Datasheet

Section 16 USB Function Module (USB)
R01UH0309EJ0500 Rev. 5.00 Page 959 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
16.3.7 Interrupt Select Register 0 (ISR0)
ISR0 selects the vector numbers of the interrupt requests indicated in interrupt flag register 0
(IFR0). If the USB issues an interrupt request to the INTC when a bit in ISR0 is cleared to 0, the
interrupt corresponding to the bit will be USBINTN2. If the USB issues an interrupt request to the
INTC when a bit in ISR0 is set to 1, the corresponding interrupt will be USBINTN3.
Bit Bit Name
Initial
Value R/W Description
7 BRSTS 0 R/W Bus Reset
6 CFDNS 0 R/W End Point Information Load End
5 ⎯ 0 ⎯ Reserved
This bit is always read as 1. The write value should
always be 1.
4 SURSFS 0 R/W Suspend/Resume Detection
3 SETCS 0 R/W Set_Configuration Command Detection
2 SETIS 0 R/W Set_Interface Command Detection
1 ⎯ 0 ⎯ Reserved
This bit is always read as 1. The write value should
always be 1.
0 VBUSFS 1 R/W USB Bus Connection/Disconnection