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H8/3021 Datasheet(PDF) 675 Page - Renesas Technology Corp

Part # H8/3021
Description  16-Bit Single-Chip Microcomputer
PDF  712 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8/3021 Datasheet(HTML) 675 Page - Renesas Technology Corp

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Appendix B. Internal I/O Register Field
Rev.2.00 Mar. 22, 2007 Page 651 of 684
REJ09B0352-0200
ISCR—IRQ Sense Control Register
H'F4
Interrupt controller
Bit
Initial value
Read/Write
7
—
0
R/W
6
—
0
R/W
5
IRQ5SC
0
R/W
4
IRQ4SC
0
R/W
3
—
0
R/W
2
—
0
R/W
1
IRQ1SC
0
R/W
0
IRQ0SC
0
R/W
IRQ , IRQ , IRQ and IRQ sense control
0
Interrupts are requested when
IRQ , IRQ , IRQ , and IRQ
inputs are low
1
Interrupts are requested by falling-edge input at
IRQ , IRQ ,
IRQ and IRQ
5
0
5
1
4
54
10
0
4
1
IER—IRQ Enable Register
H'F5
Interrupt controller
Bit
Initial value
Read/Write
7
—
0
R/W
6
—
0
R/W
5
IRQ5E
0
R/W
4
IRQ4E
0
R/W
3
—
0
R/W
2
—
0
R/W
1
IRQ1E
0
R/W
0
IRQ0E
0
R/W
IRQ5, IRQ4, IRQ1, IRQ0 enable
0
IRQ5, IRQ4, IRQ1 and IRQ0 interrupts are disabled
1
IRQ5, IRQ4, IRQ1 and IRQ0 interrupts are enabled



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