High-Performance SAB 80C517A/83C517A-5 8-Bit CMOS Single ...

SAB 80C517A/83C517A-5Serial InterfacesThe SAB 80C517A has two serial interfaces. Both interfaces are full duplex and receivebuffered. They are functionally identical with the serial interface of the SAB 8051 when workingas asynchronous channels. Serial interface 0 additionally has a synchronous mode. Table 9shows possible configurations and the according baud rates.Table 9Baud Rate GenerationMode Mode 0 –8-BitsynchronouschannelBaudratef O SC =12 MHzf OSC =16 MHzf OSC =18 MHz1MHz1.33 MHz1.5 MHz–––derived from f OSC–Mode Mode 1 Mode B8-BitUART9-BitUARTf OSC =12 MHzf OSC =16 MHzf OSC =18 MHz1 Baud –62.5 kBaud1 Baud –83 kBaud1 Baud –93.7 kBaud183 Baud –375 kBaud244 Baud –500 kBaud2375 Baud –562.5 kBaudderived from Timer 1 10-BitBaudrateGeneratorBaudrateBaudratederivedfrom366 Baud –375 kBaud244 Baud –500 kBaud549 Baud –562.5 kBaud10-BitBaudrateGeneratorMode Mode 2 Mode 3 Mode Af OSC =12 MHzf OSC =16 MHzf OSC =18 MHz187.5 kBaud/375 kBaud250 Baud/500 kBaud281.2 kBaud/562.5 kBaud1 Baud –62.5 kBaud1 Baud –83.3 kBaud1 Baud –93.7 kBaudf OSC/ 2 Timer 1 10-BitBaudrateGenerator183 Baud –75 kBaud244 Baud –500 kBaud275 Baud562.5 kBaud183 Baud –75 kBaud244 Baud –500 kBaud549 Baud –562.5 kBaud10-BitBaudrateGeneratorSemiconductor Group 55