PM7311 pmc-sierra, PM7311 Datasheet - Page 190

• Manufacturer Part Number: PM7311
• Description: Freedm 84a1024l Assp Telecom Standard Datasheet
• Manufacturer: pmc-sierra

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2021832, Issue 2
RWB
BUSY
The indirect access control bit (RWB) selects between a configure (write) or interrogate
(read) access to the tributary control configuration RAM. Writing a ‘0’ to RWB triggers an
indirect write operation. Data to be written is taken from the SBI INSERT Tributary Indirect
Access Data Register. Writing a ‘1’ to RWB triggers an indirect read operation. The data
read can be found in the SBI INSERT Control Tributary RAM Indirect Access Data Register.
The indirect access status bit (BUSY) reports the progress of an indirect access. BUSY is set
high when a write to the SBI INSERT Tributary Indirect Access Address Register triggers an
indirect access and will stay high until the access is complete. This register should be polled
to determine when data from an indirect read operation is available in the SBI INSERT
Tributary Indirect Access Data Register or to determine when a new indirect write operation
may commence.
FREEDM 84A1024L ASSP Telecom Standard Product Data Sheet
Released
190