Class ArchAVR_TWI

• Defined in File arch_avr_twi.h

Inheritance Relationships

Base Types

• public Peripheral (Class Peripheral)

• public SignalHook (Class SignalHook)

Class Documentation

class ArchAVR_TWI : public Peripheral, public SignalHook

Implementation of a TWI model for the AVR series.

Features:

• Host/client mode

• data order, phase and polarity settings have no effect

• write collision flag not supported

See also

sim_twi.h

Public Functions

ArchAVR_TWI(uint8_t num, const ArchAVR_TWIConfig &config)

virtual bool init(Device &device) override

Virtual method called when the device is initialised. This is where the peripheral can allocate its I/O registers, interrupts or connect signals.

Returns:

boolean indicates the success of all allocations.

virtual void reset() override

Virtual method called when the device is reset. Note that resetting I/O registers is only necessary here if their reset value is not zero.

virtual bool ctlreq(ctlreq_id_t req, ctlreq_data_t *data) override

Virtual method called for a CTL request. The method must return true if the request has been processed.

virtual void ioreg_write_handler(reg_addr_t addr, const ioreg_write_t &data) override

Virtual method called when the CPU is writing a I/O register allocated by this peripheral. The value has already been written.

Parameters:

• addr – the register address in I/O space

• value – the new register content

virtual void raised(const signal_data_t &sigdata, int hooktag) override

Pure virtual callback called during signal raises.

Parameters:

• sigdata – Data structure passed on when raising a signal

• hooktag – integer passed on when connecting a hook to a signal. For hooks connected to several signals, it provides a mean to identify the caller.