LM3S3748 Datasheet, PDF (530/753 Pages) List of Unclassifed Manufacturers – Microcontroller

Univeral Serial Bus (USB) Controller
Register 10: USB Endpoint Index (USBEPIDX), offset 0x0E
Host
Each endpoint's buffer can be accessed by configuring a FIFO size and starting address. The
USBEPIDX 16-bit register is used with the USBTXFIFOSZ, USBRXFIFOSZ, USBTXFIFOADD,
and USBRXFIFOADD registers.
Device
USB Endpoint Index (USBEPIDX)
Base 0x4005.0000
Offset 0x0E
Type R/W, reset 0x0000
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
reserved
EPIDX
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
15:4
3:0
Name
reserved
EPIDX
Type
RO
R/W
Reset
0x00
0x00
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.
Endpoint Index
This sets which endpoint is accessed when reading or writing to one of
the USB controller's indexed registers.
530
April 08, 2008
Preliminary