EXAMPLE4.18\FILE ...........\SPI_2.DSN ...........\SPI_2.PWI ...........\SPI_U1a.C ...........\SPI_U1a.cof ...........\SPI_U1a.hex ...........\SPI_U1a.hxl ...........\SPI_U1a.lst ...........\SPI_U1a.sdb ...........\SPI_U2a.C ...........\SPI_U2a.cof ...........\SPI_U2a.hex ...........\SPI_U2a.hxl ...........\SPI_U2a.lst ...........\SPI_U2a.sdb EXAMPLE4.18