h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 186

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

• Repeat area set function
• Acceptance of a transfer request and the start of transfer processing can be notified to an
Rev. 2.00, 03/04, page 154 of 534
This function enables data transfer of ring buffer, etc. efficiently because values in the upper
bits of the transfer address register are fixed and address values in the specific range are
repeated.
Repeat area can be set from one bit (two bytes) to 23 bits (8 Mbytes).
Repeat area can be set for both transfer source and transfer destination.
Interrupt request generation can be set by overflow determination of repeat area.
external device via the DRAK pin.