For proper reset operation, RESET signal must be held high at least for ( ) machine cycles.
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Port ( ) needs external pull-up resistor when used for I/O operation.
A. P0
B. P1
C. P2
D. P3
The stack operations in the 8051 are ( ).
A. last in first out
B. first in first out
C. last in last out
The 8051 has ( ) on-chip program memory.
A. 1K bytes
B. 2K bytes
C. 4K bytes
D. 64K bytes
The 8051 has ( ).
A. 4 banks of 4 registers
B. 2 banks of 16 registers
C. 8 banks of 4 registers
D. 4 banks of 8 registers
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