DAC JESD Register Map
307
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
Table 2-354. Register 98 Field Descriptions (continued)
Bit
Field
Type
Reset
Description
3-0
LINK0_SYSREF_C
NT_ON_RELEASE
_OPPORTUNITY
R
0h
For JESDB
Step-1 First run the simulation with some link0_rbd_m1
register programmed
Step-2 Read the lane0_f_counter_all_lanes_ready status
register
Step-3 Program the link0_rbd_m1 registers with the
'modulo((lane0_f_counter_all_lanes_ready ' + 2), F*K/4) and
run the simulation
Step-4 Now read the '
link0_sysref_cnt_on_release_opportunity' status register
Step-5 Again Program the link0_rbd_m1 registers with the
link0_rbd_m1 from Step-3 as modulo(('link0_rbd_m1 from
Step-3' + link0_sysref_cnt_on_release_opportunity), F*K/4)
and run the simulation
Step-6 Now if you read back the register '
link0_sysref_cnt_on_release_opportunity', it should read back
as 0
For JESDC
Step-1 First run the simulation with some link0_rbd_m1
register programmed
Step-2 Read the lane0_f_counter_all_lanes_ready status
register
Step-3 Program the link0_rbd_m1 registers with the
'modulo((lane0_f_counter_all_lanes_ready ' + 2), 64*K) and
run the simulation
Step-4 Now read the '
link0_sysref_cnt_on_release_opportunity' status register
Step-5 Again Program the link0_rbd_m1 registers with the
link0_rbd_m1 from Step-3 as modulo(('link0_rbd_m1 from
Step-3' + link0_sysref_cnt_on_release_opportunity), 64*K) and
run the simulation
Step-6 Now if you read back the register '
link0_sysref_cnt_on_release_opportunity', it should read back
as 0
Note: Refer to TI App Note for detail on RBD optimization.
2.4.122 Register 99h (offset = 99h) [reset = 0h]
Figure 2-351. Register 99h
7
6
5
4
3
2
1
0
LINK0_MAPPE
R_CNT_MAX_
OVR
LINK0_MAPPER_CNT_MAX_VAL
LINK0_MAPPE
R_SYSREF_C
NT_OVR
LINK0_MAPPER_SYSREF_CNT_VAL
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 2-355. Register 99 Field Descriptions
Bit
Field
Type
Reset
Description
7-7
LINK0_MAPPER_
CNT_MAX_OVR
R/W
0h
TESTMODE
6-4
LINK0_MAPPER_
CNT_MAX_VAL
R/W
0h
TESTMODE
3-3
LINK0_MAPPER_S
YSREF_CNT_OVR
R/W
0h
TESTMODE
2-0
LINK0_MAPPER_S
YSREF_CNT_VAL
R/W
0h
TESTMODE