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SH7243 Datasheet(PDF) 437 Page - Renesas Technology Corp

Part # SH7243
Description  Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family
PDF  1726 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7243 Datasheet(HTML) 437 Page - Renesas Technology Corp

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Section 10 Direct Memory Access Controller (DMAC)
Rev. 1.00 Jun. 26, 2008 Page 407 of 1692
REJ09B0393-0100
10.3.9
DMA Extension Resource Selectors 0 to 3 (DMARS0 to DMARS3)
The DMA extension resource selectors (DMARS) are 16-bit readable/writable registers that
specify the DMA transfer sources from peripheral modules in each channel. DMARS0 is for
channels 0 and 1, DMARS1 is for channels 2 and 3, DMARS2 is for channels 4 and 5, and
DMARS3 is for channels 6 and 7. Table 10.4 shows the specifiable combinations.
DMARS can specify transfer requests from two USB sources, one RCAN source, two SSU
sources, two SCIF sources, two IIC3 sources, one A/D converter source, five MTU2 sources, and
two CMT sources.
DMARS is initialized to H'0000 by a reset and retains the value in software standby mode and
module standby mode.
• DMARS0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0000000000000000
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
Initial value:
R/W:
CH1 MID[5:0]
CH1 RID[1:0]
CH0 RID[1:0]
CH0 MID[5:0]
• DMARS1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0000000000000000
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
Initial value:
R/W:
CH3 MID[5:0]
CH3 RID[1:0]
CH2 RID[1:0]
CH2 MID[5:0]
• DMARS2
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0000000000000000
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
Initial value:
R/W:
CH5 MID[5:0]
CH5 RID[1:0]
CH4 RID[1:0]
CH4 MID[5:0]
• DMARS3
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0000000000000000
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
Initial value:
R/W:
CH7 MID[5:0]
CH7 RID[1:0]
CH6 RID[1:0]
CH6 MID[5:0]



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