HD64F2149YV datasheet(154/1075 Pages) RENESAS

Nome de Peças	HD64F2149YV

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

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Section 5 Interrupt Controller

Rev. 3.00 Jan 18, 2006 page 126 of 1044

REJ09B0280-0300

Default Priority Determination: The priority is determined for the selected interrupt, and a

vector number is generated.

If the same value is set for ICR, acceptance of multiple interrupts is enabled, and so only the

interrupt source with the highest priority according to the preset default priorities is selected and

has a vector number generated.

Interrupt sources with a lower priority than the accepted interrupt source are held pending.

Table 5.7 shows operations and control signal functions in each interrupt control mode.

Table 5.7

Operations and Control Signal Functions in Each Interrupt Control Mode

Setting

Interrupt Acceptance Control

3-Level Control

Interrupt

Control Mode

INTM1

INTM0

ICR

Default Priority

Determination

T (Trace)

—

Legend:

Interrupt operation control performed

IM: Used as interrupt mask bit

PR: Sets priority

—: Not used

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