am79c850 Advanced Micro Devices, am79c850 Datasheet - Page 87
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am79c850
Manufacturer Part Number
am79c850
Description
Supernet-r 3
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C850.pdf
(97 pages)
- Current page: 87 of 97
- Download datasheet (342Kb)
SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges
Host Interface & Buffer Memory
100
121
122
123
No.
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
Parameter
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
PD
PD
PD
PD
PD
PD
PD
PD
PD
PD
t
t
PD
PD
PD
t
PD
PD
PD
PD
PD
PD
PD
t
S
H
S
H
S
S
Parameter Description
HSREQ2–0 Setup Time to BMCLK High
HSREQ2–0 Hold Time to BMCLK High
BMCLK High to HSACK High
BMCLK High to HSACK Low
BMCLK High to RDATA High
BMCLK High to RDATA Low
BMCLK High to QCNTRL2–0 Valid
QCNTRL2–0 Invalid from BMCLK High
BMCLK High to ADDR 15–0 Enabled
BMCLK High to ADDR 15–0 Valid
BMCLK High to CSO Low
BMCLK Low to RD Low
BD 31:0, BDP 3:0, BDTAG Setup Time to RD High
BD 31:0, BDP 3:0, BDTAG Hold Time from RD High
Reserved
CSO Invalid from RD or WR High
ADDR 15:0 Invalid from RD or WR High
BMCLK Low to WR Low
ADDR 15:0 Valid to WR Low Setup Time
BMCLK Low to BD 31:0, BDP 3:0, BDTAG Enabled
BMCLK Low to BD 31:0, BDP 3:0, BDTAG Valid
BD 31:0, BDP 3:0, BDTAG Valid before WR High
Reserved
BD 31:0, BDP 3:0, BDTAG Invalid from WR High
BMCLK High to BD 31:0, BDP 3:0, BDTAG Disabled
Read Pulse Width
Write Pulse Width
ADDR 15:0 Valid to RD Low Setup Time
P R E L I M I N A R Y
SUPERNET 3
Min
15
10
15
38
37
5
5
0
0
0
4
0
0
0
7
Max
25
25
25
25
25
27
26
22
18
26
30
43
14
AMD
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
87
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