參數(shù)資料
型號: L84302
元件分類: 通用總線功能
英文描述: L84302 Quad 100/10 Mbps 4-Port Ethernet Controller with RMON/SNMP Management Counters technical manual 4/02
中文描述: L84302四100/10 Mbps的4端口以太網(wǎng)的遠(yuǎn)程監(jiān)控控制器/ SNMP管理處的技術(shù)手冊,4月2日
文件頁數(shù): 110/128頁
文件大小: 997K
代理商: L84302
110 of 128
April, 2002
L84302 Quad 4-Port Ethernet Controller - Technical Manual
Copyright 1997-2002 by LSI Logic Corporation. All rights reserved.
5.11 Register Interface Timing Characteristics
Refer to
Figure 16
and
Figure 17
for timing diagram.
Sym.
Parameter
Limit
Unit
Conditions
Min
Typ
Max
t
91
t
92
t
93
WR Low Time
WR High Time
RD Low Time
20
20
ns
ns
ns
4 SLCK
+ 50 ns
RX Status, TX Status,
Counter 1-51, Counter
Status 1-6 registers
All other registers
RX Status, TX Status,
Counter 1-51, Counter
Status 1-6 registers
All other registers
50
ns
ns
t
94
RD High Time
3 SLCK
+ 50 ns
50
0
ns
ns
t
95
ENREGIO, REGPS[1:0],
A[7:0], BE[1:0],
CDST[15:0] Setup Time
ENREGIO, REGPS[1:0],
A[7:0], BE[1:0],
CDST[15:0] Hold Time
RD Assert to READY
Assert Delay
t
96
10
ns
t
97
4 SLCK
+ 50 ns
ns
RX Status, TX Status,
Counter 1-51, Counter
Status 1-6 registers
All other registers
RX Status, TX Status,
Counter 1-51, Counter
Status 1-6 registers
All other registers
50
ns
ns
t
98
RD Deassert to READY
Deassert Delay
3 SLCK
+ 50 ns
50
3
ns
ns
t
99
CDST[15:0], READY Hi-Z
to Active Delay
CDST[15:0] Valid to
READY Assert Delay
CDST[15:0],READYActive
to Hi-Z Delay
t
100
1
ns
t
101
3
ns
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