NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 732 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
USB Interrupt Enable Register (UIENR)
Register
Offset
R/W
Description
Reset Value
UIENR
0x028
R/W
USB Interrupt Enable 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
IAAEN
HSERREN
FLREN
PCIEN
UERRIEN
USBIEN
Bits
Description
[31:6]
Reserved
Reserved.
[5]
IAAEN
Interrupt on Async Advance Enable
When this bit is a one, and the Interrupt on Async Advance bit in the USBSTS register is a
one, the host controller will issue an interrupt at the next interrupt threshold. The interrupt is
acknowledged by software clearing the Interrupt on Async Advance bit.
[4]
HSERREN
Host System Error Enable
When this bit is a one, and the Host System Error Status bit in the USBSTS register is a
one, the host controller will issue an interrupt. The interrupt is acknowledged by software
clearing the Host System Error bit.
[3]
FLREN
Frame List Rollover Enable
When this bit is a one, and the Frame List Rollover bit in the USBSTS register is a one, the
host controller will issue an interrupt. The interrupt is acknowledged by software clearing
the Frame List Rollover bit.
[2]
PCIEN
Port Change Interrupt Enable
When this bit is a one, and the Port Change Detect bit in the USBSTS register is a one, the
host controller will issue an interrupt. The interrupt is acknowledged by software clearing
the Port Change Detect bit.
[1]
UERRIEN
USB Error Interrupt Enable
When this bit is a one, and the USBERRINT bit in the USBSTS register is a one, the host t
controller will issue an interrupt at the next interrupt threshold. The interrupt is
acknowledged by software clearing the USBERRINT bit.
[0]
USBIEN
USB Interrupt Enable
When this bit is a one, and the USBINT bit in the USBSTS register is a one, the host
controller will issue an interrupt at the next interrupt threshold. The interrupt is
acknowledged by software clearing the USBINT bit.