*085 microprocessor ar chitecture

1. Microprocessor and Microcontroller
[ EVOLUTION of µP]
TAPASWINI PATTNAIK
ASSTISTANT PROCESSOR
DEPT OF ETC
C. V. RAMAN GLOBAL UNIVERSITY
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2. EVOLUTIONS OF MICROPROCESSOR
Microprocessor Data width
(NO of data
bits)
No of
Address bits
Memory
Capacity
Clock
Frequency
(CPU Clock
rate)
Intel 4004(10µm) 4 Bits 10 2 10 =1024 bytes
(1K Byte)
750 KHz
8085(3µm) 8 bits 16 2 16=64 KB 3MHz
8086(3µm) 16 Bits 20 2 20=1MB(1024
KB)
5-10 MHz
Pentium(0.8µm) 32 Bits 32 2 32=4GB 60-200 MHz
Pentium 4(180nm) 64 bits 36 2 36=64 GB 1.3-3.2 GHZ
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3. Intel 4004
Pentium4
Intel 8086
Intel 8085
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5. Lets have a POLL
https://www.menti.com/p8g6txiyuh
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6. RESULT POLL
 https://www.mentimeter.com/s/6c22fc2f7676b430109aa7ab48bb8f
79/5cd1b0c3a961
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7. 8085 Microprocessor
Features:
8-bit Microprocessor(µp)
16 Address line (A0-A15) and 8
data lines(D0-D7)
Memory Capacity is 64KB ( 216 )
Clock frequency is 3MHz and
Oscillating Frequency is 6MHz
Time period is 320 ns(1/f)
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8. BUS ORGANISATION:
 BUS is the set of Interconnecting lines between microprocessors and
peripheral.
 It helps the microprocessor to communicate with peripheral I/O or
Memory.
CPU
I/O
MEMORY
BUS
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9. Basic Operations of µp: 9
Memory read- Read data from memory
Memory Write-Write data to memory
I/O read-read data from Input/output
I/O Write-Write data to Input/output
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3
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11.  Step 1: Identify the peripheral(Memory or I/O)
 Step 2: Transfer Binary Information
 Step 3:provide time and Synchronization Signal
To Communicate the peripherals µp needs
following steps

12. Types of BUS: 12
ADDRESS BUS
CONTROL BUS
DATA BUS

13.  Address bus (Unidirectional)- carries memory addresses from
the processor to other components such as primary storage
and input/output devices.
 Data bus (Bidirectional)- carries the data between the
processor and other components.
 Control bus - carries control signals from the processor to
other components.
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https://app.sli.do/event/zg8qcc8z

16. You tube link:
https://youtu.be/lSVkXdWbYvE
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