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CHAPTER 16 DMAC (DMA Controller)
■
DMAC-ch.0, ch.1, ch.2, ch.3, ch.4 Control/Status Registers B
[DMACB0 to DMACB4]
These registers control the operation of each DMAC channel. A separate register is provided for each
channel.
The function of each bit is as follows.
[bit31, bit30] TYPE (TYPE) *: Transfer type setting
Sets the type of operation for the corresponding channel as follows.
Two-cycle transfer mode:
This transfer mode sets the transfer source address (DMASA) and transfer
destination address (DMADA), then performs the specified number of read and
write operations.
•
Initialized to "00
B
" when resetting.
•
The read / write is possible.
•
Always set this bit to "00
B
".
[bit29, bit28] MOD (MODe)* : Transfer mode setting
Sets the operation mode for the corresponding channel as follows.
•
Initialized to "00
B
" when resetting.
•
The read / write is possible.
bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
TYPE [1:0]
MOD [1:0]
WS [1:0]
SADM
DADM
DTCR SADR DADR
ERIE EDIE
DSS[2:0]
bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SASZ[7:0]
DASZ[7:0]
(Initial value: 00000000_00000000_00000000_00000000
B
)
TYPE
Function
00
B
Two-cycle transfer (initial value)
01
B
Setting disabled
10
B
Setting disabled
11
B
Setting disabled
MOD
Function
00
B
Block/step transfer mode (initial value)
01
B
Burst transfer mode
10
B
Setting disabled
11
B
Setting disabled
Summary of Contents for FR60Lite
Page 3: ......
Page 5: ......
Page 115: ...100 CHAPTER 3 CPU AND CONTROL UNITS ...
Page 127: ...112 CHAPTER 4 I O PORTS ...
Page 143: ...128 CHAPTER 5 INTERRUPT CONTROLLER ...
Page 155: ...140 CHAPTER 6 EXTERNAL INTERRUPT AND NMI CONTROLLER ...
Page 197: ...182 CHAPTER 9 PPG Programmable Pulse Generator ...
Page 337: ...322 CHAPTER 13 UART ...
Page 417: ...402 CHAPTER 16 DMAC DMA Controller ...
Page 445: ...430 CHAPTER 17 FLASH MEMORY ...
Page 451: ...436 CHAPTER 18 SERIAL PROGRAMMING CONNECTION ...
Page 493: ...478 APPENDIX F Precautions on Handling ...
Page 494: ...479 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
Page 507: ...492 INDEX ...
Page 509: ......