M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 489

• Manufacturer Part Number: M30622MA-XXXFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
• Manufacturer: RENESAS [Renesas Technology Corp]

DMAC Applications
474
Figure 3.6.3. Set-up procedure of memory to memory DMA transfer (1)
Initialization of DMA0
Initialization of DMA1
b7
b7
0
0
b23
b7
b7
b7
b23
b23
b23
b7
00
00
0C
0A
16
16
16
16
0
0 0
0
b16
b16
b16
b16
b0
b0
b0
b0
1
1
b15
b15
b15
b15
b7
b15
b15
b7
b7
b7
b7
b7
b0
0
b0
0
08
00
00
00
08
00
DMA request cause select bit
Software DMA request bit
DMA request cause select bit
Software DMA request bit
DMA0 request cause select register
DM0SL [Address 03B8
b3 b2 b1 b0
b3 b2 b1 b0
0 0 1 0 : Timer A0
0 : Software is not generated
DMA0 request cause select register
DM1SL [Address 03BA
0 0 1 0 : Timer A0
0 : Software is not generated
16
16
16
16
16
16
b8 b7
b8 b7
b8 b7
b8 b7
b8 b7
b8 b7
b0
b0
b0
b0
b0
b0
Continued to the next page
7F
00
00
7F
00
00
16
16
16
16
16
16
16
16
]
]
b0
b0
b0
b0
b0
b0
DMA0 destination
pointer
DMA0 source pointer
DMA0 transfer counter
DMA1 source pointer
DMA1 destination
pointer
DMA1 transfer counter TCR1 [Address 0039
b7
b7
1 0
0
1
1 0
1 0
DAR0
SAR0
TCR0
SAR1 [Address 0032
DAR1 [Address 0036
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
1
1
b0
1
b0
1
[Address 0026
[Address 0022
[Address 0029
Transfer unit bit select bit
Repeat transfer mode select bit
DMA request bit
DMA enable bit
Source address direction select bit
Destination address direction
select bit
Transfer unit bit select bit
Repeat transfer mode select bit
DMA request bit
DMA enable bit
Source address direction select bit
Destination address direction
select bit
1 : Forward
DMA1 control register
DM1CON [Address 003C
1 : 8 bits
1 : Repeat transfer
0 : DMA not requested
1 : Enabled
0 : Fixed
1 : 8 bits
1 : Repeat transfer
0 : DMA not requested
1 : Enabled
1 : Forward
0 : Fixed
DMA0 control register
DM0CON [Address 002C
16
16
16
16
16
16
, 0031
, 0035
, 0038
, 0025
, 0021
, 0028
16
Mitsubishi microcomputers
16
16
M16C / 62 Group
16
16
16
, 0030
, 0034
]
, 0024
, 0020
]
16
16
16
16
]
]
16
]
16
]
]
]