Sets the divider of the SPI clock. On 86Duino, the SPI clock is equal to 100/(2*divider) MHz.
The dividers available are integer values from 1 to 4095. On 86Duino Coding 102 and before, the default divider setting is 800, which sets the SPI clock to 62.5KHz; and from Coding 103, the default setting is changed to 13, which approximately sets the clock to 4MHz like other AVR-based Arduino boards.
divider: integer from 1 to 4095.
The text of the 86Duino reference is a modification of the Arduino reference, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.