USB Registers
16.5.4.11 CDR_BIST2 Register (offset = 2Ch) [reset = 0h]
CDR_BIST2 is shown in
and described in
.
clock data recovery register and BIST register 2
Figure 16-144. CDR_BIST2 Register
31
30
29
28
27
26
25
24
CDR_EXE_EN
CDR_EXE_MODE
NUM_DECISIONS
CDR_CHOSEN_PHA
SE
R/W-0h
R/W-0h
R/W-0h
R-0h
23
22
21
20
19
18
17
16
CDR_CHOSEN_PHASE
FORCE_CDR_PHASE
DISABLE_CDR_FRE
CDR_CONFIGURE
Q_TRACK
R-0h
R-0h
R-0h
R-0h
15
14
13
12
11
10
9
8
CDR_CONFIGURE
FORCE_CDR_PHAS
Bist_start_addr
E_EN
R-0h
R-0h
R/W-0h
7
6
5
4
3
2
1
0
Bist_start_addr
Bist_end_addr
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 16-155. CDR_BIST2 Register Field Descriptions
Bit
Field
Type
Reset
Description
31
CDR_EXE_EN
R/W
0h
CDR debug bits
30-28
CDR_EXE_MODE
R/W
0h
CDR debug bits
27-25
NUM_DECISIONS
R/W
0h
CDR debug bits
24-22
CDR_CHOSEN_PHASE
R
0h
21-19
FORCE_CDR_PHASE
R
0h
18
DISABLE_CDR_FREQ_T
R
0h
RACK
17-13
CDR_CONFIGURE
R
0h
12
FORCE_CDR_PHASE_E
R
0h
Use bits
N
21-19 as the phase to be forced on the CDR.
11-6
Bist_start_addr
R/W
0h
See DFT spec for details
5-0
Bist_end_addr
R/W
0h
See DFT spec for details
1916
Universal Serial Bus (USB)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated