Roll No: 219

Question 6: a) Using SPI protocol, draw the voltage/time plot of SCK, MOSI and MISO according to the SPI mode. The data to be transmitted at the master end is your Roll No. and at the slave end it is 056. Select the mode (03) as (Mode = Roll No. \% 4). Refer to following Figure for mode reference. Table 59. CPOL and CPHA Functionality b) Calculate SCL Frequency if the value of TWPS bits ' 10 ' in TWSR register, the value of TWBR register is equal to your roll number. Assume CPU Clock frequency 1MHz