SH7672 datasheet(193/1292 Pages) RENESAS

Part #	SH7672

Description	32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7670 Series

PDF	1292 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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193 / 1292 page

Section 6 Interrupt Controller (INTC)

Rev. 1.00 Nov. 14, 2007 Page 167 of 1262

REJ09B0437-0100

6.9.1

Handling Interrupt Request Signals as Sources for CPU Interrupt but Not DMAC

Activating

Do not select DMAC activating sources or clear the DME bit to 0. If, DMAC activating

sources are selected, clear the DE bit to 0 for the relevant channel of the DMAC.

2. When interrupts occur, interrupt requests are sent to the CPU.

3. The CPU clears the interrupt source and performs the necessary processing in the interrupt

exception service routine.

6.9.2

Handling Interrupt Request Signals as Sources for Activating DMAC but Not CPU

Interrupt

1. Select DMAC activating sources and set both the DE and DME bits to 1. This masks CPU

interrupt sources regardless of the interrupt priority register settings.

2. Activating sources are applied to the DMAC when interrupts occur.

3. The DMAC clears the interrupt sources when starting transfer.

SH7672 Datasheet(PDF) 193 Page - Renesas Technology Corp