PMC-Sierra PM5349 manual Paisconprdi, Nopaisconeprdi

PMC-Sierra, Inc.

S/UNI-QUAD

DATASHEET

PM5349 S/UNI-QUAD

PMC-971239 ISSUE 6 SATURN USER NETWORK INTERFACE (155-QUAD)

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.

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