Datasheet

138

ATmega8535(L)

2502K–AVR–10/06

Note: 1. See “Alternate Functions Of Port B” on page 60 for a detailed description of how to

define the direction of the user defined SPI pins.

The following code examples show how to initialize the SPI as a Master and how to per-

form a simple transmission. DDR_SPI in the examples must be replaced by the actual

Data Direction Register controlling the SPI pins. DD_MOSI, DD_MISO and DD_SCK

must be replaced by the actual data direction bits for these pins. For example, if MOSI is

placed on pin PB5, replace DD_MOSI with DDB5, and DDR_SPI with DDRB.

Table 56. SPI Pin Overrides

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Pin Direction, Master SPI Direction, Slave SPI

MOSI User Defined Input

MISO Input User Defined

SCK User Defined Input

User Defined Input

Assembly Code Example

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