MICROPROCESSOR AND MICROCONTROLLER

PIC MICROCONTROLLER

ARCHITECTURE OF 8085

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
MCLR STANDS FOR
A
MASTER CONTROLLED RESET
B
MASTER CONTROLLED RESTART
C
MASTER CLEAR RESET
D
MASTER CLEAR RESTART
Explanation: 

Detailed explanation-1: -MCLR:-The Master Clear pin is an optional external reset that is activated by pulling the pin low. The MCLR pin can be setup as an standard digital input pin or be enabled as an external reset pin.

Detailed explanation-2: -The MCLR pin provides two specific device functions: Device Reset, and Device Programming and Debugging. If programming and debugging are not required in the end application, a direct connection to V DD may be all that is required.

Detailed explanation-3: -During a LVD reset, the RESET pin is held low, thus permitting the MCU to reset other devices. After the device is powered on the supply voltage starts increasing. when the supply voltage reaches around 1.1V, the internal pull-up on the RESET pin is enabled and the core is initial-ized.

Detailed explanation-4: -Because the microcontroller must differenti‑ ate between normal and programming mode, the MCLR pin usually reaches a voltage of approximately 12V to en‑ ter programming mode.

Detailed explanation-5: -By setting the WDT (Watchdog Timer) without disabling periodically (not calling the CLRWDT instruction), your PIC will reset after a short delay. By calling a recursive function that will cause an internal stack overflow. It has depth of 8 so this will be rapid.

There is 1 question to complete.