
PRELIMINARY
INVERSE MULTIPLEXING OVER ATM
PM7340 S/UNI-IMA-8
DATA SHEET
PMC-2001723
ISSUE 3
INVERSE MULTIPLEXING OVER ATM
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
6
UTOPIA L2 receive slave can also appear as a single port with the logical port
provided as a prepend or in the HEC/UDF field.
ATM transmit interface supports 8- and 16-bit UTOPIA L2 and Any-PHY cell
interfaces at clock rates up to 52 MHz.
Each link configured for cell delineation or each IMA group appears as a PHY
port on the Any-PHY and UTOPIA L2 bus.
Any-PHY transmit slave appears as an 8-port multi-PHY. The PHY-ID of each
cell is identified in the in-band address.
UTOPIA L2 transmit slave appears as an 8-port multi-PHY.
Seamlessly interconnects to PMC-Sierra’s PM7326 S/UNI-APEX ATM/Packet
Traffic Manager and Switch and PM7324 S/UNI-ATLAS ATM layer device.
Loopback and Diagnostic Features
Supports UTOPIA L2/Any-PHY Loopback (global loopback– where all cells
received on the UTOPIA L2 / Any-PHY interface are looped back out)
Supports Line Side Loopback (global loopback– where all data received on
the line side is looped back out)
Supports the capability to trace ICP cells for any group
Software
The S/UNI-IMA device driver, written in ANSI C, provides a well-defined
Application Programming Interface (API) for use by application software. Low
level utility functions are also provided for diagnostics and debugging
purposes. Software wrappers are used for RTOS-related functions making the
S/UNI-IMA device driver portable to any Real Time Operating System (RTOS)
and hardware environment. The S/UNI-IMA device driver is compatible
across the S/UNI-IMA family of devices.
Packaging
Implemented in low power, 0.18 micron, 1.8V CMOS technology with TTL
compatible inputs and outputs.