PMC-Sierra PM5349 manual Register 0x22 Tlop Transmit K1 Bit Type Function Default

PMC-Sierra, Inc.

S/UNI-QUAD

DATASHEET

PM5349 S/UNI-QUAD

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

Register 0x22: TLOP Transmit K1

Bit	Type	Function	Default
Bit 7	R/W	K1[7]	0
Bit 6	R/W	K1[6]	0
Bit 5	R/W	K1[5]	0
Bit 4	R/W	K1[4]	0
Bit 3	R/W	K1[3]	0
Bit 2	R/W	K1[2]	0
Bit 1	R/W	K1[1]	0
Bit 0	R/W	K1[0]	0

K1[7:0]:

The K1[7:0] bits contain the value inserted in the K1 byte when the APSREG bit in the TLOP Control Register is a logic one. K1[7] is the most significant bit, corresponding to the first bit (bit 1) transmitted. K1[0] is the least significant bit, corresponding to the last bit (bit 8) transmitted. The bits in this register are double buffered so that register writes do not need to be synchronized to SONET/SDH frame boundaries. The insertion of a new APS code value is initiated by a write to this register. The contents of this register, and the TLOP Transmit K2 Register are inserted in the transmit stream starting at the next frame boundary. Successive writes to this register must be spaced at least two frames (250 µs) apart.

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