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HD6432351 Datasheet(PDF) 134 Page - Renesas Technology Corp

Part # HD6432351
Description  16-Bit Single-Chip Microcomputer
PDF  1025 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432351 Datasheet(HTML) 134 Page - Renesas Technology Corp

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Section 5 Interrupt Controller
Rev. 3.00 Sep 15, 2006 page 100 of 988
REJ09B0330-0300
IRQn interrupt
request
IRQnE
IRQnF
S
R
Q
Clear signal
Edge/level
detection circuit
IRQnSCA, IRQnSCB
IRQn input
Note: n: 7 to 0
Figure 5.2 Block Diagram of Interrupts IRQ7 to IRQ0
Figure 5.3 shows the timing of setting IRQnF.
φ
IRQn
input pin
IRQnF
Figure 5.3 Timing of Setting IRQnF
The vector numbers for IRQ7 to IRQ0 interrupt exception handling are 23 to 16.
Detection of IRQ7 to IRQ0 interrupts does not depend on whether the relevant pin has been set for
input or output. However, when a pin is used as an external interrupt input pin, do not clear the
corresponding DDR to 0 and use the pin as an I/O pin for another function.



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