PM7340 S/UNI-IMA-8
PRELIMINARY
INVERSE MULTIPLEXING OVER ATM
DATA SHEET
PMC-2001723
ISSUE 3
INVERSE MULTIPLEXING OVER ATM
MEM_SE RDAT Memory Table
LECT
Address Range
0x0A
0x0B-
0x0C
RDAT TC Context Memory
Reserved
0x000-0x007
N/A
0x0D
Receive ATM Congestion
Count Register
0x0E-
0x0F
Reserved
MEM_RWB:
The memory indirect access control bit (MEM_RWB) selects between a
configure (write) or interrogate (read) access to the RDAT internal memory.
Writing a logic 0 to MEM_RWB triggers an indirect write operation. Data to be
written is taken from the Indirect Memory Data registers. Writing a logic 1 to
MEM_RWB triggers an indirect read operation. The read data can be found in
the Indirect Memory Data registers. The address within a memory table can
be found in the Indirect Memory Address register.
MEM_BUSY:
The indirect memory access status bit (MEM_BUSY) reports the progress of
an indirect access A write to the Indirect Memory Command register triggers
an indirect access and sets the MEM_BUSY bit to a logic 1, MEM_BUSY will
remain logic 1 until the access is complete. This register should be polled to
determine either: (1) when data from an indirect read operation is available in
the Indirect Memory Data registers or (2) when a new indirect write operation
may commence.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
216
PMC [ PMC-SIERRA, INC ]
