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PMC-Sierra, Inc.
PM5349 S/UNI-QUAD
DATASHEET
PMC-971239 ISSUE 6 SATURN USER NETWORK INTERFACE (155-QUAD)
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
234
18.3
ATM System Interface Timing
Table 18: Transmit ATM System Interface Timing (Figure 27)
Symbol Description Min Max Units
f
TFCLK
TFCLK Frequency 50 MHz
D
TFCLK
TFCLK Duty Cycle 40 60 %
tS
TENB
TENB Set-up time to TFCLK 3 ns
tH
TENB
TENB Hold time to TFCLK 0 ns
tS
TADR
TADR[4:0] Set-up time to TFCLK 3 ns
tH
TADR
TADR[4:0] Hold time to TFCLK 0 ns
tS
TDAT
TDAT[15:0] Set-up time to TFCLK 3 ns
tH
TDAT
TDAT[15:0] Hold time to TFCLK 0 ns
tS
TPRTY
TPRTY Set-up time to TFCLK 3 ns
tH
TPRTY
TPRTY Hold time to TFCLK 0 ns
tS
TSOC
TSOC Set-up time to TFCLK 3 ns
tH
TSOC
TSOC Hold time to TFCLK 0 ns
tP
DTCA
TFCLK High to DTCA[4:1] Valid 1 12 ns
tP
TCA
TFCLK High to TCA Valid 1 12 ns
tZ
TCA
TFCLK High to TCA Tri-state 1 10 ns
tZB
TCA
TFCLK High to TCA Driven 0 ns