sci(uart)-資料下載頁
2025-03-08 07:41本頁面
【正文】 0 = Normal operation 1 = SCI Disabled in Wait mode SCI Registers 2/5見 XS128芯片手冊 P401 Lecture4 Page 37 微控制器開發(fā)技術(shù) SCICR 2 SCI Control Register 2 ILIE Idle Line Interrupt Enable 1 = IDLE IRQ Enabled 0 = IDLE IRQ Disabled TE _ Transmitter Enable 1 = Transmitter Enabled 0 = Transmitter Disabled RE Receiver Enable 1 = Receiver Enabled 0 = Receiver Disabled SBK Send Break 1 = Send Break 0 = Terminate Break RWU Receiver Wakeup 1 = Enter Receiver WakeUP 0 = Exit Receiver WakeUP TCIE Transmit Complete Interrupt Enable 1 = Transmitter Complete IRQ Enabled 0 = Transmitter Complete IRQ Disabled RIE Receiver Interrupt Enable 1 = Receiver IRQ Enabled 0 = Receiver IRQ Disabled TIE Transmitter Interrupt Enable 1 = Transmitter IRQ Enabled 0 = Transmitter IRQ Disabled SCI Registers 3/5 Lecture4 Page 38 微控制器開發(fā)技術(shù) SCISR 1 SCI Status Register 1見 XS128芯片手冊 P409 SCI Registers 4/5 SCISR 2 SCI Status Register 2見 XS128芯片手冊 P410 RAF Receiver Active Status 1 = Receiver Active 0 = Receiver not Active BRK13 Break Transmit Character Length 0 = Break Char is 10 or 11 bits long 1 = Break Char is 13 or 14 bit long TXDIR Transmitter pin direction 0 = TxD pin is input in SingleWire mode 1 = TxD pin is output in SingleWire mode RDRF: Receive data Register Full TC : Transmit Complete TDRE: Transmit data register empty Lecture4 Page 39 微控制器開發(fā)技術(shù) SCIDRH/L SCI Data Register High/Low Note: R8 and T8 are used when 9bit char is required SCI Registers 5/5 Notice: same register for both transmit data and receive data Lecture4 Page 40 微控制器開發(fā)技術(shù) SCI programming Put_Char BRCLR SCI0SR1,$80,* STAB SCI0DRL RTS void Put_Char(char c) { while ( (SCI0SR1 0x80) == 0)。 SCI0DRL = c。 } Lecture4 Page 41 微控制器開發(fā)技術(shù) Get_Char BRCLR SCI0SR1,$20,* LDAB SCI0DRL RTS char Get_Char(void)。 { while ((SCI0SR1 0x20) == 0)。 return(SCI0DRL)。 } SCI programming Lecture4 Page 42 微控制器開發(fā)技術(shù) ?寫一個 InitSCI()函數(shù)，用 C語言完成 SCI模塊的初始化（ 9600， 8N1） Lecture4 Page 43 微控制器開發(fā)技術(shù) 演講完畢，謝謝觀看！
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