LM3S3748 Datasheet, PDF (584/753 Pages) List of Unclassifed Manufacturers – Microcontroller

Univeral Serial Bus (USB) Controller
Register 89: USB External Power Control Raw Interrupt Status (USBEPCRIS),
offset 0x404
Host
USBEPCRIS is instantiated in a USB unit in a wrapper around the USB controller/PHY IP. This
32-bit register specifies the unmasked interrupt status of the two-pin external power interface.
Device
USB External Power Control Raw Interrupt Status (USBEPCRIS)
Base 0x4005.0000
Offset 0x404
Type RO, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
reserved
PF
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31:1
0
Name
reserved
PF
Type
RO
RO
Reset
0x00
0
Description
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
USB Power Fault Interrupt Status
Specifies the unmasked state of the power fault status. This bit is cleared
by writing a 1 to the PF bit in the USBEPCISC register.
Value Description
0 The hardware has not detected a power fault.
1 The hardware has detected a power fault.
584
April 08, 2008
Preliminary