SH7041A datasheet(252/923 Pages) RENESAS

номер детали	SH7041A

подробное описание детали	Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)

PDF	923 Pages

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производитель	RENESAS [Renesas Technology Corp]

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 Channel 3: Dual address mode only. Direct address transfer mode and indirect address

transfer mode selectable.

• Reload function: Enables automatic reloading of the value set in the first source address

• Transfer requests: There are three DMAC transfer activation requests, as indicated below.

 External request: From two DREQ pins. DREQ can be detected either by falling edge or by

low level. External requests can only be received on channels 0 or 1.

 Requests from on-chip peripheral modules: Transfer requests from on-chip modules such as

SCI or A/D. These can be received by all channels.

 Auto-request: The transfer request is generated automatically within the DMAC.

• Selectable bus modes: Cycle-steal mode or burst mode

• Two types of DMAC channel priority ranking:

 Fixed priority mode: Always fixed

 Round robin mode: Sets the lowest priority level for the channel that received the execution

request last

• CPU can be interrupted when the specified number of data transfers are complete.

SH7041A датащи(PDF) 252 Page - Renesas Technology Corp