Renesas M32R/ECU Series User Manual page 214

9
DMA3 Channel Control Register 0 (DM3CNT0)
b0 1 2
MDSEL3 TREQF3 REQSL3
0 0 0
b Bit Name
0 MDSEL3
DMA3 transfer mode select bit
1 TREQF3
DMA3 transfer request flag bit
2, 3 REQSL3
DMA3 transfer request source select bit
4 TENL3
DMA3 transfer enable bit
5 TSZSL3
DMA3 transfer size select bit
6 SADSL3
DMA3 source address direction select bit
7 DADSL3
DMA3 destination address direction select bit
Note 1: Only writing "0" is effective. Writing "1" has no effect; the bit retains the value it had before the write.
DMA3 Channel Control Register 1 (DM3CNT1)
b8 9 10
0 0 0
b Bit Name
8–11 No function assigned. Fix to "0".
12–15 REQESEL3
Extended DMA3 transfer request source select bit
3 4 5 6
TENL3 TSZSL3 SADSL3 DADSL3
0 0 0 0
11 12 13 14
REQESEL3
0 0 0 0
b7
0
Function
0: Normal mode
1: Ring buffer mode
0: Transfer not requested
1: Transfer requested
00: Software start
01: SIO0_TXD (transmit buffer empty)
10: SIO1_RXD
11: Extended DMA3 transfer request source select
(DMA3 Channel Control Register 1)
0: Disable transfer
1: Enable transfer
0: 16 bits
1: 8 bits
0: Fixed
1: Increment
0: Fixed
1: Increment
b15
0
Function
0000: MJT(TIN0)
0001: One DMA2 transfer completed
0010: AD1 conversion completed
0011: Common 1) MJT (input event bus 1)
0100: Common 2) MJT (input event bus 3)
0101: Common 3) MJT (output event bus 2)
0110: Common 4) MJT (output event bus 3)
0111: Common 5) AD0 conversion completed
1000: Common 6) MJT (TIN0S)
1001: Common 7) MJT (TIO8_udf)
1010: Settings inhibited
| |
1111: Settings inhibited
9-9
9.2 DMAC Related Registers
<Address: H'0080 0440>
<After reset: H'00>
<Address: H'0080 0441>
<After reset: H'00>
32180 Group User's Manual (Rev.1.0)
DMAC
R W
R W
R(Note 1)
R W
R W
R W
R W
R W
R W
0 0
R W