adc-44d ETC-unknow, adc-44d Datasheet - Page 63

• Manufacturer Part Number: adc-44d
• Description: Multi-function Analogue Input/output Card
• Manufacturer: ETC-unknow

Appendix C
Clear Byte Pointer Flip Flop
Any write to this port resets the byte pointer flip flop. This ensures that the first
write to the Start Address or Transfer Length registers will go into the LSB of
that register.
DMA Transfer Start Address
Sets the 16 bit start address for the DMA transfer, send LS Byte first.
Transfer Length
Sets the 16 bit length of the DMA transfer, send LS Byte first.
Page Register
Sets the upper four bits of the physical memory address of the DMA transfer.
Blue Chip Technology Ltd.
Port 0CH
Port 00H, 02H, 04H, 06H
Port 01H, 03H, 05H, 07H
Port 83H, 81H, 82H
How to Use DMA
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