Renesas R5S72645 Manual Do Utilizador
Section 26 USB 2.0 Host/Function Module
R01UH0134EJ0400 Rev. 4.00
Page 1409 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
26.3.22
Frame Number Register (UFRMNUM)
UFRMNUM is a register that indicates the
frame number.
This register is initialized by a power-on reset.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit:
Initial value:
R/W:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
—
—
—
—
—
—
—
—
—
—
—
—
—
UFRNM[2:0]
Bit Bit
Name
Initial
Value R/W Description
Value R/W Description
15 to 3
All
0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
should always be 0.
2 to 0
UFRNM[2:0]
000
R
Frame
The
frame number can be confirmed.
This module sets these bits to indicate the
frame
number during high-speed operation.
During operation other than high-speed operation,
this module sets these bits to B'000.
this module sets these bits to B'000.
Read these bits twice to check that the same value is
read.
read.