DAC JESD Register Map
276
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
Table 2-265. Register 3F Field Descriptions
Bit
Field
Type
Reset
Description
7-6
SYNC_FIFO_66TO
33_OFFSET_LANE
23
R/W
0h
JESDB: UNUSED.
JESDC: Offset for 66to33 lanes[2:3]/lanes[6:7] fifo(fifo which is
used to convert JESDC 66-bit words to 33 bits so that the
elastic buffer can be common between JESDB and JESDC)
0 : 0
1 : 1
2 : 2
3 : 3
5-4
SYNC_FIFO_66TO
33_OFFSET_LANE
01
R/W
0h
JESDB: UNUSED.
JESDC: Offset for 66to33 lanes[0:1]/lanes[4:5] fifo(fifo which is
used to convert JESDC 66-bit words to 33 bits so that the
elastic buffer can be common between JESDB and JESDC)
0 : 0
1 : 1
2 : 2
3 : 3
3-2
SYNC_FIFO_33TO
66_OFFSET_LANE
23
R/W
2h
JESDB: UNUSED.
JESDC: Offset for 33to66 lanes[2:3]/lanes[6:7] fifo (fifo which
is used to convert 33 bits from gearbox to 66 bits for IP use).
0 : 0
1 : 1
2 : 2
3 : 3
1-0
SYNC_FIFO_33TO
66_OFFSET_LANE
01
R/W
2h
JESDB: UNUSED.
JESDC: Offset for 33to66 lanes[0:1]/lanes[4:5] fifo (fifo which
is used to convert 33 bits from gearbox to 66 bits for IP use).
0 : 0
1 : 1
2 : 2
3 : 3
2.4.33 Register 40h (offset = 40h) [reset = 0h]
Figure 2-262. Register 40h
7
6
5
4
3
2
1
0
COMMA_ALIG
N_TIMER_EN
COMMA_ALIG
N_REALIGN_M
ASK
LINK1_COMM
A_ALIGN_LOC
K_RESET_DIS
ABLE
LINK0_COMM
A_ALIGN_LOC
K_RESET_DIS
ABLE
LINK1_COMM
A_ALIGN_RES
ET
LINK0_COMM
A_ALIGN_RES
ET
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-266. Register 40 Field Descriptions
Bit
Field
Type
Reset
Description
5-5
COMMA_ALIGN_T
IMER_EN
R/W
0h
UNUSED
4-4
COMMA_ALIGN_R
EALIGN_MASK
R/W
0h
TESTMODE
3-3
LINK1_COMMA_A
LIGN_LOCK_RES
ET_DISABLE
R/W
0h
For Lanes[2:3]/lanes[6:7]
JESDB: Any lane error will reset the k28.5 pattern search.
Setting this will will override the reset of those state machines.
JESDC: Any lane error will reset the sync-header alignment
search. Setting this will will override the reset of those state
machines
2-2
LINK0_COMMA_A
LIGN_LOCK_RES
ET_DISABLE
R/W
0h
For Lanes[0:1]/lanes[4:5]
JESDB: Any lane error will reset the k28.5 pattern search.
Setting this will will override the reset of those state machines.
JESDC: Any lane error will reset the sync-header alignment
search. Setting this will will override the reset of those state
machines