AN1043 Description
The I/O port is highly configurable for maximum flexibility. Figure 1 is a simplified block diagram of an I/O port pin. The port can either drive logic levels on the pin, or read logic levels from the pad.
AN1043 Key Features
- MCP23008: I2C™ Interface
- MCP23S08: SPI Interface The MCP23X17 are 16-bit GPIO Expanders
- MCP23017: I2C Interface
- MCP23S17: SPI Interface The functions and features of the MCP23X08 and MCP23X17 are basically the same, except where oth
- I/O Port Description
- 8/16-Bit Mode (MCP23X17 only)
- Interrupt Features
- Mapping Interrupts
- Mirroring Interrupts (MCP23X17 only)
- Servicing Interrupts