RELEASED
PM7383 FREEDM-32A256
DATASHEET
PMC-2010336
ISSUE 1
FRAME ENGINE AND DATA LINK MANAGER 32A256
Register 0x480 – 0x488 : TCAS Links #0 to #2 Configuration
Bit
Type
Function
Default
Bit 15
to
Unused
XXXH
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
BSYNC
Unused
MODE[2]
MODE[1]
MODE[0]
0
X
0
0
0
R/W
R/W
R/W
This register configures operational modes of transmit links #0 to #2.
MODE[2:0]:
The mode select bits (MODE[2:0]) configures the corresponding transmit link.
Table 15 details this procedure. When link 4m (0?m?7) is configured for
operation in 8.192 Mbps H-MVIP mode, links 4m+1, 4m+2 and 4m+3 are
driven with constant ones. However, links 4m+1, 4m+2 and 4m+3 must be
configured for 8.192 Mbps H-MVIP mode for correct operation of the
TCAS256. From a channel assignment point of view in the TCAS256
(Registers 0x400, 0x404), time-slots 0 through 31 of link 4m are mapped to
time-slots 0 through 31 of the H-MVIP link, time-slots 0 through 31 of link
4m+1 are mapped to time-slots 32 through 63 of the H-MVIP link, time-slots 0
through 31 of link 4m+2 are mapped to time-slots 64 through 95 of the H-
MVIP link and time-slots 0 through 31 of link 4m+3 are mapped to time-slots
96 through 127 of the H-MVIP link.
PROPRIETARY AND CONFIDENTIAL
142
PMC [ PMC-SIERRA, INC ]
