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Z8F082ASH020SC 参数 Datasheet PDF下载

Z8F082ASH020SC图片预览
型号: Z8F082ASH020SC
PDF下载: 下载PDF文件 查看货源
内容描述: Z8喝采XP -R F08xA系列与扩展外设 [Z8 Encore XP-R F08xA Series with eXtended Peripherals]
分类和应用: 微控制器和处理器外围集成电路光电二极管时钟
文件页数/大小: 244 页 / 2750 K
品牌: ZILOG [ ZILOG, INC. ]
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Z8 Encore! XP® F08xA Seriess  
Product Specification  
87  
6. Check the TDREbit in the UART Status 0 register to determine if the Transmit Data  
register is empty (indicated by a 1). If empty, continue to Step 6. If the Transmit Data  
register is full (indicated by a 0), continue to monitor the TDRE bit until the Transmit  
Data register becomes available to receive new data.  
7. Write the UART Control 1 register to select the outgoing address bit.  
8. Set the Multiprocessor Bit Transmitter (MPBT) if sending an address byte, clear it if  
sending a data byte.  
9. Write the data byte to the UART Transmit Data register. The transmitter automatically  
transfers the data to the Transmit Shift register and transmits the data.  
10. Make any changes to the Multiprocessor Bit Transmitter (MPBT) value, if appropriate  
and MULTIPROCESSOR mode is enabled,.  
11. To transmit additional bytes, return to Step 5.  
Transmitting Data using the Interrupt-Driven Method  
The UART Transmitter interrupt indicates the availability of the Transmit Data register to  
accept new data for transmission. Follow these steps to configure the UART for interrupt-  
driven data transmission:  
1. Write to the UART Baud Rate High and Low Byte registers to set the appropriate baud  
rate.  
2. Enable the UART pin functions by configuring the associated GPIO Port pins for  
alternate function operation.  
3. Execute a DI instruction to disable interrupts.  
4. Write to the Interrupt control registers to enable the UART Transmitter interrupt and  
set the acceptable priority.  
5. Write to the UART Control 1 register to enable MULTIPROCESSOR (9-bit) mode  
functions, if MULTIPROCESSOR mode is appropriate.  
6. Set the MULTIPROCESSOR Mode Select (MPEN) to Enable MULTIPROCESSOR  
mode.  
7. Write to the UART Control 0 register to:  
Set the transmit enable bit (TEN) to enable the UART for data transmission  
Enable parity, if appropriate and if MULTIPROCESSOR mode is not enabled, and  
select either even or odd parity.  
Set or clear CTSEto enable or disable control from the remote receiver using the  
CTS pin.  
8. Execute an EI instruction to enable interrupts.  
PS024705-0405  
P R E L I M I N A R Y  
UART