PM8611-BIAP PMC [PMC-Sierra, Inc], PM8611-BIAP Datasheet - Page 113
PM8611-BIAP
Manufacturer Part Number
PM8611-BIAP
Description
Manufacturer
PMC [PMC-Sierra, Inc]
Datasheet
1.PM8611-BIAP.pdf
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Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010883, Issue 2
Register 03AH: ISTT Tributary Translator Control RAM Indirect Access Data Register
JUST_REQ_EN
TVT
Bit
Bit 2-15
Bit 1
Bit 0
The JUST_REQ_EN bit is used to enable T1, E1, DS3, E3 and Fractional rate justification
request state machines to convert JUST_REQ to V5, V5+ and V5- characters to be carried
over the serial SBI336S link. When this bit is set to 1 the justification request state machines
will convert JUST_REQ signals to V5 characters. When this bit is set to 0 the state machines
will not generate additional V5 characters for the specified link and will only pass existing
V5 characters through as nominal rate V5 characters. This bit should be set to 1 when this
device is being used in SBI mode and is connected to physical layer device which is clock
master of the transmit tributary.
This bit should not be set if the TVT bit is set. This bit has no effect in TelecomBus mode.
The TVT bit configures a T1 or E1 tributary as a transparent virtual tributary. When TVT is
set to 1 the T1 or E1 tributary is configured as a TVT and the ERDI and REI bits in the V5
byte are transmitted across the serial link in one of the V5 characters. When TVT is set to 0
the T1 or E1 tributary is configured as a standard T1 or E1 link.
This bit should not be set if the JUST_REQ_EN bit is set. This bit has no effect in
TelecomBus mode or if the SPE is configured to something other that T1 or E1 data.
Type
R
R/W
R/W
TVT
JUST_REQ_EN
Function
Unused
SBSLITE™ Telecom Standard Product Data Sheet
Default
0
0
0
Preliminary
112
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