S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
For a read operation, a read command is issued using the SDRAM DIAG READ CMD
registers. This command transfers data from the SDRAM into the internal cell buffer. When the
command is complete as indicated by the RDBUSY bit in the command register, the data may
be read out of the cell buffer using the SDRAM DIAG Burst RAM indirect access.
Note that there is no CRC protection for data in diagnostic mode.
By providing both Read Command registers and write command registers, a back-to-back
read/write access may be performed to the SDRAM.
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
290
PMC [ PMC-SIERRA, INC ]
