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 Custo mers’ Internal Use 126
Register 0x43: TPOP Current Pointer LSB
Bit Type Function Default
Bit 7 R CPTR[7] X
Bit 6 R CPTR[6] X
Bit 5 R CPTR[5] X
Bit 4 R CPTR[4] X
Bit 3 R CPTR[3] X
Bit 2 R CPTR[2] X
Bit 1 R CPTR[1] X
Bit 0 R CPTR[0] X
CPTR[7:0]:
The CPTR[7:0] bits, along with the CPTR[9:8] bits in the TPOP Current
Pointer MSB Register reflect the value of the current payload pointer being
inserted in the transmit stream. The value may be changed by loading a new
pointer value using the TPOP Arbitrary Pointer LSB and MSB Registers, or by
inserting positive and negative pointer movements using the PSE and NSE
register bits.