Clone Secured PIC16F1826T Microprocessor Heximal and rewrite the binary file to new MCU PIC16F1826T, the firmware can be readout from protected mcu pic16f1826t;
Once the TXREG register transfers the data to the TSR register (occurs in one TCYCLE), the TXREG is empty and interrupt bit, TXIF (PIR1<4>), is set. The interrupt can be enabled/disabled by setting/clearing enable bit, TXIE (PIE1<4>).
Flag bit, TXIF, will be set, regardless of the state of enable bit, TXIE and cannot be cleared in software. It will reset only when new data is loaded into the TXREG register.
While flag bit, TXIF, indicates the status of the TXREG register, another bit, TRMT (TXSTA<1>), shows the status of the TSR register. TRMT is a read-only bit, which is set when the TSR is empty to attack microcomputer ic microchip pic16f1827. No interrupt logic is tied to this bit, so the user has to poll this bit in order to determine if the TSR register is empty. The TSR is not mapped in data memory, so it is not available to the user.
To set up a Synchronous Master Transmission: