參數(shù)資料
型號(hào)： 1893YI-10
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 網(wǎng)絡(luò)接口
英文描述： DATACOM, INTERFACE CIRCUIT, PQFP64
封裝： 10 X 10 MM, TQFP-64
文件頁數(shù)： 23/152頁
文件大?。?/td> 943K
代理商： 1893YI-10
Chapter 9
Pin Diagram, Listings, and Descriptions
ICS1893 Rev C 6/6/00
June, 2000
119
ICS1893 - Release
Copyright 2000, Integrated Circuit Systems, Inc.
All rights reserved.
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
Name
100M
Symbol
Pin
Name
Pin
No.
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
31
Input
Management Data Clock.
This pin’s description is the same as that given in Table 9-5.
MDIO
30
Input/
Output
Management Data Input/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.
Note: The signal on the 10RCLK pin is conditioned by the
RXTRI pin.
RXD0
10RD
35
10M (Serial Interface) Receive Data 0.
This pin’s description is the same as that given in Table 9-5.
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.
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