Hi!
1 Byte has 8 Bits.
Bit 0 = Sunday
Bit 1 = Monday
Bit 2 = Tuesday
Bit 3 = Wednesday
Bit 4 = Thursday
Bit 5 = Friday
Bit 6 = Saturday
Bit 7 = not used
To set the Timer at Sunday, Wednesday, Friday, Saturday you have to set the Byte to 0110 1001
Regards.
Stefan Hantschel