/6 Multifunction Device (memory+IO) 2 programmable 8 bit I/O ports; 1 programmable 6 bit I/O port; 1 programmable 14 bit binary counter/timer; Internal . Electronic Devices and circuits – Millman and Halkias – McGraw Hill Publications . 2. Solid State Electronic – Multipurpose Programmable Device. Programmable Peripheral Interface Devices Support chips: , , Devices A multipurpose programmableinterface Designed to be.

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It is splitted into two parts. This is Active Low signal, when it is Low read operation will be start. These lines are divided into two groups. If you wish to download it, please recommend it to your friends in any social system.

8155 Programmable Interface

Ports do not have Handshake or interrupt capability. It can be programmed by mode 0mode 1, mode 2. Feedback 815 Policy Feedback. This is a 8-bit Unlatched buffer Input and an Output latch. 81155 to interface between data bus with system bus. Port A is working as 8-bit bidirectional.


It is a programmable device. This mode allows bidirectional data transfer over a single 8-bit data bus port A using handshake signals. Both the inputs and outputs are latched. The internal data bus and Outer pins D0-D7 pins are connected in internally.

Programmable Interface

81555 We think you have liked this presentation. These are 8-bit bi-directional buses, connected to data bus for transferring data. Outputs are latchedInputs are mltipurpose not latched. Auth with social network: Published by Jaidyn Tea Modified over 3 years ago. When it is low, then data is transfer from This is Active Low signal, when it is Low Write operation will be start. To make this website work, we log user data and share it with processors.

A BSR word is written for each bit Example: My presentations Profile Feedback Log out. Address signals are A0,A1,and CS.

On one side we have data bus. Share buttons are a little bit lower. The 8 bit data port can be either used as input or output port.


This is used to select the ports. Improved dc driving capability. It is a 8-bit bidirectional Data bus. IO Interfaces and Bus Standards. Registration Forgot your password?

About project SlidePlayer Terms of Service. This is Active Low signal. To use this website, you must agree to our Privacy Policyincluding cookie policy.

In this modetwo 8 bit ports port A and port B and two 4 bit ports port C upper and port Ptogrammable lower are available. Any port can be used as an input or output port. This is used to reset the device.

It can be programmed by mode 0 and mode 1. That means clear control registers. T T L compatible.