S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet
Released
Register 0x0CC, 0x1CC, 0x2CC, 0x3CC, 0x4CC, 0x5CC, 0x6CC, 0x7CC:
TXFP Transmit User Aborted Frame Count LSB
Bit
Type
R
R
R
R
R
R
R
R
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TUSRABF[7]
TUSRABF[6]
TUSRABF[5]
TUSRABF[4]
TUSRABF[3]
TUSRABF[2]
TUSRABF[1]
TUSRABF[0]
X
X
X
X
X
X
X
X
Register 0x0CD, 0x1CD, 0x2CD, 0x3CD, 0x4CD, 0x5CD, 0x6CD, 0x7CD:
TXFP Transmit User Aborted Frame Count MSB
Bit
Type
R
R
R
R
R
R
R
R
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TUSRABF[15]
TUSRABF[14]
TUSRABF[13]
TUSRABF[12]
TUSRABF[11]
TUSRABF[10]
TUSRABF[9]
TUSRABF[8]
X
X
X
X
X
X
X
X
TUSRABF[15:0]:
The TUSRABF[15:0] bits indicate the number of user aborted POS frames read from the
transmit FIFO and inserted into the transmission stream during the last accumulation
interval. User can abort frames by asserting TERR. A write to any one of the TXFP
Transmit User Aborted Frame Counter registers loads the registers with the current counter
value and resets the internal counter to zero.
The count can also be polled by writing to the S/UNI-8x155 Master Reset and Identity
register (0x000). Writing to register address 0x000 loads all counter registers in all
channels and APS links.
The count can also be polled by writing to the channel Master Interrupt Status register
(offset 0x07). Writing to register offset 0x07 loads all counter registers in the RSOP, RLOP,
RPOP, SPTB, SSTB, RXCP, TXCP, RXFP, and TXFP blocks of the channel.
When the TUL3 FIFO is overrun, the corrupted packet is market as errored. When this
errored packet is transmitted with the HDLC abort sequence, the TUSRABF count in the
TXFP will be incremented. The TXFP cannot distinguish between a user aborted packet
and a packet aborted by the TUL3.
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
272
PMC [ PMC-SIERRA, INC ]
