upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 508

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

Cautions: 1. When the DMA transfer object is in the external memory area, set the valid chip
Caution:
508
Internal RAM
External Memory
On-chip Peripheral I/O
SA25 - SA0
The number of relevant bits of SA25 - SA0 is as follows:
Transfer object
2. If the DMA transfer object is internal memory and peripheral I/O area, write “000”
SA0 and DA0 have to be set to 0, when DMA transfer size is halfword.
SA0 and DA0 and SA1 and DA1 have to be set to 0, when DMA transfer size is word.
select signal for SC[2:0].
to SC[2:0].
Figure 15-5: DMA Source Address Register (DMSAn) Format (2/2)
DMA transfer source address (address signals A25 - A0).
If address increment is selected for the DMA transfer, the address will be updated after
each transfer to the next transfer address.
SC2
0
0
0
0
1
1
1
1
Chapter 15 DMA Functions (DMA Controller)
Set the lower 16-bit address for SA15 - SA0
Set the lower 26-bit address for SA25 - SA0
Set the lower 14-bit address for SA13 - SA0
SC1
0
0
1
1
0
0
1
1
User’s Manual U16702EE3V2UD00
SC0
0
1
0
1
0
1
0
1
CS0 is selected.
CS1 is selected.
Setting prohibited
Selected chip and selection area
Setting of SA25 - SA0