www.pudn.com > spi.rar > SPI_def.h


//----------------------------------------------------------------------------- 
// SPI_defs.h 
//----------------------------------------------------------------------------- 
// Copyright 2001 Cygnal Integrated Products, Inc. 
// 
// AUTH: BD 
// DATE: 7 DEC 01 
// 
// This file defines the pins used for the SPI device. 
// The SPI device is mapped to pins P0.0 - P0.3, but can be modified to map to 
// any of the available GPIO pins on the device. 
// 
#ifndef SPI_DEFS 
#define SPI_DEFS 
sbit MOSI = P0^0; // Master Out / Slave In (output) 
sbit MISO = P0^1; // Master In / Slave Out (input) 
sbit SCK = P0^2; // Serial Clock (output) 
sbit NSS = P0^3; // Slave Select (output to chip select) 
#endif