DAC JESD Register Map
277
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
Table 2-266. Register 40 Field Descriptions (continued)
Bit
Field
Type
Reset
Description
1-1
LINK1_COMMA_A
LIGN_RESET
R/W
0h
For Lanes[2:3]/lanes[6:7]
JESDB: reset K28.5 pattern search and start again
JESDC: reset sync_header alignment search and start again
0-0
LINK0_COMMA_A
LIGN_RESET
R/W
0h
For Lanes[0:1]/lanes[4:5]
JESDB: reset K28.5 pattern search and start again
JESDC: reset sync_header alignment search and start again
2.4.34 Register 41h (offset = 41h) [reset = 0h]
Figure 2-263. Register 41h
7
6
5
4
3
2
1
0
COMMA_ALIGN_BIT_COUNTER_INIT
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-267. Register 41 Field Descriptions
Bit
Field
Type
Reset
Description
6-0
COMMA_ALIGN_B
IT_COUNTER_INI
T
R/W
0h
Load the internal index-counter with this value
2.4.35 Register 42h (offset = 42h) [reset = 10h]
Figure 2-264. Register 42h
7
6
5
4
3
2
1
0
COMMA_ALIGN_VALID_THRESH
R/W-10h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-268. Register 42 Field Descriptions
Bit
Field
Type
Reset
Description
6-0
COMMA_ALIGN_V
ALID_THRESH
R/W
10h
JESDB: Minimum number of 4*K28.5 control characters
needed to jump from hunt state to lock state
JESDC: Minimum number of sync-header toggles needed to
jump from hunt state to lock state
2.4.36 Register 43h (offset = 43h) [reset = 2h]
Figure 2-265. Register 43h
7
6
5
4
3
2
1
0
COMMA_ALIGN_INVALID_THRESH
R/W-2h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-269. Register 43 Field Descriptions
Bit
Field
Type
Reset
Description
6-0
COMMA_ALIGN_I
NVALID_THRESH
R/W
2h
JESDB: UNUSED
JESDC: Minimum number of continous sync-header invalid
pattern needed to jump from lock state to hunt state