VSC6134
Datasheet
3.6.18
Add/Drop TTI Generator FIFO Pointer Register
Address:
0x813: Add Path
0x293: Drop Path
0x0000
Register Reset Value:
Table 171. Add/Drop TTI Generator FIFO Pointer Register
Reset
Value
Bit
Name
Access
Description
15:11
[ADD/DROP]_PM_TTI_PNT
R/W
This field is a pointer to the address of the FIFO that is
accessible through register address 0x812 (add) or 0x292
(drop) that holds the PM TTI values. This pointer is used for
both read and write operations and is automatically
incremented by 1 after any read or write operation.
00000
00000
x00
10:6
[ADD/DROP]_SM_TTI_PNT
R/W
RO
This field is a pointer to the address of the FIFO that is
accessible through register address 0x811 (add) or 0x291
(drop) that holds the SM TTI values. This pointer is used for
both read and write operations and is automatically
incremented by 1 after any read or write operation.
5:0
Reserved
3.6.19
Add/Drop PSI Generator FIFO Access Register
This register provides access to a 128-word deep, 16-bit wide FIFO that holds the PSI values to be
inserted into the provisioned PSI field. The FIFO has one configurable pointer for both read and write
operations ([ADD/DROP]_PSI_GEN_PNT[6:0]) and each time a read or write operation occurs at this
address, the pointer is automatically incremented by 1. The value n is in the range from 0 to 255 and
each of the 128 registers in the FIFO contains two 8-bit values for PSI. The values that reside in the
FIFO’s 256 eight-bit fields are the values that are inserted into the outgoing PSI field on a rotating basis.
The 256-byte PSI signal is aligned with the OTU multiframe (MFAS). Byte 0 of the 255-byte PSI signal
is present at OTU multiframe position 00.
Address:
0x814: Add Path
0x294: Drop Path
0x0000
Register Reset Value:
Table 172. Add/Drop PSI Generator FIFO Access Register
Reset
Value
Bit
Name
Access
Description
15:8
[ADD/DROP]_PSI_GEN n
(n is odd)
R/W
The value at bits 15-8 of address 0x7F of the FIFO
represents PSI 255.
0x00
7:0
[ADD/DROP]_PSI_GEN n
(n is even)
R/W
The value of bits 7-0 of address 0x00 of the FIFO
represents PSI 0.
0x00
265 of 438
VMDS-10185 Revision 4.0
July 2006
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
