rtd DM5816, User Manual

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DM5816/DM6816 RTD Embedded Technologies, Inc.
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Chapter 4 – I/O Mapping
This chapter provides a complete description of the I/O map for the DM5816, general programming
information, and how to set and clear bits in a port.
Defining the I/O Map
The I/O map for the DM5816 is shown in Table 4-1 below. As shown, the module occupies 20
consecutive I/O port locations.
The base address (designated as BA) can be selected using DIP switch S1, located on the edge of the
module, as described in Chapter 1, Module Settings . This switch can be accessed without removing the
module from the stack. The following sections describe the register contents of each address used in the
I/O map.