Base-Tx
Symbol Transmit Data 0–3.
Transmit Enable.
For the 100M Symbol Interface, this pin is a no connect. For
more information, see
Symbol Transmit Data 4.
This pin’s description is the same as that given in
•
•
•
•
•
•
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.
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.
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.
114
Chapter 9 Pin Diagram, Listings, and Descriptions
Table
Table
Pin Description
6-1.
6-1.
February 26, 2001
Table
Table
Table
9-6. For
9-6.
9-6.
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