Section 11 Direct Memory Access Controller (DMAC)
Rev. 2.00 Mar 09, 2006 page 467 of 906
REJ09B0292-0200
11.2.3
DMA Transfer Count Registers 0 and 1 (TCR0, TCR1)
Bit:
31
30
29
28
27
26
25
24
—
—
—
—
—
—
—
—
Initial value:
0
0
0
0
0
0
0
0
R/W:
R
R
R
R
R
R
R
R
Bit:
23
22
21
…
3
2
1
0
…
Initial value:
—
—
—
…
—
—
—
—
R/W:
R/W
R/W
R/W
…
R/W
R/W
R/W
R/W
DMA transfer count registers 0 and 1 (TCR0 and TCR1) are 32-bit read/write registers that
specify the DMA transfer count. The lower 24 of the 32 bits are valid. The value is written as 32
bits, including the upper eight bits. The number of transfers is 1 when the setting is H'00000001,
16,777,215 when the setting is H'00FFFFFF and 16, 777,216 (the maximum) when H'00000000 is
set. During a DMA transfer, these registers indicate the remaining transfer count.
Set the initial value as the write value in the upper eight bits. These bits always read 0. Values are
retained in a reset, in standby mode, and when the module standby function is used. For 16-byte
transfers, set the count to 4 times the number of transfers. Operation is not guaranteed if an
incorrect value is set.
11.2.4
DMA Channel Control Registers 0 and 1 (CHCR0, CHCR1)
Bit:
31
30
29
…
19
18
17
16
—
—
—
…
—
—
—
—
Initial value:
0
0
0
…
0
0
0
0
R/W:
R
R
R
…
R
R
R
R
Bit:
15
14
13
12
11
10
9
8
DM1
DM0
SM1
SM0
TS1
TS0
AR
AM
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
7
6
5
4
3
2
1
0
AL
DS
DL
TB
TA
IE
TE
DE
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R/(W)
*
R/W
Note: Only 0 can be written, to clear the flag.
Содержание SH7616
Страница 10: ...Rev 2 00 Mar 09 2006 page x of xxvi ...
Страница 132: ...Section 2 CPU Rev 2 00 Mar 09 2006 page 106 of 906 REJ09B0292 0200 ...
Страница 568: ...Section 12 16 Bit Free Running Timer FRT Rev 2 00 Mar 09 2006 page 542 of 906 REJ09B0292 0200 ...
Страница 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Страница 662: ...Section 14 Serial Communication Interface with FIFO SCIF Rev 2 00 Mar 09 2006 page 636 of 906 REJ09B0292 0200 ...
Страница 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Страница 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Страница 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Страница 935: ...SH7616 Hardware Manual ...