serial input/output (SIO)
A method of communicating data between devices, typically a computer and its peripherals
, the individual data bits being sent sequentially.
What are serial ports used for?
A socket that connects to a serial interface (one bit following another over one line). Serial ports are widely used by
sensors for data acquisition
, and they were standard on early computers for connecting a modem, mouse and other peripherals. Old Macs used the serial port for printers.
What is the purpose of serial input output control?
They both are specially made for Input/Output which is further controlled by software. The
transfer of data is controlled
with the help of two instructions, i.e, SIM and RIM.
What is the purpose of Sid and sod?
Ans: SID (Serial input data line): It is
an input line through which the microprocessor accepts serial data
. SOD (Serial output data line): It is an output line through which the microprocessor sends output serial data.
What is the use of SID and SOD in 8085?
There are 2 serial signals, i.e. SID and SOD and these signals are used for
serial communication
. SOD (Serial output data line) − The output SOD is set/reset as specified by the SIM instruction. SID (Serial input data line) − The data on this line is loaded into accumulator whenever a RIM instruction is executed.
What is serial input and output?
serial input/output (SIO)
A method of communicating data between devices
, typically a computer and its peripherals, the individual data bits being sent sequentially. … Asynchronous methods are generally used with dial-up modems or for general connection of simple serial peripherals.
What do you mean by serial and parallel input output interfacing?
In parallel mode,
each bit has a single wire devoted to it and all the bits are transmitted at the same time
. In serial mode, the bits are transmitted as a series of pulses. Serial interface consists of an I2C bus, SPI bus, or synchronous serial control and data lines.
What are the types of serial ports?
If that’s not enough to confuse you, there are two types of serial ports
— DB9 and DB25
. DB9 is a 9-pin connection, and DB25 is, you guessed it, a 25-pin connection. A serial port can only transmit one bit of data at a time, whereas a parallel port can transmit many bits at once.
Are COM ports still used?
Serial ports, today, are used mostly
for diagnostic communications
, such as out-of-band management for managed devices such as switches, routers, high end audio equipment, UPS and other related power systems, modems for remote connectivity, industrial and commercial power equipment, industrial monitoring systems like …
What is 9-pin serial port used for?
DB9 connectors were commonly used for
serial peripheral devices like keyboards, mice, joysticks, etc
. Also they are used on DB9 cable assemblies for data connectivity. Today, the DB9 has mostly been replaced by more modern interfaces such as USB, PS/2, Firewire, and others.
What is purpose of Sid?
Seafarer’s Identity Document (SID) refers to an international Identity Document under ILO Convention 185 (revised 2003)
used to obtain proof of the bearer’s eligibility for visa waiver, and to identify them as genuine seafarers who may be entitled to transit with their passport at ports and border crossings
, and to …
What are the different types of maskable interrupt?
Maskable and Non-Maskable Interrupts –
INTR, RST 7.5, RST 6.5, RST 5.5
are maskable interrupts in 8085 microprocessor. Non-Maskable Interrupts are those which cannot be disabled or ignored by microprocessor. TRAP is a non-maskable interrupt.
Which state is used in 8085 microprocessor?
The time required by the microprocessor to complete an operation of accessing memory or input/output devices is called machine cycle. One time period of frequency of microprocessor is called
t-state
. A t-state is measured from the falling edge of one clock pulse to the falling edge of the next clock pulse.
Which Accumulator is used for serial output of data?
If this bit = 0, SIM instruction is not being used for serial output of data. In such a case, the MS bit of Accumulator is not having any useful information. If
SOE
bit = 1, the SIM instruction is used for serial output of data.
Which pin of 8085 is used to read data serially?
Microprocessor –
Serial IO
(Serial Output Data,Serial Input Data) 8085 Microprocessor has two Serial Input/Output pins that are used to read/write one bit data to and from peripheral devices.
Which Interrupt has the highest priority?
Explanation: The Non-Maskable Interrupt input pin has the highest priority among all the external interrupts. Explanation:
TRAP
is the internal interrupt that has highest priority among all the interrupts except the Divide By Zero (Type 0) exception.
