Digital Logic and Microprocessors

The level of the voltage determines the value of the bit.

Here, the 1 bit is encoded as a zero voltage and the 0 bit is encoded as alternative positive and negative voltages.

A Walsh table for 32 stations has 32 chips in the chip sequence.

In a linear code, the r redundant bits (check bits) are computed as a linear function of the m data bits.

To find out the number of bits difference, XOR can be used with two crosswords and counting the number of 1 bits in the result. For example: 1001100 1010100

0011000 (After XORing the above two) Here, two bits are different.

Maskable interrupt (IRQ) is a hardware interrupt that may be ignored by setting a bit in an interrupt mask register's (IMR) bit-mask.

Maskable interrupt (IRQ) is a hardware interrupt that may be ignored by setting a bit in an interrupt mask register's (IMR) bit-mask.

It is the universal loop counter, like the variable i in high level languages.

This register is used for providing its value for PUSH, POP, CALL and RET instructions.

Yes,  both 0 or 1 are binary digits. These can be understand by the computer.

This instruction provides a means of loading any register pair with a two-byte value.

This instruction allows the programmer to accept input data as BCD, process it in the accumulator using essentially hexadecimal arithmetic, and then convert the result back into BCD.

This instruction provides a means of adding a fixed value into the accumulator.

This instruction provides a 1's complement of the 8-bits in the A register.

This instruction provides a means of subtracting a fixed value into the accumulator.