HD64F2149YV datasheet(144/1075 Pages) RENESAS

Nome de Peças	HD64F2149YV

Descrição Electrónicos	Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series

PDF	1075 Pages

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Fabricante Electrônico	RENESAS [Renesas Technology Corp]

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144 / 1075 page

Section 5 Interrupt Controller

Rev. 3.00 Jan 18, 2006 page 116 of 1044

REJ09B0280-0300

IRQn interrupt

request

IRQnE

IRQnF

Clear signal

Edge/level

detection circuit

IRQnSCA, IRQnSCB

IRQn input

Note: n: 7 to 0

Figure 5.3 Block Diagram of Interrupts IRQ7 to IRQ0

Figure 5.4 shows the timing of IRQnF setting.

IRQn

input pin

IRQnF

Figure 5.4 Timing of IRQnF Setting

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, clear the

corresponding DDR bit to 0 and do not use the pin as an I/O pin for another function.

When

IRQ6 pin is assigned as IRQ6 interrupt input pin, then clear the KMIMR6 bit to 0.

When the

IRQ7 pin is used as the IRQ7 interrupt input pin, bits KMIMR15 to KMIMR8 and

WUEMRB7 to WUEMRB0 must all be set to 1. If any of these bits is cleared to 0, an IRQ7

interrupt input from the

IRQ7 pin will be ignored.

HD64F2149YV Folha de dados(PDF) 144 Page - Renesas Technology Corp