參數(shù)資料
型號: L80227
廠商: LSI CORP
元件分類: 網(wǎng)絡(luò)接口
英文描述: 10BASE-T/100BASE-TX Ethernet Physical Layer Device (PHY)(10BASE-T/100BASE-TX 以太網(wǎng)物理層處理器)
中文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP64
封裝: LQFP-64
文件頁數(shù): 125/158頁
文件大?。?/td> 1084K
代理商: L80227
Draft 6/5/00
AC Electrical Characteristics
6-27
Copyright 1999 by LSI Logic Corporation. All rights reserved.
6.3.7 MI Serial Port Timing Characteristics
Table 6.12
shows the MI Serial Port AC timing parameters. See
Figure 6.17
for the associated timing diagram.
Figure 6.17 MI Serial Port Timing
Table 6.12
MI Serial Port Timing
Sym
Parameter
Limit
Unit
Conditions
Min
Typ
Max
t101
MDC High Time
20
ns
t102
MDC Low Time
20
ns
t103
MDIO Setup Time
10
ns
Write Bits
t104
MDIO Hold Time
10
ns
Write Bits
t105
MDC To MDIO Delay
20
ns
Read Bits
t106
MDIO Hi-Z To Active Delay
20
ns
Write-Read Bit
Transition
t107
MDIO Active To HI-Z Delay
20
ns
Read-Write Bit
Transition
t108
Frame Delimiter (Idle)
32
Clocks
Number of
consecutive MDC
clocks with MDIO = 1
MDIO
(READ)
MDC
MDIO
(WRITE)
0
ST1
ST0
REGAD0
TA1
TA0
D15
D1
D0
1
13
14
15
16
17
30
31
t
103
t
104
t
103
t
106
TA1
t
105
t
107
t
104
ST1
ST0
REGAD0
TA0
D15
D14
D0
t
101
t
102
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