Datasheet

Expander_Read_Byte
Expander_Write_Byte
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MIKROELEKTRONIKA - SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD
Libraries
mikroPASCAL PRO for AVR
CHAPTER 6
Prototype
function Expander_Read_Byte(ModuleAddress : byte; RegAddress :
byte) : byte;
Returns Byte read.
Description
The function reads byte from Port Expander.
Parameters :
-
ModuleAddress: Port Expander hardware address, see schematic at the bot-
tom of this page
- RegAddress: Port Expander's internal register address
Requires Port Expander must be initialized. See Expander_Init.
Example
// Read a byte from Port Expander's register
var read_data : byte;
...
read_data := Expander_Read_Byte(0,1);
Prototype
procedure Expander_Write_Byte(ModuleAddress: byte; RegAddress:
byte; Data_: byte);
Returns Nothing.
Description
Routine writes a byte to Port Expander.
Parameters :
-
ModuleAddress: Port Expander hardware address, see schematic at the bot
tom of this page
- RegAddress: Port Expander's internal register address
-
Data_: data to be written
Requires Port Expander must be initialized. See Expander_Init.
Example
// Write a byte to the Port Expander's register
Expander_Write_Byte(0,1,0xFF);