Книга: Introduction to Microprocessors and Microcontrollers
Quiz time 15
Quiz time 15
In each case, choose the best option.
1 An 8-bit microcontroller has:
(a) an 8-bit data bus.
(b) eight ports.
(c) an 8-bit address bus.
(d) eight internal registers.
2 Compared with the Pentium 4, a microcontroller:
(a) is faster.
(b) consumes less current.
(c) is more complex.
(d) is larger.
3 watchdog circuit prevents:
(a) damage due to excessively high supply voltages.
(b) an overrun in timer/counter circuits.
(c) burglars.
(d) wastage of power while the microcontroller is not being used.
4 It is NOT essential for a microcontroller circuit to include:
(a) registers.
(b) a reset pin.
(c) some memory.
(d) a crystal.
5 The term ‘ISR’ refers to an:
(a) immediate service register.
(b) internal system reset.
(c) interrupt service routine.
(d) instruction set register.
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