In 8279 Strobed input mode, the control line goes low. The data on return lines is strobed in the ___________.

Related MCQs

• In 8279, a scanned sensor matrix mode, if a sensor changes its state, the __________ line goes ___________ to interrupt the CPU
• In 8279 Status Word, data is read when ________ pins are low, and write to the display RAM with ____________ are low.
• Which of the following statements on DRAM are correct? Page mode read operation is faster than RAS read. RAS input remains active during column address strobe. The row and column addresses are strobed into the internal buffers using RAS and CAS inputs respectively
• In 8279, the keyboard entries are de bounced and stored in an _________, that is further accessed by the CPU to read the key codes.
• The 8279 normally provides a maximum of ________ seven segment display interface with CPU.
• The ____ is constructed for the desired mode and return into control register
• The port lines are connected to data lines of the _____
• ________ are transferred on the data lines between microprocessor and internal port or control register
• In 8255, under the I/O mode of operation we have ___________ modes. Which mode will have the following features?
• To interface memory with the microprocessor, connect register the lines of the address bus must be added to address lines of the _______ chip