M16C65 Datasheet, PDF (303/829 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/60

Under development
M16C/65 Group
Preliminary Specification
This is a preliminary specification and is subject to change.
16.2.1 DMAi Source Pointer (SARi) (i = 0 to 3)
16. DMAC
DMAi Source Pointer (i = 0 to 3)
(b23)
b7
(b19) (b16) (b15)
b3
b0 b7
(b8)
b0 b7
b0
Symbol
SAR0
SAR1
SAR2
SAR3
Function
Address
0182h to 0180h
0192h to 0190h
01A2h to 01A0h
01B2h to 01B0h
Set the source address of transfer
After Reset
0X XXXXh
0X XXXXh
0X XXXXh
0X XXXXh
Setting Range
RW
00000h to FFFFFh
RW
No register bits. If necessary, set to 0. Read as 0
—
If the DSD bit in the DMiCON register is 0 (fixed), write to this register when the DMAE bit in the
DMiCON register is 0 (DMA disabled).
If the DSD bit is 1 (forward direction), this register can be written to at any time.
If the DSD bit is 1 and the DMAE bit is 1 (DMA enabled), the DMAi forward address pointer can be read
from this register. Otherwise, the value written to it can be read.
The forward address pointer is incremented when a DMA request is accepted.
16.2.2 DMAi Destination Pointer (DARi) (i = 0 to 3)
DMAi Destination Pointer (i = 0 to 3)
(b23)
b7
(b19) (b16) (b15)
b3
b0 b7
(b8)
b0 b7
b0
Symbol
DAR0
DAR1
DAR2
DAR3
Function
Address
0186h to 0184h
0196h to 0194h
01A6h to 01A4h
01B6h to 01B4h
Set the destination address of transfer
No register bits. If necessary, set to 0. Read as 0
After Reset
0X XXXXh
0X XXXXh
0X XXXXh
0X XXXXh
Setting Range
RW
00000h to FFFFFh
RW
—
If the DAD bit in the DMiCON register is 0 (fixed), write to this register when the DMAE bit in the
DMiCON register is 0 (DMA disabled).
If the DAD bit is 1 (forward direction), this register can be written to at any time.
If the DAD bit is 1 and the DMAE bit is 1 (DMA enabled), the DMAi forward address pointer can be read
from this register. Otherwise, the value written to it can be read.
The forward address pointer is incremented on accepting a DMA request.
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
Page 268 of 791