DAC JESD Register Map
332
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
Table 2-427. Register FB Field Descriptions
Bit
Field
Type
Reset
Description
7-0
ALARMS_MASK[3
1:24]
R/W
0h
Masks 'alarms' register to the alarm pin; will not affect alarm
read from SPI
[27:24] = TIED to 0
[28]= JESDB: SRX1/5 Frame-Sync error (Ctrl-K in middle of
data)
JESDC: SRX1/5 Fixed ones error
[29]= JESDB: SRX2/6 Frame-Sync error (Ctrl-K in middle of
data)
JESDC: SRX2/6 Fixed ones error
[30]= JESDB: SRX3/7 Frame-Sync error (Ctrl-K in middle of
data)
JESDC: SRX3/7 Fixed ones error
[31]= JESDB: SRX4/8 Frame-Sync error (Ctrl-K in middle of
data)
JESDC: SRX4/8 Fixed ones error
Note: Refer to the TI application note for details on error
interpretation.
2.4.195 Register FCh (offset = FCh) [reset = 0h]
Figure 2-424. Register FCh
7
6
5
4
3
2
1
0
ALARMS_MASK[39:32]
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-428. Register FC Field Descriptions
Bit
Field
Type
Reset
Description
7-0
ALARMS_MASK[3
9:32]
R/W
0h
Masks 'alarms' register to the alarm pin; will not affect alarm
read from SPI
[39:32] = SRX1/5 JESD errors
Each of the bits for the above mentioned lane errors are
mapped to :
bit7 = JESDB: multiframe alignment error
bit6 = JESDB: frame alignment error
bit5 = JESDB: link configuration error
bit4 = JESDB: elastic buffer overflow (bad RBD value)
bit3 = JESDB: elastic buffer match error. The first non-/K/
doesnt match 'match_ctrl' and 'match_data' programmed
values
bit2 = JESDB: code synchronization error
bit1 = JESDB: 8b/10b not-in-table code error
Bit0 = JESDB: 8b/10b disparity error
bit7 = JESDC: EoEMB alignment error
bit6 = JESDC: EoMB alignment error
bit5 = JESDC: cmd-data in crc mode not matching with spi
register bits
bit4 = JESDC: elastic buffer overflow (bad RBD value)
bit3 = JESDC: TIED to 0.
bit2 = JESDC: extended multiblock alignment error
bit1 = JESDC: sync-header invalid error ('11' or '00' received
in expected sync header location)
Bit0 = JESDC: sync-header CRC error
Note: Refer to the TI application note for details on error
interpretation.