ICS1892 Datasheet, PDF (116/148 Pages) Integrated Circuit Systems – 10Base-T/100Base-TX Integrated PHYceiver

ICS1892 Data Sheet
Chapter 9 Pin Diagram, Listings, and Descriptions
Table 9-8. MAC/Repeater Interface Pins: 10M Serial Interface (Continued)
MII Pin 10M
Pin
Pin
Name Serial No. Type
Pin
Name
Pin Description
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,
No Receive Data 1–3.
33, Connect For the 10M Serial Interface, these pins are a no connect. For
32
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 Receive Error.
connect 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 Transmit Error.
connect 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,
No Transmit Data 1–3.
47, connect For the 10M Serial Interface, these pins are a no connect. For
48
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 Transmit Error.
connect For the 10M Serial Interface, these pins are a no connect. For
more information, see Table 6-2.
ICS1892, Rev. D, 2/26/01
© 2000-2001, Integrated Circuit Systems, Inc.
All rights reserved.
116
February 26, 2001