參數(shù)資料
型號(hào): 84302
廠商: LSI Corporation
英文描述: 4-Port Fast Ethernet Controller( 4端口快速以太網(wǎng)控制器)
中文描述: 4端口快速以太網(wǎng)控制器(4端口快速以太網(wǎng)控制器)
文件頁數(shù): 86/96頁
文件大?。?/td> 826K
代理商: 84302
84302 4-Port
Fast Ethernet Controller
4-86
MD400171/C
MANAGEMENT INTERFACE (MI) TIMING CHARACTERISTICS
Refer To Figure 19 For Timing Diagram
LIMIT
TYP
SYM
PARAMETER
MIN
MAX
UNIT
CONDITIONS
t
111
MDC Cycle Time
See MI Command/Status
0 Register Definition Table
t
112
t
113
t
114
t
115
t
116
MDC Duty Cycle
40
60
%
MDC to MDIO Delay
50
nS
Write Bits
MDIO Setup Time
20
nS
Read Bits
MDIO Hold Time
0
nS
Read Bits
MDIO Active to Hi-Z
Delay
50
nS
Write-Read Bit Transition
t
117
MDIO Hi-Z to Active
Delay
50
nS
Read-Write Bit Transition
Figure 19. Management Interface (MI) Timing
MDIO
(READ)
t112
MDC
MDIO
(WRITE)
0
13
1
14
15
30
17
16
31
t112
D15
D0
D14
TA0
t115
t117
t116
113
t
REGAD0
ST1
ST0
TA0
TA1
D15
D1
D0
ST0
ST1
REGAD0
TA1
113
t
t111
t114
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