M16CSLASH29 datasheet(119/499 Pages) RENESAS

119 / 499 page

11. DMAC

page 95

Figure 11.4 SAR0, SAR1, DAR0, DAR1, TCR0, and TCR1 Registers

b0 b7

(b8)

(b15)

Function

Set the transfer count minus 1. The written value is

stored in the DMAi transfer counter reload register,

and when the DMAE bit in the DMiCON register is

set to 1 (DMA enabled) or the DMAi transfer

counter underflows when the DMASL bit in the

DMiCON register is 1 (repeat transfer), the value

of the DMAi transfer counter reload register is

transferred to the DMAi transfer counter.

When read, the DMAi transfer counter is read

Symbol

Address

After Reset

TCR0

002916, 002816

Undefined

TCR1

003916, 003816

Undefined

DMAi Transfer Counter (i = 0, 1)

Setting Range

000016 to FFFF16

(b23)

b0 b7

(b8)

(b16)(b15)

(b19)

Function

Set the source address of transfer

Symbol

Address

After Reset

SAR0

002216 to 002016

Undefined

SAR1

003216 to 003016

Undefined

DMAi Source Pointer (i = 0, 1) (1)

Setting Range

0000016 to FFFFF16

Nothing is assigned. If necessary, set 0. When read, the contents

are 0

Symbol

Address

After Reset

DAR0

002616 to 002416

Undefined

DAR1

003616 to 003416

Undefined

b0 b7

(b8)

(b15)

(b16)

(b19)

Function

Set the destination address of transfer

DMAi Destination Pointer (i = 0, 1)(1)

Setting Range

0000016 to FFFFF16

(b23)

NOTE:

1. If the DSD bit in the DMiCON register is 0 (fixed), this register can only be written to when the DMAE bit in the

DMiCON register is set to 0 (DMA disabled).

If the DSD bit is set to 1 (forward direction), this register can be written to at any time.

If the DSD bit is set to 1 and the DMAE bit is set to 1 (DMA enabled), the DMAi forward address pointer can be

read from this register. Otherwise, the value written to it can be read.

Nothing is assigned. If necessary, set 0. When read, the contents

are 0

NOTE:

1. If the DAD bit in the DMiCON register is 0 (fixed), this register can only be written to when the DMAE bit in the

DMiCON register is set to 0 (DMA disabled).

If the DAD bit is set to 1 (forward direction), this register can be written to at any time.

If the DAD bit is set to 1 and the DMAE bit is set to 1 (DMA enabled), the DMAi forward address pointer can be

read from this register. Otherwise, the value written to it can be read.

M16C/29 датащи(PDF) 119 Page - Renesas Technology Corp

M16C/29 датащи(HTML) 119 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL