S/UNI®-ATLAS-3200 Telecom Standard Product Data Sheet
Preliminary
COUNT1[7:0]
The COUNT1[7:0] controls which cells the Cell Processor includes in its first per-connection
32-bit cell count. The COUNT1[7:0] field is programmed as follows:
Cell
User Cells
OAM Cells
RM Cells
Invalid PTI/VCI
Type
CLP Bit
1
0
1
0
1
0
1
0
COUNT1
COUNT1
COUNT1
COUNT1
COUNT1
COUNT1
COUNT1
COUNT1
Register
[7]
[6]
[5]
[4]
[3]
[2]
[1]
[0]
Bit
A logic 1 written to any of the COUNT1[7:0] bits enables counting on that particular stream.
For example, to enable counting of CLP=0+1 User and OAM cells only, the register
configuration would be COUNT1[7:0] = 0xF0. If COUNT1[7:0] = 0x00, the first generic
cell count for all connections is disabled. OAM and RM cells include those with invalid
CRC-10s. Invalid PTI/VCI cells include F5 cells with PTI = “111”, F4 cells with VCI = 0, F4
cells with VCI = 7 through 15, and (if vp_rm_pti6 is set to logic 1 in the Routing
Configuration Register) F4 RM cells which have PTI not equal to “110”. Note that cells
which cannot reliably be identified with a particular connection (those that suffer UTOPIA
parity errors and failed searches) and cells that are generated by S/UNI-ATLAS-3200 are not
counted at all.
COUNT2[7:0]
The COUNT2[7:0] register bits controls which cells the Cell Processor includes in its second
per-connection 32-bit cell count. The COUNT2[7:0] field is programmed exactly the same as
the COUNT1[7:0] field.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990553, Issue 4
204
PMC [ PMC-SIERRA, INC ]
