VSC6134
Datasheet
3.8.48
DW Tandem Connection Monitor TTI FIFO Access Register
This is a paged register. Select one of six TCMs as defined in Table 250, bits [2:0].
Address:
0xF30: Add Path
0x730: Drop Path
0x0000
Register Reset Value:
Table 249. DW Tandem Connection Monitor TTI FIFO Access Register
Reset
Value
Bit
Name
Access
Description
15:0
TCM_TTI
RO
This register provides access to a 32 word deep, 16 bit
wide FIFO that holds the monitored TCM TTI values. The
FIFO has one configurable pointer for both read and write
operations shown in Table 250. Each time a read or write
operation occurs at this address (0xF30 Add / 0x730 Drop)
the pointer is automatically incremented by 1. Each of the
32 registers in the FIFO contains two 8 bit values for TTI.
Received TTI values are entered into the FIFO on a rotating
basis. The value of bits [7:0] of address “00000” of the FIFO
represents TTI 0 and the value at bits [15:8] of address
“11111” of the FIFO represents TTI 64. The 64-byte TTI
signal is aligned with the OTU multiframe (MFAS). Byte 0 of
the 64-byte TTI signal is present at OTU multiframe position
00.
0x0000
3.8.49
DW Tandem Connection Monitor Configuration Register
Bits [12:7] of this register are paged. Select one of six TCMs as defined in Table 250, bits [2:0].
Address:
0xF31: Add Path
0x731: Drop Path
0x0001
Register Reset Value:
Table 250. DW Tandem Connection Monitor Configuration Register
Reset
Value
Bit
Name
Access
RO
Description
15:13
12:8
Reserved
TCM_TTIPNT
000
R/W
TCM TTI MPU Read Pointer
0X00
This is the MPU read pointer into the TCM TTI FIFO that
auto-increments on an MPU read or write.
7
TCM_TTIINVD
R/W
TCM TTI Invalidate
0
A zero to one transition clears the three TCM TTI live bits,
invalidating all TCM TTI fields.
6
5
Reserved
RO
0
0
TCM_BIAEAUTO
R/W
TCM Auto BIAE
A ‘1’ allows TCM IAE to set TCM BEI to the BIAE condition
on the Add Path. A ‘0’ disables this function.
307 of 438
VMDS-10185 Revision 4.0
July 2006
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
