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Assembly Language Programming

memorize.ai (lvl 286)

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12 cards

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Section 1

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Flash EPROM

Front

1 / 12

Go R Programming Language

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Last updated

6 years ago

Date created

Mar 14, 2020

Cards (12)

Section 1

(12 cards)

Flash EPROM

Front

- it can be recorded and erased electrically - it retains its contents when powered off.

Back

Special-Function registers

Front

- Controls the operation of the PIC

Back

Two input-output ports

Front

-Port A and Port B - port and pin can be set individually as an input or an output - the bits of each port are numbered starting at 0 - in output mode, bit 4 of port A has an open collector (or open drain) - the rest of outputs are regular CMOS

Back

Main components of PIC 16F84

Front

CPU - Brain of the computer - it reads and executes instructions from the program memory -it can store and retrieve data

Back

PIC16F84

Front

- pic outputs can drive TTL or CMOS logic chips. -each output pin can source or sink 25mA as long as one pin is doing so at a time

Back

PIC

Front

- is a tiny but complete computer -it has a CPU -program memory (PROM) -working memory (RAM) -two input output ports

Back

Clock

Front

- 4Mhz, no lower limit - Low clock freq. save power. - at 30khz, pic can run on 0.1mA

Back

Front

Main Components of PIC 16F84

Back

Power and clock requirements

Front

- 0.1uF capacitor from pib 14V to ground - MCLR pin is connected to V+ through a 10k resistor.

Back

Power and clock requirements

Front

- requires 5-volt supply (4.0-6.0) - PIC consumes 1mA - even less, at low clock speeds

Back

Purpose of working RAM

Front

- also known as 'file register' - 68 bytes located at addresses hex 0C to hex 4F

Back

Special working register' or 'W register'

Front

- the CPU holds the data its working on

Back