To interface external EPROM memory for applications, it is necessary to demultiplex the address/data lines of the 8051.

The 8051 has ________ 16-bit counter/timers.

The address space of the 8051 is divided into four distinct areas: internal data, external data, internal code, and external code.

The designs of a centigrade thermometer and a PWM speed-control circuit can be implemented by the 8051.

MOV A, @ R1 will:

Data transfer from I/O to external data memory can only be done with the MOV command.

An alternate function of port pin P3.4 in the 8051 is:

The ADC 0804 is an analog-to-digital converter that provides 8-bit output resolution that can be directly interfaced to a microcontroller.

Writing counter/loop programs is much more difficult with the introduction of the DJNA and the CJNE instructions.

A Celsius thermometer is an application for the 8051 microcontroller.

The following command will copy the accumulator to the location whose address is 23H:
MOV 23H,A

Data transfer from I/O to external data memory can only be done with the MOVX command.

A label is used to name a single line of code.

Which of the following commands will move the number 27H into the accumulator?

Both registers TL0 and TL1 are needed to start Timer 0.

The 8051 is a 40-pin IC. Twenty-two pins are needed for the four I/O ports.

The RST pin requires a HIGH to reset the 8051 microcontroller.

The special function registers can be referred to by their hex addresses or by their register names.

The start-conversion on the ADC0804 is done by using the:

Up to 65K of code memory and 65K of data memory can be added to any of the 8051 family members.