Class ArchXT_MiscRegCtrl

Inheritance Relationships

Base Type

Class Documentation

class ArchXT_MiscRegCtrl : public Peripheral

Implementation of a controller for misc registers for XT core series.

This controller implements miscellaneous registers:

  • General purpose registers

  • Signature row

  • Device ID

  • Revision ID

  • Calibration registers

  • Serial number

  • Configuration Control Protection (no effect)

CTLREQs supported:

  • AVR_CTLREQ_WRITE_SIGROW : writes data to the signature row

Public Functions

ArchXT_MiscRegCtrl(const ArchXT_MiscConfig &config)
virtual ~ArchXT_MiscRegCtrl()
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 uint8_t ioreg_read_handler(reg_addr_t addr, uint8_t value) override

Virtual method called when the CPU is reading a I/O register allocated by this peripheral. The value has not been read yet so the module can modify it before the CPU gets it.

Parameters:

addr – the register address in I/O space

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