
ML62Q1000 Series User's Manual
Chapter 14
DMA
Controller
FEUL62Q1000
14-6
11011:
External 3 DMA request
11100:
External 4 DMA request
11101:
External 5 DMA request
11110:
External 6 DMA request
11111:
External 7 DMA request
7 to 5
-
Reserved
4
DCnDS
This bit is used to set the transfer data unit of channel n.
0: 8bit (Initial)
1: 16bit
3, 2
DCnDAMD1,
DCnDAMD0
These bits are used to set the addressing mode of the transfer destination of channel n.
00:
Fixed address mode (initial value)
The transfer source address or transfer destination address is fixed.
01:
Increment address mode
DCnDA register is incremented once in 8-bit transfer mode (DCnDS bit = 0) and
incremented twice in 16-bit transfer mode (DCnDS bit = 1).
10:
Decrement address mode
DCnDA register is decremented once in 8-bit transfer mode (DCnDS bit = 0) and
incremented twice in 16-bit transfer mode (DCnDS bit = 1).
11:
Do not use (Decrement address mode)
1, 0
DCnSAMD1,
DCnSAMD0
These bits are used to set the addressing mode of the transfer source of channel n.
00:
Fixed address mode (initial value)
The transfer source address or transfer destination address is fixed.
01:
Increment address mode
DCnSA register is incremented once in 8-bit transfer mode (DCnDS bit = 0) and
incremented twice in 16-bit transfer mode (DCnDS bit = 1).
10:
Decrement address mode
DCnSA register is decremented once in 8-bit transfer mode (DCnDS bit = 0) and
incremented twice in 16-bit transfer mode (DCnDS bit = 1).
11:
Do not use (Decrement address mode)
[Note]
•
Set the bits except for DCnSTRG bit when the transfer is disabled (DCnEN bit of DCEN register = 0).
•
When performing the software trigger by setting the DCnSTRG bit to "1", the transfer is held if the next
instruction is data memory access. Place two NOP instructions after setting DCnSTRG to "1" to prevent
the hold and make the immediate transfer.
•
When selecting the 16bit timer DMA request, choose the 16bit timer mode by setting THn8BM bit of 16bit
timer n mode register (TMHnMOD) to
"
0
"
.
•
The DMA requests in the channel 0 and channel 1 of the serial communication unit are only available for
the DMA transfer trigger.
Summary of Contents for ML62Q1000 Series
Page 17: ...Chapter 1 Overview...
Page 112: ...Chapter 2 CPU and Memory Space...
Page 154: ...Chapter 3 Reset Function...
Page 166: ...Chapter 4 Power Management...
Page 196: ...Chapter 5 Interrupts...
Page 248: ...Chapter 6 Clock generation Circuit...
Page 274: ...Chapter 7 Low Speed Time Base Counter...
Page 291: ...Chapter 8 16 Bit Timer...
Page 320: ...Chapter 9 Functional Timer FTM...
Page 382: ...Chapter 10 Watchdog Timer...
Page 402: ...Chapter 11 Serial Communication Unit...
Page 456: ...Chapter 12 I2 C Bus Unit...
Page 491: ...Chapter 13 I2 C Master...
Page 512: ...Chapter 14 DMA Controller...
Page 531: ...Chapter 15 Buzzer...
Page 550: ...Chapter 16 Simplified RTC...
Page 559: ...Chapter 17 GPIO...
Page 594: ...Chapter 18 External Interrupt Function...
Page 612: ...Chapter 19 CRC Generator...
Page 632: ...Chapter 20 Analog Comparator...
Page 644: ...Chapter 21 D A Converter...
Page 655: ...Chapter 22 Voltage Level Supervisor...
Page 676: ...Chapter 23 Successive Approximation Type A D Converter...
Page 709: ...Chapter 24 Regulator...
Page 714: ...Chapter 25 Flash Memory...
Page 743: ...Chapter 26 Code Option...
Page 750: ...Chapter 27 LCD Driver...
Page 788: ...Chapter 28 On Chip Debug Function...
Page 795: ...Chapter 29 Safety Function...
Page 813: ...Appendix A...
Page 881: ...Revision History...