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

More Questions from The 8051 Microcontroller

• The address space of the 8051 is divided into four distinct areas: internal data, external data, internal code, and external code.
• A label is used to name a single line of code.
• Which of the following instructions will move the contents of register 3 to the accumulator?
• The 8051 is a 40-pin IC. Twenty-two pins are needed for the four I/O ports.
• Different instruction sets must make up for the various members of the 8051 family.
• The RST pin requires a HIGH to reset the 8051 microcontroller.
• Up to 65K of code memory and 65K of data memory can be added to any of the 8051 family members.
• In an 8051 program DA A adjusts the value in the accumulator resulting from an addition into two BCDs.
• Writing counter/loop programs is much more difficult with the introduction of the DJNA and the CJNE instructions.
• Analog output current must be converted into a usable voltage. To perform this current-to-voltage conversion a 700 op amp may be used.

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