SH7032 Datasheet, PDF(206/687 Page) Renesas Technology Corp – 32-Bit RISC Microcomputer

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SH7032 Datasheet, PDF (206/687 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

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Section 9 Direct Memory Access Controller (DMAC)

ï£§ On-chip memory and on-chip supporting module (excluding the DMAC)

ï£§ Two on-chip supporting modules (excluding the DMAC)

â¢ Transfer requests

ï£§ External request (From DREQ pins (channels 0 and 1 only). DREQ can be detected either

by edge or by level)

ï£§ Requests from on-chip supporting modules (serial communication interface (SCI), A/D

converter (A/D), and 16-bit integrated timer pulse unit (ITU))

ï£§ Auto-request (the transfer request is generated automatically within the DMAC)

â¢ Selectable bus modes: Cycle-steal mode or burst mode

â¢ Selectable channel priority levels: Fixed, round-robin, or external-pin round-robin modes

â¢ CPU can be asked for interrupt when data transfer ends

â¢ Maximum transfer rate

ï£§ 20 M words/s (320 MB/s)

For 5 V and 20 MHz

Bus mode: Burst mode

Transmission size: Word

Rev. 7.00 Jan 31, 2006 page 180 of 658

REJ09B0272-0700

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