5.1 Physical Interface
Table 5.1 Physical Layer Electrical Requirements (3/3)
d) Receiver Specifications
Units
Nom
Min
Max
Comments
Z
diffRX,
RX Pair Differential
Impedance
Ohm
85
115
Z
s-eRX,
RX Single-Ended
Impedance
Ohm
40
e) OOB Specifications
Units
Nom
Min
Max
Comments
V
thresh,
OOB Signal Detection
Threshold
mVppd
100 50
200
UI
OOB,
UI During OOB Signaling
ps 666.67 646.67 686.67
COMINIT/COMRESET
and
COMWAKE
Transmit Burst Length
UI
OOB
160
COMINIT/COMRESET
Transmit Gap Length
UI
OOB
480
COMWAKE
Transmit Gap Length
UI
OOB
160
Units
May
detect
Shall
detect
Shall not
detect
Comments
COMWAKE
Gap Detection Windows
ns
55
≤
T
< 175
101.3
≤
T
< 112
T < 55 or
≥
175
COMINIT/COMRESET
Gap Detection Windows
ns
175
≤
T
< 525
304
≤
T
< 336
T < 175 or
≥
525
C141-E249
5-9
Содержание MHW2040BS
Страница 1: ...C141 E249 01EN MHW2120BS MHW2100BS MHW2080BS MHW2060BS MHW2040BS DISK DRIVES PRODUCT MANUAL ...
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Страница 18: ...Contents 6 5 1 Cache operation 6 20 Glossary GL 1 Acronyms and Abbreviations AB 1 Index IN 1 xiv C141 E249 ...
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Страница 86: ...Interface Figure 5 2 Example of the circuit for driving Ready LED 5 12 C141 E249 ...
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