PMC-Sierra, Inc.
PRELIMINARY
PM5381 S/UNI-2488
DATASHEET
PMC-2000489
ISSUE 1
SATURN USER NETWORK INTERFACE FOR 2488 MBIT/S
19
A.C. TIMING CHARACTERISTICS
Table 21: Receive System Interface Timing (Figure 28)
Symbol
Description
Min
60
Max
Units
MHz
ns
f
RFCLK Frequency
104
RFCLK
tHI
RFCLK HI Pulse Width
RFCLK LO pulse Width
RENB Set-up time to RFCLK
3.85
3.85
2
RFCLK
tLO
tS
ns
RFCLK
ns
RENB
tH
RENB Hold time to RFCLK
0.5
ns
RENB
tP
tP
tP
tP
tP
tP
tP
tP
RFCLK High to RCA/RVAL Valid
RFCLK High to RSOC/RSOP Valid
RFCLK High to REOP Valid
RFCLK High to RPRTY Valid
RFCLK High to RERR Valid
RFCLK High to RSX Valid
1
1
1
1
1
1
1
1
5
5
5
5
5
5
5
5
ns
ns
ns
ns
ns
ns
ns
ns
RVAL
RSOP
REOP
RPRTY
RERR
RSX
RFCLK High to RDAT[31:0] Valid
RFCLK High to RMOD[1:0] Valid
RDAT
RMOD
Proprietary and Confidentail to PMC-Sierra Inc., and for its Customer’s Internal Use
457
PMC [ PMC-SIERRA, INC ]
