NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 677 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
USB Test Mode Register (USBD_TEST)
Register
Offset
R/W
Description
Reset Value
USBD_TEST
0x024 R/W
USB Test Mode Register
0x0000_0000
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
7
6
5
4
3
2
1
0
Reserved
TESTMODE
Bits
Description
[31:3]
Reserved
Reserved.
[2:0]
TESTMODE
Test Mode Selection
000 = Normal Operation.
001 = Test_J.
010 = Test_K.
011 = Test_SE0_NAK.
100 = Test_Packet.
101 = Test_Force_Enable.
110 = Reserved.
111 = Reserved.
Note:
This field is cleared when root port reset is detected.