HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 136
HD6412332
Manufacturer Part Number
HD6412332
Description
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6412332.pdf
(1244 pages)
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Figure 5.3 shows the 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. Therefore, when a pin is used as an external interrupt input pin, do not clear the
corresponding DDR bit to 0 and use the pin as an I/O pin for another function. The pins that can
be used for IRQ4 to IRQ7 interrupt input can be switched by means of the IRQPAS bit in SYSCR.
Rev.4.00 Sep. 07, 2007 Page 106 of 1210
REJ09B0245-0400
input pin
IRQnF
IRQn input
IRQn
Note: n = 7 to 0
φ
Figure 5.2 Block Diagram of Interrupts IRQ7 to IRQ0
IRQnSCA, IRQnSCB
detection circuit
Edge/level
Figure 5.3 Timing of Setting IRQnF
Clear signal
R
S
IRQnF
Q
IRQnE
IRQn interrupt
request
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