S/UNI®-ATLAS-3200 Telecom Standard Product Data Sheet
Preliminary
TYP[4:0]
10000
Cell Type
Inactive Connection, or mis-configuration of
the VPC Pointer.
10001
10010
Search Error
Cell Transfer Error (bad POS-3 or UL3
parity, or invalid PHYID)
10011
10100
10101
OAM cell with errored CRC-10
RM cell with errored CRC-10
Generated AIS
10110
Generated CC
10111
11000..11111
Generated Forward Monitoring PM
Reserved
PHYID[5:0]: The index of the PHY device associated with the cell.
VCRA[15:0]: The VC Record associated with the cell
The UP_DMAREQ output and the EXTCA bits of the MCIF Extract Buffer Control and Status
registers are asserted if one or more complete cells are available in the buffer. The first read of
the MCIF after either the EXTCA bit or the UP_DMAREQ is asserted returns the first word of
the cell. Subsequent reads return the remainder of the cell. The sequence of words is the same as
for buffer writes (see above). At any time, the read pointer can be returned to the beginning of
the cell by setting the RESTART bit. The current cell is discarded upon setting the ABORT bit.
The UP_DMAREQ output is deasserted during the read of the last word of the cell.
10.18 JTAG Test Access Port
The JTAG Test Access Port block provides JTAG support for boundary scan. The standard JTAG
EXTEST, SAMPLE, BYPASS, IDCODE and STCTEST are supported. The S/UNI-ATLAS-
3200 identification code is 073250CD hexadecimal.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990553, Issue 4
143
PMC [ PMC-SIERRA, INC ]
