Abstract

The _MMIO_BYTE() is a macro that dereferences a byte of data at the specified address.

Source Code

The _MMIO_BYTE() is defined in hardware/tools/avr/avr/include/avr/sfr_defs.h as below.

1

#define _MMIO_BYTE(mem_addr) (*(volatile uint8_t *)(mem_addr))

The input is mem_addr and dereferences its contents.

Version

7.3.0-atmel3.6.1-arduino7

Last Update

May 15, 2021