參數(shù)資料
型號: MD8412B
廠商: Electronic Theatre Controls, Inc.
英文描述: LINK(IEEE 1394)
中文描述: 鏈接(1394)
文件頁數(shù): 84/114頁
文件大?。?/td> 577K
代理商: MD8412B
MD8412B
72
FUJIFUILM MICRODEVICES CO., LTD.
Ver 1.10
Similarly, operation is the same when data are read from the ARF buffer by DMA transfer. Data are read from the upper
area of 32 bit.
Operation is the same as for 16-bit width. SelectDreq=00b is set to make ATF an object of DMA transfer, and DMAW-
idth=01b is set to designate16-bit width transfer. When DMAC is started and DreqEn is turned "1" thereafter, a DREQ
request is issued toward the DMAC, and DMA transfer is started. In this case, the first 1 Word is stored in 31~16 bit of the
31
ATF Register
0
7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0
1’st byte
31
ATF Register
0
7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0
2’nd byte
31
ATF Register
0
7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0
3’rd byte
31
ATF Register
0
7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0
4’th byte
Figure 5-3-8 Register Operation (ATF) for 8-Bit Width DMA Access
31
ARF Register
0
7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0
1’st byte
31
ARF Register
0
7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0
2’nd byte
31
ARF Register
0
7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0
3’rd byte
31
ARF Register
0
7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0 7 - - - - - - - - - - 0
4’th byte
Figure 5-3-9 Register Operation (ARF) for 8-Bit Width DMA Access
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