Which of the following statements regarding the microprocessor 8085 is NOT correct?
1
It has serial I/O control, which allows serial communication.
2
It has a mechanism by which it is possible to increase its interrupt handling capacity.
3
It can be used to implement three chip microcomputers with supporting I/O devices like IC 8155 and IC 8355.
4
It does not provide control signal (IO/M, RW, WR) to control the bus cycles, hence external bus controller is required.