RELEASED
PMC-Sierra, Inc.
PM9311/2/3/5 ETT1™ CHIP SET
Data Sheet
PMC-2000164
ISSUE 3
ENHANCED TT1™ SWITCH FABRIC
Figure 96. One-deep Queue for Outbound Requests
Linecard
Cell arrives from
upstream switch,
generating a request
Idle Counter
To TT1
Linecard fetches
cell from buffer
Grant received
from TT1 port
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
339