![background image](http://html1.mh-extra.com/html/blue-chip/aop-12d/aop-12d_user-manual_2775478032.webp)
Page 26
Detailed Card Installation
Page 26
01270146.doc
Blue Chip Technology Ltd.
DMA Settings
The DMA selection is set on two sets of jumper blocks, JP2 and JP4.
JP4 controls which channel the DAC uses to request Direct Memory Access.
Only channels 1,2 and 3 are available. Jumper JP2 sets the channel on which
the DMA controller acknowledges the request. It is essential that the pattern of
links on the two jumper blocks correspond.
The example below shows the link settings for the DAC to generate DRQ1 and
receive DACK1.
1
2
3
1
2
3
Summary of Contents for AOP-12D
Page 1: ...AOP 12D Multi Function Analogue Output Card User Manual...
Page 2: ......