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S/UNI-QUAD
PMC-Sierra, Inc.
PM5349 S/UNI-QUAD
DATASHEET
PMC-971239 ISSUE 6 SATURN USER NETWORK INTERFACE (155-QUAD)
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
169
Register 0x93: S/UNI-QUAD Channel Receive RDI and Enhanced RDI
Control Extensions
Bit Type Function Default
Bit 7 R/W PAISCONPRDI 0
Bit 6 R/W
NOPAISCONEPRDI
0
Bit 5 Unused X
Bit 4 Unused X
Bit 3 Unused X
Bit 2 W EPRDI_EN 0
Bit 1 R/W Reserved 1
Bit 0 R/W Reserved 1
This register along with the S/UNI-QUAD Channel Path RDI Control register
controls the auto assertion of path RDI on the TPOP transmit stream. This
register along with the S/UNI-QUAD Channel Enhanced Path RDI Control
register controls the auto assertion of enhanced path RDI on the TPOP transmit
stream.
Since the S/UNI-QUAD provides STS-3c (STM-1) mapping, this register controls
the entire SONET/SDH stream.
EPRDI_EN:
The EPRDI_EN bit enables the automatic insertion of enhanced RDI in the
local transmitter. When EPRDI_EN is a logic one, auto insertion is enabled
using the event enable bits in this register. When EPRDI_EN is a logic zero,
enhanced path RDI is not automatically inserted in the transmit stream.
NOPAISCONEPRDI:
When set high, the NOPAISCONEPRDI bit disables enhanced path RDI
assertion when path AIS concatenation (PAISCON) events are detected in the
receive stream. If enabled, when the event occurs, bit 6 of the G1 byte is set
low while bit 7 of the G1 byte is set high. NOPAISCONEPRDI has
precedence over PSLMERDI and UNEQERDI.
When NOPAISCONEPRDI is set low, reporting of enhanced RDI is according
to PSLMERDI and UNEQERDI and the associated alarm states.
PAISCONPRDI:
When set high, the PAISCONPRDI bit enables path RDI assertion when path
AIS concatenation (PAISCON) events are detected in the receive stream.
When PAISCONPRDI is set low, path AIS concatenation events have no effect
on path RDI.