SH7020 Datasheet, PDF(187/509 Page) Renesas Technology Corp – SuperH™ RISC engine

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

SH7020 Datasheet, PDF (187/509 Pages) Renesas Technology Corp – SuperH™ RISC engine

◁

ï£§ Two on-chip peripheral modules (excluding 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 peripheral modules (serial communications interface (SCI), 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 5V and 20 MHz

Bus mode: Burst mode

Transmit size: Word

9.1.2 Block Diagram

Figure 9.1 is a block diagram of the DMAC.

170 RENESAS

▷