PM8611-BIAP PMC [PMC-Sierra, Inc], PM8611-BIAP Datasheet - Page 115

• Manufacturer Part Number: PM8611-BIAP
• Manufacturer: PMC [PMC-Sierra, Inc]

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010883, Issue 2
Register 041H: OSTT Tributary Translator Control RAM Indirect Access Control Register
RWB
HST_ADDR_ERR
BUSY
Bit
Bit 15-8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
The indirect access control bit (RWB) selects between a configure (write) or interrogate
(read) access to the tributary translator control RAM. Writing a ‘0’ to RWB triggers an
indirect write operation. Data to be written is taken from the Tributary Translator Control
RAM Indirect Access Data Register. Writing a ‘1’ to RWB triggers an indirect read
operation. The data read can be found in the Tributary Translator Control RAM Indirect
Access Data.
When set following a host read this bit indicates that an illegal host access was attempted. An
illegal host access occurs when an attempt is made to access an out of range tributary. Out of
range tributaries accesses occur when SBI[2:0] is not in the range 1-4, SPE[1:0] is not in the
range 1-3 and TRIB[4:0] is not in the range 1-28 for T1s, not in the range 1-21 for E1s and
not equal to 1 for the remaining tributary types. This bit is cleared when this register is read.
The indirect access status bit (BUSY) reports the progress of an indirect access. BUSY is set
high when a write to the Tributary Translator Control RAM Indirect Access Control 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 Indirect
Tributary Translator Control RAM Indirect Access Data register or to determine when a new
indirect write operation may commence.
Type
R
R
R
R
R
R
R
R/W
R
Function
Unused
BUSY
HST_ADDR_ERR
Unused
Unused
Unused
Unused
RWB
Unused
SBSLITE™ Telecom Standard Product Data Sheet
Default
0
0
0
0
0
0
0
0
0
Preliminary
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