DM6814 Hardware Manual - RTD Embedded Technologies, Inc.
DM6814 Hardware Manual - RTD Embedded Technologies, Inc.
DM6814 Hardware Manual - RTD Embedded Technologies, Inc.
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Register Description Read Function Write Function<br />
Address *<br />
(Decimal)<br />
Digital I/O Port 0 Read Port 0 digital input lines Program Port 0 digital output lines BA + 0<br />
Digital I/O Port 1 Read Port 1 digital input lines Program Port 1 digital output lines BA + 1<br />
Port 0 Clear/<br />
Direction/Mask/Compare<br />
Clear digital IRQ status flag/read<br />
Port 0 direction, mask or compare<br />
register (dependent on BA + 3)<br />
Clear digital chip/program Port 0<br />
direction, mask or compare register<br />
(dependent on BA + 3) BA + 2<br />
Read Digital IRQ Status/<br />
Set Digital Control Register Read digital interrupt status word Program digital control register BA + 3<br />
<br />
<br />
Register Description Read Function Write Function<br />
Address *<br />
(Decimal)<br />
Digital I/O Port 2 Read Port 2 digital input lines Program Port 2 digital output lines BA + 4<br />
Digital I/O Port 3 Read Port 3 digital input lines Program Port 3 digital output lines BA + 5<br />
Port 2 Clear/<br />
Direction/Mask/Compare<br />
Clear digital IRQ status flag/read<br />
Port 2 direction, mask or compare<br />
register (dependent on BA + 7)<br />
Clear digital chip/program Port 2<br />
direction, mask or compare register<br />
(dependent on BA + 7) BA + 6<br />
Read Digital IRQ Status/<br />
Set Digital Control Register Read digital interrupt status word Program digital control register BA + 7<br />
<br />
Register Description Read Function Write Function<br />
Address *<br />
(Decimal)<br />
Digital I/O Port 4 Read Port 4 digital input lines Program Port 4 digital output lines BA + 8<br />
Digital I/O Port 5 Read Port 5 digital input lines Program Port 5 digital output lines BA + 9<br />
Port 4 Clear/<br />
Direction/Mask/Compare<br />
Clear digital IRQ status flag/read<br />
Port 4 direction, mask or compare<br />
register (dependent on BA + 11)<br />
Clear digital chip/program Port 4<br />
direction, mask or compare register<br />
(dependent on BA + 3) BA + 10<br />
Read Digital IRQ Status/<br />
Set Digital Control Register Read digital interrupt status word Program digital control register BA + 11
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