ICS1892
TSD
Chapter 9 Pin Diagram, Listings, and Descriptions
10Base-T/100BIaCseS-TX1I8nt9eg2rated PHYceiver™
9.2.4.4 MAC/Repeater Interface Pins for Link Pulse Interface
Table 9-9 lists the MAC/Repeater Interface pin descriptions for the Link Pulse Interface.
Table 9-9. MAC/Repeater Interface Pins: Link Pulse Interface
MII Pin
Name
Link
Pluse
Pin
Pin
No.
Pin
Type
Pin Description
Name
COL
–
49
50
No
Collision (Detect).
Connect For the Link Pulse Interface, this pin is a no connect. For more
information, see Table 6-3.
CRS
RXER
–
No
Carrier Sense.
Connect For the Link Pulse Interface, this pin is a no connect. For more
information, see Table 6-3.
LPRX
38
37
Output Link Pulse (Interface) Receive Error.
This pin’s description is the same as that given in Table 9-6.
RXCLK LRCLK
Output Link (Pulse Interface) Receive Clock.
The ICS1892 sources the LRCLK to the MAC/repeater. The
ICS1892 uses LRCLK to synchronize the signals on the LPRX
pin. The signal on the LRCLK pin is conditioned by RXTRI.
MDC
MDC
MDIO
–
31
30
Input
Management Data Clock.
This pin’s description is the same as that given in Table 9-6.
MDIO
Input/ Management Data Input/Output.
Output This pin’s description is the same as that given in Table 9-6.
RXD0,
RXD1,
RXD2,
RXD3
35,
34,
33,
32
No
Receive Data 0–3.
Connect For the Link Pulse Interface, these pins are a no connect. For
more information, see Table 6-3.
RXDV
–
36
No
Receive Data Valid.
Connect For the Link Pulse Interface, this pin is a no connect. For more
information, see Table 6-3.
RXER
RXTRI
LPRX
38
39
Output Link Pulse (Interface) Receive Error.
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 LTCLK
43
Link (Pulse Interface) Transmit Clock.
This pin’s description is the same as that given in Table 9-6.
TXD0,
TXD1,
TXD2,
TXD3
–
45,
46,
47,
48
No
Transmit Data 0–3.
Connect For the Link Pulse Interface, these pins are a no connect. For
more information, see Table 6-3.
ICS1892, Rev. D, 2/26/01
February 26, 2001
© 2000-2001, Integrated Circuit Systems, Inc.
All rights reserved.
117
IDT™ / ICS™ 10Base-T/100Base-TX Integrated PHYceiver™
ICS1892
117
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
