r5s72060w200fpv Renesas Electronics Corporation., r5s72060w200fpv Datasheet - Page 396

• Manufacturer Part Number: r5s72060w200fpv
• Description: 32-bit Risc Microcomputer Superhtm Risc Engine Family / Sh7200 Series
• Manufacturer: Renesas Electronics Corporation.

Section 9 Direct Memory Access Controller (DMAC)
Rev. 2.00 Dec. 09, 2005 Page 372 of 1152
REJ09B0191-0200
Bit
15,14
13, 12
Bit Name
DM[1:0]
SM[1:0]
Initial
Value
00
00
R/W
R/W
R/W
Descriptions
Destination Address Mode
These bits select whether the DMA destination
address is incremented, decremented, or left fixed. (In
single address mode, DM1 and DM0 bits are ignored
when data is transferred to an external device with
DACK.)
00: Fixed destination address (Setting prohibited in 16-
01: Destination address is incremented (+1 in 8-bit
10: Destination address is decremented (–1 in 8-bit
11: Setting prohibited
Source Address Mode
These bits select whether the DMA source address is
incremented, decremented, or left fixed. (In single
address mode, SM1 and SM0 bits are ignored when
data is transferred from an external device with
DACK.)
00: Fixed source address (Setting prohibited in 16-
01: Source address is incremented (+1 in byte-unit
10: Source address is decremented (–1 in byte-unit
11: Setting prohibited
byte transfer)
transfer, +2 in 16-bit transfer, +4 in 32-bit transfer,
+16 in 16-byte transfer)
transfer, –2 in 16-bit transfer, –4 in 32-bit transfer,
setting prohibited in 16-byte transfer)
byte-unit transfer)
transfer, +2 in word-unit transfer, +4 in longword-
unit transfer, +16 in 16-byte-unit transfer)
transfer, –2 in word-unit transfer, –4 in longword-
unit transfer, setting prohibited in 16-byte-unit
transfer)