ICS1892, Rev. D, 2/26/01
February 26, 2001
116
Chapter 9
Pin Diagram, Listings, and Descriptions
ICS1892 Data Sheet
2000-2001, Integrated Circuit Systems, Inc.
All rights reserved.
RXD0
10RD
35
10M (Serial Interface) Receive Data.
This pin’s description is the same as that given in
Table 9-6
.
RXD1,
RXD2,
RXD3
–
34,
33,
32
No
Connect
Receive Data 1–3.
For the 10M Serial Interface, these pins are a no connect. For
more information, see
Table 6-2
.
RXDV
10RXDV
36
Output
10M (Serial Interface) Receive Data Valid.
The ICS1892 asserts 10RXDV to indicate to the MAC/repeater
that data is available on the MII Receive Bus (RXD[3:0]). The
ICS1892:
Asserts 10RXDV after it detects and recovers the
Start-of-Stream delimiter, /J/K/. (For the timing reference,
see
Chapter 10.5.6, “MII / 100M Stream Interface:
Synchronous Receive Timing”
.)
De-asserts 10RXDV after it detects either the End-of-Stream
delimiter (/T/R/) or a signal error.
Note:
10RXDV is synchronous with the Receive Data Clock,
10RCLK.
RXER
–
38
No
connect
Receive Error.
For the 10M Serial Interface, this pin is a no connect. For more
information, see
Table 6-2
.
RXTRI
39
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.
TXER
–
42
No
connect
Transmit Error.
For the 10M Serial Interface, this pin is a no connect. For more
information, see
Table 6-2
.
TXCLK
10TCLK
43
10M (Serial Interface) Transmit Clock.
In 10M Serial TXCLK is 10 MHz.
TXD0
10TD
45
Input
10M (Serial Interface) Transmit Data.
This pin’s description is the same as that given in
Table 9-6
.
TXD1,
TXD2,
TXD3
–
46,
47,
48
No
connect
Transmit Data 1–3.
For the 10M Serial Interface, these pins are a no connect. For
more information, see
Table 6-2
.
TXEN
10TXEN
44
Input
10M (Serial Interface) Transmit Enable.
This pin’s description is the same as that given in
Table 9-6
.
TXER
–
42
No
connect
Transmit Error.
For the 10M Serial Interface, these pins are a no connect. For
more information, see
Table 6-2
.
Table 9-8.
MAC/Repeater Interface Pins: 10M Serial Interface (
Continued
)
MII Pin
Name
10M
Serial
Pin
Name
Pin
No.
Pin
Type
Pin Description