On our MCS board ______is used to control the input port. A) address decoding B) IOWR C) OC D) IORD
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On our MCS board ______is used to control the input port.
A) address decoding
B) IOWR
C) OC
D) IORD
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- signal is used when the address and .…......... data bus is requested by other devices to perform a specific task RD/10 O WR/IO Hold OQue . The code sent by the device in vectored interrupt is _____ long. i) upto 16 bits ii) upto 32 bits iii) upto 24 bits iv) 4-8 bitsMemory Microcontrollers What is the space in bytes that is reserved to store each service routine for the interruptions sources in the AT89C51AC3? If a service routine of an interrupt source is larger than the available space, how must you allocate it in the non-volatile memory?
- On our board ROM is activated by [choose all that apply]: a) ROMWR b) Data bus c) IOWR d) ROMRD e) ROMSEL f) IORDQue. When the R/W bit of the status register of the DMA controller is set to 1. i) Read operation is performed ii) Write operation is performed iii) Read & Write operation is performed iv) None of the mentionedSTA is used to store the contents of 16 bit accumulator to a 16 bit memory location to store the contents of 16 bit accumulator to an 8 bit memory location to store the contents of 8 bit accumulator to a 16 bit memory location to store the remainder at 16 bit memory location
- During an I/O write: [select all that are true] The address is sent in to the MPU Data flows to the MPU The address is sent out by the MPU Data flows out from the MPUq .The code sent by the device in vectored interrupt is _____ long.i) upto 16 bitsii) upto 32 bitsiii) upto 24 bitsiv) 4-8 bitsThe extension bus may be used to connect external devices to the CPU if the appropriate interface cards are installed. Why?