upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 330

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

12.1 Functions
executes DMA transfer.
peripheral I/O (serial interface, timer/counter, or A/D converter).
12.2 Features
330
The V850/SA1 incorporates a three channel DMA (Direct Memory Access) controller (DMAC) that controls and
The DMAC transfers data between internal RAM and on-chip peripheral I/O based on a trigger from the on-chip
Remark
DMA channels:
Transfer unit:
Maximum transfer count: 256 times (8-bit transfer)
Transfer mode:
Transfer clock:
Transfer request:
Transfer target:
f
CPU
: CPU operation clock
3
8/16 bits
Single transfer
4 clocks (min.) (4 × f
Request by interrupt from on-chip peripheral I/O (serial interface, timer/counter, A/D
converter)
Internal RAM
CHAPTER 12 DMA FUNCTIONS
User’s Manual U12768EJ4V1UD
peripheral I/O
CPU
)