Rev. 5.00, 09/03, page 335 of 760
11.2.3
DMA Transfer Count Registers 0–3 (DMATCR0–DMATCR3)
DMA transfer count registers 0–3 (DMATCR0–DMATCR3) are 24-bit readable/writable registers
that specify the DMA transfer count (bytes, words, or longwords). The number of transfers is 1
when the setting is H'000001, and 16,777,216 (the maximum) when H'000000 is set. During a
DMA transfer, these registers indicate the remaining number of transfers.
In 16-byte transfer, one 16-byte transfer (128 bits) is counted as one.
Writing to upper eight bits in DMATCR is invalid; 0s are read if these bits are read. The write
value should always be 0.
An undefined value will be returned in a reset. The previous value is retained in standby mode.
Bit:
31
30
29
28
27
26
25
24
Initial value:
—
—
—
—
—
—
—
—
R/W:
R
R
R
R
R
R
R
R
Bit:
23
22
21
20
...
0
...
Initial value:
—
—
—
—
...
—
R/W:
R/W
R/W
R/W
R/W
...
R/W
Содержание SH7709S
Страница 2: ......
Страница 44: ...Rev 5 00 09 03 page xliv of xliv ...
Страница 62: ...Rev 5 00 09 03 page 18 of 760 ...
Страница 128: ...Rev 5 00 09 03 page 84 of 760 ...
Страница 146: ...Rev 5 00 09 03 page 102 of 760 ...
Страница 224: ...Rev 5 00 09 03 page 180 of 760 ...
Страница 246: ...Rev 5 00 09 03 page 202 of 760 ...
Страница 266: ...Rev 5 00 09 03 page 222 of 760 ...
Страница 370: ...Rev 5 00 09 03 page 326 of 760 ...
Страница 432: ...Rev 5 00 09 03 page 388 of 760 ...
Страница 532: ...Rev 5 00 09 03 page 488 of 760 ...
Страница 598: ...Rev 5 00 09 03 page 554 of 760 ...
Страница 630: ...Rev 5 00 09 03 page 586 of 760 ...
Страница 656: ...Rev 5 00 09 03 page 612 of 760 ...
Страница 684: ...Rev 5 00 09 03 page 640 of 760 ...
Страница 700: ...Rev 5 00 09 03 page 656 of 760 ...
Страница 758: ...Rev 5 00 09 03 page 714 of 760 ...
Страница 807: ...SH7709S Group Hardware Manual REJ09B0081 0500O ADE 602 250C ...