PMC-Sierra, Inc.
PM5356
S/UNI-622-MAX
DATASHEET
S/UNI-622-MAX
PMC-1980589
ISSUE 5
SATURN USER NETWORK INTERFACE (622-MAX)
9.4
ATM (UTOPIA) System Interface
Pin Name
Type
Pin
No.
Function
SYSSEL
Input
AA23
The system interface select (SYSSEL) pin selects between the
16-bit UTOPIA Level 2 mode and the 8-bit UTOPIA Level 3
mode of the system side interfaces for ATM.
When tied low, the 16-bit Level 2 mode is enabled. When tied
high, the 8-bit Level 3 mode is enabled.
This pin setting affects the pin definitions of the system interface
bus and may be overridden by software in the RUL3 and TUL3
registers.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
23
PMC [ PMC-SIERRA, INC ]
