ICS1893 Datasheet, PDF (119/152 Pages) Integrated Circuit Systems – 3.3-V 10Base-T/100Base-TX Integrated PHYceiver™

ICS1893 - Release
Chapter 9 Pin Diagram, Listings, and Descriptions
9.3.4.3 MAC/Repeater Interface Pins for 10M Serial Interface
Table 9-7 lists the MAC/Repeater Interface pin descriptions for the 10M Serial Interface.
Table 9-7. MAC/Repeater Interface Pins: 10M Serial Interface
MII Pin 100M Pin
Name Symbol No.
Pin
Name
Pin
Type
Pin Description
COL
10COL
49 Output 10M (Serial Interface) Collision (Detect).
This pin’s description is the same as that given in Table 9-5.
CRS
10CRS
50 Output 10M (Serial Interface) Carrier Sense.
This pin’s description is the same as that given in Table 9-5.
MDC
MDC
31 Input Management Data Clock.
This pin’s description is the same as that given in Table 9-5.
MDIO MDIO
30 Input/ Management Data Input/Output.
Output This pin’s description is the same as that given in Table 9-5.
RXCLK 10RCLK 38 Output 10M Receive Clock.
In 10M Serial mode, the ICS1893 sources the 10RCLK to its
MAC/repeater Interface. The 10RCLK synchronizes the data on
the 10RD0 pin between the ICS1893 and the MAC/repeater.
• The 10RCLK frequency is 10 MHz.
• The ICS1893 generates 10RCLK from the MDI data stream
using a digital PLL. When the MDI data stream terminates,
the PLL continues to operate, synchronously referenced to
the last packet received.
• The ICS1893 switches between clock sources during the
period between when 10CRS is being asserted and
10RXDV is being asserted. While the ICS1893 locks onto
the incoming data stream, a clock phase change of up to 360
degrees can occur.
• The 10RCLK aligns once per packet.
RXD0 10RD
RXD1, –
RXD2,
RXD3
Note: The signal on the 10RCLK pin is conditioned by the
RXTRI pin.
35
10M (Serial Interface) Receive Data 0.
This pin’s description is the same as that given in Table 9-5.
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.
ICS1893 Rev C 6/6/00
Copyright © 2000, Integrated Circuit Systems, Inc.
All rights reserved.
119
June, 2000