Q. The transmission unit does not require assistance from processor if once a byte for transmission is written to

View solution

Q. The common unit shared by the receiver unit and transmission unit of serial communication unit is

View solution

Q. During serial reception, the buffer that receives serial bits and converts to a byte is

View solution

Q. If SM0=1, SM1=0, then the transceiver selected is

View solution

Q. If the microcontroller is expected to communicate in a multiprocessor system, then the required condition is

View solution

Q. In mode 2, the baud rate depends only on

View solution

Q. The mode that offers the most secured parity enabled data communication at lower baud rates is

View solution

Q. The power control register is

View solution

Q. The state of signals in idle mode is

View solution

Q. To come out of idle mode, the external interrupt that is enabled is

View solution

Q. The microcontroller enters into power down mode when

View solution

Q. The clock signal is disabled to all parts of 8051 in

View solution

Q. During power down to save battery, the supply voltage can be reduced to a value of

View solution

Q. The signal that only pulls the microcontroller(8051) out of the power down mode is

View solution

Q. The state of signals in power down mode is

View solution

Q. In power down mode,

View solution

Q. The SMOD bit is used to

View solution