In 8255A the ____ is controlled by control registers

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• 8255A contains_________ ports each of 8 bit lines
• In 8255A __________ is used for input operation
• In 8255A _________ is used for handshaking operation
• In 8255A, there are _________ I/o lines
• The 8255A is available with ________
• 8255A operates with ________ power supply
• There are ________ address bus in 8255A
• The _________ input to 8255A is usually activated by Microprocessor in system
• _____ has certain signal requirements write into and read from its registers
• The 80386DX has both 32 bit internal registers ______ external data bus