am79c850 Advanced Micro Devices, am79c850 Datasheet - Page 90
am79c850
Manufacturer Part Number
am79c850
Description
Supernet-r 3
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C850.pdf
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SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges
External PHY Interface Timing
SWITCHING WAVEFORMS
90
126
127
130
131
No.
AMD
Parameter
RCU, RCL)
XCU, XCL)
Symbol
(R0–R7,
(X0–X7,
t
t
PD
PD
t
t
LSCLK
BCLK
S
H
R-Bus
X-Bus
Parameter Description
BCLK High to X–Bus (X0–7, XCU, XCL) Valid
X–Bus (X0–7, XCU, XCL) Invalid from BCLK High
R0–7, RCU, RCL Setup Time to LSCLK Low
R0–7, RCU, RCL Hold Time to LSCLK Low
126
Figure 38. PHY Interface Timings
P R E L I M I N A R Y
SUPERNET 3
130
131
127
Min
10
6
5
Max
35
19574A-39
Unit
ns
ns
ns
ns
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