Section 14 Direct Memory Access Controller (DMAC)
Rev.1.00 Dec. 13, 2005 Page 583 of 1286
REJ09B0158-0100
Bit Bit
Name
Initial
Value R/W Descriptions
1 NMIF
0 R/(W)
*
NMI Flag
Indicates that an NMI interrupt occurred. If this bit is set,
DMA transfer is disabled even if the DE bit in CHCR
and the DME bit in DMAOR are set to 1.
When the NMI is input, the DMA transfer in progress
can be done in at least one transfer unit. When the
DMAC is not in operational, the NMIF bit is set to 1
even if the NMI interrupt was input.
0: No NMI interrupt
[Clearing condition]
Writing NMIF = 0 after NMIF = 1 read
1: NMI interrupt occurs
0
DME
0
R/W
DMA Master Enable
Enables or disables DMA transfers on all channels 0 to
5 (DMAOR0) or 6 to 11 (DMAOR1). If the DME bit and
the DE bit in CHCR are set to 1, transfer is enabled. In
this time, all of the bits TE in CHCR, NMIF, and AE in
DMAOR must be 0. If this bit is cleared during transfer,
transfers in all channels 0 to 5 (DMAOR0) or 6 to 11
(DMAOR1) are terminated.
0: Disables DMA transfers on all channels
(Channels 0 to 5 by DMAOR0, 6 to 11 by DMAOR1)
1: Enables DMA transfers on all channels
(Channels 0 to 5 by DMAOR0, 6 to 11 by DMAOR1)
Note:
*
Writing 0 is possible to clear the flag.
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 ...
Страница 1328: ...Appendix Rev 1 00 Dec 13 2005 Page 1278 of 1286 REJ09B0158 0100 ...
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