Section 24 Multimedia Card Interface (MMCIF)
Rev.1.00 Dec. 13, 2005 Page 900 of 1286
REJ09B0158-0100
24.3.18 DMA
Control Register (DMACR)
DMACR sets DMA request signal output. DMAEN enables or disables a DMA request signal.
The DMA request signal is output based on a value that has been set to SET2 to SET0.
Bit:
Initial value:
R/W:
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
R/W
DMAEN
SET2
SET1
SET0
R/W
R
R
R
R/W
R/W
R/W
AUTO
Bit Bit
Name
Initial
Value R/W Description
7 DMAEN
0 R/W
DMA
Enable
0: Disables output of DMA request signal.
1: Enables output of DMA request signal.
6
AUTO
0
R/W
Auto Mode for pre-defined multiple block transfer using
DMA transfer
0: Disable auto mode
1: Enable auto mode
5 to 3
All
0
R
Reserved
These bits are always read as 0. The write value should
always be 0.
2
1
0
SET2
SET1
SET0
0
0
0
R/W
R/W
R/W
DMA Request Signal Assert Condition
Sets DMA request signal assert condition.
000: Not output
001: FIFO remained data is 1/4 or less of FIFO capacity.
010: FIFO remained data is 1/2 or less of FIFO capacity.
011: FIFO remained data is 3/4 or less of FIFO capacity.
100: FIFO remained data is 1 byte or more.
101: FIFO remained data is 1/4 or more of FIFO capacity.
110: FIFO remained data is 1/2 or more of FIFO capacity.
111: FIFO remained data is 3/4 or more of FIFO capacity.
Содержание SH7780 Series
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Страница 196: ...Section 6 Floating Point Unit FPU Rev 1 00 Dec 13 2005 Page 146 of 1286 REJ09B0158 0100 ...
Страница 292: ...Section 9 L Memory Rev 1 00 Dec 13 2005 Page 242 of 1286 REJ09B0158 0100 ...
Страница 450: ...Section 11 Local Bus State Controller LBSC Rev 1 00 Dec 13 2005 Page 400 of 1286 REJ09B0158 0100 ...
Страница 492: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Dec 13 2005 Page 442 of 1286 REJ09B0158 0100 ...
Страница 674: ...Section 15 Clock Pulse Generator CPG Rev 1 00 Dec 13 2005 Page 624 of 1286 REJ09B0158 0100 ...
Страница 692: ...Section 16 Watchdog Timer and Reset Rev 1 00 Dec 13 2005 Page 642 of 1286 REJ09B0158 0100 ...
Страница 726: ...Section 18 Timer Unit TMU Rev 1 00 Dec 13 2005 Page 676 of 1286 REJ09B0158 0100 ...
Страница 1004: ...Section 24 Multimedia Card Interface MMCIF Rev 1 00 Dec 13 2005 Page 954 of 1286 REJ09B0158 0100 ...
Страница 1032: ...Section 25 Audio Codec Interface HAC Rev 1 00 Dec 13 2005 Page 982 of 1286 REJ09B0158 0100 ...
Страница 1070: ...Section 26 Serial Sound Interface SSI Module Rev 1 00 Dec 13 2005 Page 1020 of 1286 REJ09B0158 0100 ...
Страница 1104: ...Section 27 NAND Flash Memory Controller FLCTL Rev 1 00 Dec 13 2005 Page 1054 of 1286 REJ09B0158 0100 ...
Страница 1150: ...Section 28 General Purpose I O GPIO Rev 1 00 Dec 13 2005 Page 1100 of 1286 REJ09B0158 0100 ...
Страница 1184: ...Section 29 User Break Controller UBC Rev 1 00 Dec 13 2005 Page 1134 of 1286 REJ09B0158 0100 ...
Страница 1266: ...Section 31 Electrical Characteristics Rev 1 00 Dec 13 2005 Page 1216 of 1286 REJ09B0158 0100 ...
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