Datasheet

Table Of Contents
Section 15 Universal Serial Bus Interface (USB)
Page 530 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
15.3.34 USB Interrupt Enable Register 1 (UIER1) (Only in H8S/2215R, H8S/2215T and
H8S/2215C)
UIER1 enables the interrupt request indicated in the interrupt flag register 1 (UIFR1). When an
interrupt flag is set while the corresponding bit in UIER1 is set to 1, an interrupt is requested by
asserting the corresponding EXIRQ0 or EXIRQ1 pin. Either EXIRQ0 or EXIRQ1 must be
selected by the interrupt select register 1 (UISR1).
Bit Bit Name Initial Value R/W Description
7, 6 All 0 R Reserved
These bits are always read as 0.
5 EP3iTFE 0 R/W Enables the EP3iTF interrupt
4 EP3iTRE 0 R/W Enables the EP3iTR interrupt
3
EP2iALL
EMPTYE
0
R/W
Enables EP2iALLEMPTYE interrupt
2 EP2oREADYE 0 R/W Enables the EP2oREADY interrupt
1 EP2iTRE 0 R/W Enables the EP2iTR interrupt
0 EP2iEMPTYE 0 R/W Enables the EP2iEMPTYE interrupt
15.3.35 USB Interrupt Enable Register 2 (UIER2)
UIER2 enables the interrupt request indicated in the interrupt flag register 2 (UIFR2). When an
interrupt flag is set while the corresponding bit in UIER2 is set to 1, an interrupt is requested by
asserting the corresponding EXIRQ0 or EXIRQ1 pin. Either EXIRQ0 or EXIRQ1 must be
selected by the interrupt select register 2 (UISR2).
Bit Bit Name Initial Value R/W Description
7, 6 All 0 R Reserved
These bits are always read as 0.
5 EP5iTRE 0 R/W Enables the EP5iTR interrupt
4 EP5iTSE 0 R/W Enables the EP5iTS interrupt
3
0
R
Reserved
This bit is always read as 0.
2 EP4oREADYE 0 R/W Enables the EP4oREADY interrupt
1 EP4iTRE 0 R/W Enables the EP4iTR interrupt
0 EP4iEMPTYE 0 R/W Enables the EP4iEMPTY interrupt