ISD94100 Series Technical Reference Manual
Sep 9, 2019
Page
844
of 928
Rev1.09
IS
D
9
410
0
S
ER
IE
S
T
E
C
HN
ICA
L
RE
F
E
RE
NCE
M
AN
U
AL
USB Interrupt Event Status Register (USBD_INTSTS)
Register
Offset
R/W Description
Reset Value
USBD_INTSTS
0x004
R/W USB Device Interrupt Event Status Register
0x0000_0000
31
30
29
28
27
26
25
24
SETUP
Reserved
EPEVT11
EPEVT10
EPEVT9
EPEVT8
23
22
21
20
19
18
17
16
EPEVT7
EPEVT6
EPEVT5
EPEVT4
EPEVT3
EPEVT2
EPEVT1
EPEVT0
15
14
13
12
11
10
9
8
Reserved
7
6
5
4
3
2
1
0
Reserved
SOFIF
NEVWKIF
VBDETIF
USBIF
BUSIF
Bits
Description
[31]
SETUP
Setup Event Status
0 = No Setup event.
1 = Setup event occurred, cleared by writing 1 to USBD_INTSTS[31].
[30:28]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[27]
EPEVT11
Endpoint 11’s USB Event Status
0 = No event occurred in endpoint 11.
1 = USB event occurred on Endpoint 11, check USBD_EPSTS1[15:12] to know which kind
of USB event was occurred, cleared by writing 1 to USBD_INTSTS[27] or
USBD_INTSTS[1].
[26]
EPEVT10
Endpoint 10’s USB Event Status
0 = No event occurred in endpoint 10.
1 = USB event occurred on Endpoint 10, check USBD_EPSTS1[11 :8] to know which kind
of USB event was occurred, cleared by writing 1 to USBD_INTSTS[26] or
USBD_INTSTS[1].
[25]
EPEVT9
Endpoint 9’s USB Event Status
0 = No event occurred in endpoint 9.
1 = USB event occurred on Endpoint 9, check USBD_EPSTS1[7 :4] to know which kind of
USB event was occurred, cleared by writing 1 to USBD_INTSTS[25] or USBD_INTSTS[1].
[24]
EPEVT8
Endpoint 8’s USB Event Status
0 = No event occurred in endpoint 8.
1 = USB event occurred on Endpoint 8, check USBD_EPSTS1[3 :0] to know which kind of
USB event was occurred, cleared by writing 1 to USBD_INTSTS[24] or USBD_INTSTS[1].
[23]
EPEVT7
Endpoint 7’s USB Event Status
0 = No event occurred in endpoint 7.
1 = USB event occurred on Endpoint 7, check USBD_EPSTS0[31:28] to know which kind
of USB event was occurred, cleared by writing 1 to USBD_INTSTS[23] or
USBD_INTSTS[1].
