Section 14 Direct Memory Access Controller (DMAC)
Rev. 1.00 Oct. 01, 2007 Page 586 of 1956
REJ09B0256-0100
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
Note: DMA transfer is stopped when an NMI interrupt is
input. After returning from the NMI interrupt
routine, set all channels again, and then start the
DMA transfer.
0
DME
0
R/W
DMA Master Enable
Enables or disables DMA transfers on all channels. 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 are
terminated.
0: Disables DMA transfers on all channels
1: Enables DMA transfers on all channels
Note: To abort the DMA transfer when the on-chip
peripheral module request mode is set for any of
the channels specified by DMAOR (channel 0 to
5), clear the DE bit to 0 while the DMA transfer
request from the corresponding peripheral
module is cleared.
Note:
*
Writing 0 is possible to clear the flag.
Содержание SH7763
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Страница 122: ...Section 2 Programming Model Rev 1 00 Oct 01 2007 Page 56 of 1956 REJ09B0256 0100 ...
Страница 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
Страница 170: ...Section 4 Pipelining Rev 1 00 Oct 01 2007 Page 104 of 1956 REJ09B0256 0100 ...
Страница 282: ...Section 7 Caches Rev 1 00 Oct 01 2007 Page 216 of 1956 REJ09B0256 0100 ...
Страница 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Страница 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Страница 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Страница 686: ...Section 14 Direct Memory Access Controller DMAC Rev 1 00 Oct 01 2007 Page 620 of 1956 REJ09B0256 0100 ...
Страница 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Страница 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
Страница 752: ...Section 18 Power Down Mode Rev 1 00 Oct 01 2007 Page 686 of 1956 REJ09B0256 0100 ...
Страница 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Страница 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Страница 1060: ...Section 23 Gigabit Ethernet Controller GETHER Rev 1 00 Oct 01 2007 Page 994 of 1956 REJ09B0256 0100 ...
Страница 1062: ...Section 24 IP Security Accelerator SECURITY Rev 1 00 Oct 01 2007 Page 996 of 1956 REJ09B0256 0100 ...
Страница 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Страница 1184: ...Section 27 Serial Communication Interface with FIFO SCIF Rev 1 00 Oct 01 2007 Page 1118 of 1956 REJ09B0256 0100 ...
Страница 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Страница 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Страница 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Страница 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
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Страница 2026: ...SH7763 Hardware Manual ...