R01UH0823EJ0100 Rev.1.00
Page 869 of 1823
Jul 31, 2019
RX23W Group
32. USB 2.0 Host/Function Module (USBc)
32.2.7
Interrupt Enable Register 0 (INTENB0)
Note 1. The RSME, DVSE, and CTRE bits can be set to 1 only when the function controller is selected; do not set these bits to 1 to
enable the corresponding interrupt output when the host controller is selected.
On detecting the interrupt corresponding to the bit in the INTENB0 register to which 1 has been set by software, the USB
generates the USB interrupt request.
The USB sets 1 to each status bit in the INTSTS0 register when a detection condition of the corresponding interrupt
source has been satisfied regardless of the setting in the INTENB0 register (regardless of whether the interrupt output is
enabled or disabled).
While the status bit in the INTSTS0 register corresponding to the interrupt source indicates 1, the USB generates the
USB interrupt request when the corresponding interrupt enable bit in the INTENB0 register is modified from 0 to 1 by
software.
Address(es): 000A 0030h
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
VBSE RSME SOFE
DVSE
CTRE BEMPE NRDYE BRDYE
—
—
—
—
—
—
—
—
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b7 to b0
—
Reserved
These bits are read as 0. The write value
should be 0.
R/W
b8
Buffer Ready Interrupt Enable
0: Interrupt output disabled
1: Interrupt output enabled
R/W
b9
Buffer Not Ready Response Interrupt Enable
0: Interrupt output disabled
1: Interrupt output enabled
R/W
b10
Buffer Empty Interrupt Enable
0: Interrupt output disabled
1: Interrupt output enabled
R/W
b11
Control Transfer Stage Transition Interrupt Enable
*
0: Interrupt output disabled
1: Interrupt output enabled
R/W
b12
Device State Transition Interrupt Enable*
0: Interrupt output disabled
1: Interrupt output enabled
R/W
b13
Frame Number Update Interrupt Enable
0: Interrupt output disabled
1: Interrupt output enabled
R/W
b14
Resume Interrupt Enable*
0: Interrupt output disabled
1: Interrupt output enabled
R/W
b15
VBUS Interrupt Enable
0: Interrupt output disabled
1: Interrupt output enabled
R/W