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All register types a I/O expander might support
Source position: fpgpio.pas.bak line 165
type TRegisterType = ( |
rtValue, |
rtDirection, |
rtActiveLow, |
rtInterruptFlag, |
rtInterruptValue, |
rtIntEnable, |
rtIntDefVal, |
rtIntCtrl, |
rtPullup, |
rtPulldown |
); |
This enumeration contains all possible types of registers an I/O expander might have. These types are named by usage. Thus a microcontroller may have seperate registers for setting and reading a GPIO pins value. A register type is converted to an address which an I/O expander can understand within TGpioRegisterController.GetRegister.
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Address of a requested register |