The 8051 Microcontroller - General Questions (5)

The total external data memory that can be interfaced to the 8051 is:

The 8051 has ________ parallel I/O ports.

The last 96 locations in the internal data memory are reserved for general-purpose data storage and stack.

The I/O ports that are used as address and data for external memory are:

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

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

When the 8051 is reset and the  line is HIGH, the program counter points to the first program instruction in the:

Device pins XTAL1 and XTAL2 for the 8051 are used for connections to an external oscillator or crystal.