PM6344-1 Datasheet, PDF (244/256 Pages) PMC-Sierra, Inc – QUADRUPLE E1 FRAMER

STANDARD PRODUCT
PMC-951013
ISSUE 5
PMC-Sierra, Inc.
PM6344 EQUAD
QUADRUPLE E1 FRAMER
Table 18 - Backplane Receive Timing, MENB Input High (Figure 43)
Symbol
tSBRFPI
tHBRFPI
tPBRCLK
f1BRCLK
f2BRCLK
Description
Min Max Units
BRCLK to BRFPI Input Set-up 20
Time⁷
BRCLK to BRFPI Input Hold
20
Time⁸
BRCLK to Backplane Output
Signals Propagation Delay^9,10
BRCLK freq. - Reg 07H
HSBPSEL=0²
BRCLK freq. - Reg 07H
HSBPSEL=1²
ns
ns
50
ns
2.41 MHz
3.00 MHz
Figure 43 - Backplane Receive Timing Diagram
BRFPI
t ^t _SBRFPI
HBRFPI
BRCLK
BRPCM/BRDP[x],
BRSIG/BRDN[x],
BRFPO[x]
t
PBRCLK
Valid
231