Week 8 Self Assessment Quiz Questions

 1.[10] Describe in detail how a JTAG scan chain can be used to determine if chips on a
        PCB are connected correctly.

 2.[2] Name two other uses of JTAG in embedded systems.

 3.[4] Describe what a bootloader is and where it resides. 

 4.[2] What AVR instruction is absolutely required for a bootloader to work. 

 5.[2] AVR program memory can be configured into two separate areas.  What are they?

 6.[4] What configurable aspect of the AVR cannot be changed by a bootloader 
       or application program?

 7.[2] Give the equation for power consumption in static CMOS (neglecting leakage).
 
 8.[2] What is the principle way to save energy in synchronous CMOS systems.

 9.[2] What AVR instruction allows it to enter a lower power mode?

10.[2] After a hardware reset, what values are loaded into the AVR I/O registers?

11.[4] What are the 5 sources of interrupts in the AVR?

12.[2] What is the purpose of the brown out detector? 

13.[2] What is the purpose of the watchdog timer? 

14.[2] What happens if a watchdog timer expires? 

15.[2] What are the differences in the watchdog timer safety levels?