USB Registers
16.5.4.15 AD_INTERFACE_REG1 Register (offset = 44h) [reset = 0h]
AD_INTERFACE_REG1 is shown in
and described in
.
All bits (unless defined) are bypass bits for internal analog to digital interface pins with the same name. All
the bits of this register, except the over-ride bits return a '0' on read, if VDDLDO is off.
Figure 16-148. AD_INTERFACE_REG1 Register
31
30
29
28
27
26
25
24
USE_AD_DATA_REG
HS_TX_DATA
FS_TX_DATA
TEST_PRE_EN_CNT
SQ_PRE_EN
HS_TX_PRE_EN
HS_RX_PRE_EN
TEST_EN_CNTRL
RL
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
23
22
21
20
19
18
17
16
HS_TX_EN
FS_RX_EN
Reserved
SQ_EN
HS_RX_EN
TEST_HS_MODE
HS_HV_SW
HS_CHIRP
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
15
14
13
12
11
10
9
8
TEST_FS_MODE
FSTX_GZ
FSTX_PRE_EN
Reserved
TEST_SQ_CAL_CON
SQ_CAL_EN3
SQ_CAL_EN1
SQ_CAL_EN2
TROL
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
7
6
5
4
3
2
1
0
TEST_RTERM_CAL_
RTERM_CAL_EN
DLL_RX_DATA
DISCON_DETECT
USE_LSHOST_REG
LSHOSTMODE
LSFS_RX_DATA
SQUELCH
CONTROL
R/W-0h
R/W-0h
R-0h
R-0h
R/W-0h
R/W-0h
R-0h
R-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 16-159. AD_INTERFACE_REG1 Register Field Descriptions
Bit
Field
Type
Reset
Description
31
USE_AD_DATA_REG
R/W
0h
Override for bits
30-29
30
HS_TX_DATA
R/W
0h
29
FS_TX_DATA
R/W
0h
28
TEST_PRE_EN_CNTRL
R/W
0h
Override for bits
27-25
27
SQ_PRE_EN
R/W
0h
26
HS_TX_PRE_EN
R/W
0h
25
HS_RX_PRE_EN
R/W
0h
24
TEST_EN_CNTRL
R/W
0h
Override for bits
23-19
23
HS_TX_EN
R/W
0h
22
FS_RX_EN
R/W
0h
21
Reserved
R/W
0h
20
SQ_EN
R/W
0h
19
HS_RX_EN
R/W
0h
18
TEST_HS_MODE
R/W
0h
Override for bits
17-16
17
HS_HV_SW
R/W
0h
16
HS_CHIRP
R/W
0h
15
TEST_FS_MODE
R/W
0h
Override for bits 14 12
14
FSTX_GZ
R/W
0h
13
FSTX_PRE_EN
R/W
0h
12
Reserved
R/W
0h
11
TEST_SQ_CAL_CONTR
R/W
0h
Override for bits 10 8
OL
10
SQ_CAL_EN3
R/W
0h
1920
Universal Serial Bus (USB)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated