USB Registers
16.5.3.35 USB1MODE Register (offset = E8h) [reset = 100h]
USB1MODE is shown in
and described in
.
Figure 16-133. USB1MODE Register
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
IDDIG
R/W-1h
7
6
5
4
3
2
1
0
IDDIG_MUX
Reserved
PHY_TEST
LOOPBACK
R/W-0h
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 16-143. USB1MODE Register Field Descriptions
Bit
Field
Type
Reset
Description
8
IDDIG
R/W
1h
MGC input value for iddig
0=A type
1=B type
7
IDDIG_MUX
R/W
0h
Multiplexer control for IDDIG signal going to the controller.
0 = IDDIG is from PHY1.
1 = IDDIG is from bit8 (IDDIG) of this USB1MODE register.
1
PHY_TEST
R/W
0h
PHY test
0 = Normal mode
1 = PHY test mode
0
LOOPBACK
R/W
0h
Loopback test mode
0 = Normal mode
1 = Loopback test mode USB1 Mode Register
16.5.4 USB2PHY Registers
lists the memory-mapped registers for the USB2PHY. All register offset addresses not listed
in
should be considered as reserved locations and the register contents should not be
modified.
Table 16-144. USB2PHY REGISTERS
Offset
Acronym
Register Name
Section
0h
Termination_control
4h
RX_CALIB
8h
DLLHS_2
Ch
RX_TEST_2
14h
CHRG_DET
18h
PWR_CNTL
1Ch
UTMI_INTERFACE_CNTL_1
20h
UTMI_INTERFACE_CNTL_2
24h
BIST
28h
BIST_CRC
2Ch
CDR_BIST2
30h
GPIO
34h
DLLHS
1901
SPRUH73H – October 2011 – Revised April 2013
Universal Serial Bus (USB)
Copyright © 2011–2013, Texas Instruments Incorporated