4096

1085

921,583

65,535

Register Select (RS)

Enable (EN)

Read/Write (RW)

VEE

A-False, B-True, C-False, D-True

A-True, B-False, C-False, D-True

A-False, B-True, C-True, D-False

A-True, B-False, C-True, D-False

it compares the value of the accumulator with 0FH and jumps to the

location where ROW1 label is there if the value is not equal

it masks the bit and then jumps to the label where ROW1 is written

it makes the value of the accumulator 0FH and then jumps at the address

where ROW1 label is written

it compares the value of the accumulator with 0FH and jumps to the

location where ROW1 label is there if the value becomes equal

A-False, B-True, C-False, D-True

A-False, B-False, C-True, D-True

A-True, B-False, C-False, D-True

A-True, B-False, C-True, D-False

256 bytes

32 bytes

128 bytes

64 bytes

Due to multiplexing

of higher order byte of address-data bus

Due to demultiplexing

of higher order byte of address-data bus

Due to demultiplexing

of lower order byte of address-data bus

Due to multiplexing

of lower order byte of address-data bus

1,3,2,4,5

4,3,1,2,5

3,2,1,5,4

4,2,1,3,5

TF0

TF1

INT0

INT1

RD

WR

CS

INTR