H8SSLASH2214 datasheet(176/936 Pages) RENESAS

部件名	H8S/2214

功能描述	16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

PDF	936 Pages

Scroll/Zoom	100%

制造商	RENESAS [Renesas Technology Corp]

网页	http://www.renesas.com

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Section 5 Interrupt Controller

Rev.4.00 Sep. 18, 2008 Page 116 of 872

REJ09B0189-0400

5.6

DTC and DMAC Activation by Interrupt

5.6.1

Overview

The DTC and DMAC can be activated by an interrupt. In this case, the following options are

available:

• Interrupt request to CPU

• Activation request to DTC

• Activation request to DMAC

• Selection of a number of the above

For details of interrupt requests that can be used with to activate the DTC and DMAC, see section

7, DMA Controller (DMAC) and section 8, Data Transfer Controller (DTC).

5.6.2

Block Diagram

Figure 5.9 shows a block diagram of the DTC and DMAC interrupt controller.

DMAC

Selection

circuit

DTCER

DTVECR

Control logic

Determination of

priority

CPU

DTC

Select

signal

IRQ

interrupt

On-chip

supporting

module

Clear signal

Interrupt controller

I, I2 to I0

Interrupt source

clear signal

Interrupt

request

DTC activation

request vector

number

CPU interrupt

request vector

number

SWDTE

clear signal

Clear signal

Figure 5.9 Interrupt Control for DTC and DMAC

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