7721 datasheet(334/577 Pages) RENESAS

334 / 577 page

13-55

DMA CONTROLLER

13.5 Single transfer mode

7721 Group User’s Manual

b15

Source address register 0 (Addresses 1FC216 to 1FC016) (SAR0)

Source address register 1 (Addresses 1FD216 to 1FD016) (SAR1)

Source address register 2 (Addresses 1FE216 to 1FE016) (SAR2)

Source address register 3 (Addresses 1FF216 to 1FF016) (SAR3)

Functions

Bit

At reset

23 to 0 [Write]

Set the transfer start address of the source.

These bits can be set to “00000016” to “FFFFFF16.”

[Read]

The read value indicates the source address of data

which is next transferred.

Undefined

Note: When writing to this register, write to all 24 bits.

b23

b16

b15

Destination address register 0 (Addresses 1FC616 to 1FC416) (DAR0)

Destination address register 1 (Addresses 1FD616 to 1FD416) (DAR1)

Destination address register 2 (Addresses 1FE616 to 1FE416) (DAR2)

Destination address register 3 (Addresses 1FF616 to 1FF416) (DAR3)

Functions

Bit

At reset

23 to 0 [Write]

Set the transfer start address of the destination.

These bits can be set to “00000016” to “FFFFFF16.”

[Read]

The read value indicates the destination address of

data which is next transferred.

Undefined

Note: When writing to this register, write to all 24 bits.

b23

b16

b15

Transfer counter register 0 (Addresses 1FCA16 to 1FC816) (TCR0)

Transfer counter register 1 (Addresses 1FDA16 to 1FD816) (TCR1)

Transfer counter register 2 (Addresses 1FEA16 to 1FE816) (TCR2)

Transfer counter register 3 (Addresses 1FFA16 to 1FF816) (TCR3)

Functions

Bit

At reset

23 to 0 [Write]

Set the byte number of the transfer data.

These bits can be set to “00000116” to “FFFFFF16.”

[Read]

The read value indicates remaining byte number of

the transfer data.

Undefined

Note: When writing to this register, write to all 24 bits.

Do not set this register to “00000016.”

b23

b16

Fig. 13.5.1 Register structures of SARi, DARi, and TCRi in single transfer mode

7721 Datasheet(PDF) 334 Page - Renesas Technology Corp

7721 Datasheet(HTML) 334 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

Datasheet Download

Link URL