Renesas R5S72621 Manual De Usuario
Section 26 USB 2.0 Host/Function Module
Page 1350 of 2108
R01UH0134EJ0400 Rev. 4.00
Sep
24,
2014
SH7262 Group, SH7264 Group
26.3.1
System Configuration Control Register (SYSCFG)
SYSCFG is a register that enables high-speed operation, selects the host controller function or
function controller function, controls the DP and DM pins, and enables operation of this module.
function controller function, controls the DP and DM pins, and enables operation of this module.
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/W
R/W
R/W
R/W
R/W
R
R
R
R/W
—
—
—
—
—
—
—
HSE
SCKE
DCFM
DRPD DPRPU
—
—
USBE
—
Bit Bit
Name
Initial
Value R/W
Value R/W
Description
15 to 11
All
0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
should always be 0.
10
SCKE
0
R/W
USB Module Clock Enable
Stops or enables supplying 48-MHz clock signal to
this module.
this module.
0: Stops supplying the clock signal to the USB
module.
1: Enables supplying the clock signal to the USB
module.
When this bit is 0, only this register and the BUSWAIT
register allow both writing and reading; the other
registers in the USB module allows reading only.
register allow both writing and reading; the other
registers in the USB module allows reading only.
9, 8
All
0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
should always be 0.