RELEASED
PM7380 FREEDM-32P672
DATA SHEET
PMC-1990262
ISSUE 5
FRAME ENGINE AND DATA LINK MANAGER 32P672
BLOCK[10:0]:
The indirect block number (BLOCK[10:0]) indicate the block to be configured
or interrogated in the indirect access.
Reserved:
The reserved bit must be set low for correct operation of the FREEDM-
32P672 device.
BRWB:
The block indirect access control bit (BRWB) selects between a configure
(write) or interrogate (read) access to the block pointer RAM. Writing a logic
zero to BRWB triggers an indirect block write operation. Data to be written is
taken from the Indirect Block Data register. Writing a logic one to BRWB
triggers an indirect block read operation. The data read can be found in the
Indirect Block Data register.
BUSY:
The indirect access status bit (BUSY) reports the progress of an indirect
access. BUSY is set high when this register is written to trigger an indirect
access, and will stay high until the access is complete. At which point, BUSY
will be set low. This register should be polled to determine when data from an
indirect read operation is available in the THDL Indirect Block Data register or
to determine when a new indirect write operation may commence.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA,INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
224
PMC [ PMC-SIERRA, INC ]
