參數(shù)資料
型號: 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): 44/152頁
文件大小: 943K
代理商: 1893YI-10
ICS1893 Rev C 6/6/00
June, 2000
138
Chapter 10
DC and AC Operating Conditions
ICS1893 Data Sheet - Release
Copyright 2000, Integrated Circuit Systems, Inc.
All rights reserved.
10.5.12
MII / 100M Stream Interface: Transmit Latency
Table 10-19 lists the significant time periods for the MII / 100 Stream Interface transmit latency. The time
periods consist of timings of signals on the following pins:
TXEN
TXCLK
TXD (that is, TXD[3:0])
TP_TX (that is, TP_TXP and TP_TXN)
Figure 10-13 shows the timing diagram for the time periods.
The IEEE maximum is 18 bit times.
Figure 10-13.
MII / 100M Stream Interface Transmit Latency Timing Diagram
Table 10-19.
MII / 100M Stream Interface Transmit Latency
Time
Period
Parameter
Conditions
Min.
Typ.
Max.
Units
t1
TXEN Sampled to MDI Output of First
Bit of /J/
MII mode
2.8
3
Bit times
t2
TXD Sampled to MDI Output of First
Bit of /J/
100M Stream Interface
6.1
7
Bit times
TXEN
TXCLK
TXD
TP_TX
Shown
unscrambled.
t1
t2
Preamble /K/
Preamble /J/
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