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PIC16F877T-20PQ 参数 Datasheet PDF下载

PIC16F877T-20PQ图片预览
型号: PIC16F877T-20PQ
PDF下载: 下载PDF文件 查看货源
内容描述: 8位微控制器\n [8-Bit Microcontroller ]
分类和应用: 微控制器
文件页数/大小: 200 页 / 3338 K
品牌: ETC [ ETC ]
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PIC16F87X  
Steps to follow when setting up an Asynchronous  
Reception:  
6. Flag bit RCIF will be set when reception is com-  
plete and an interrupt will be generated if enable  
bit RCIE is set.  
1. Initialize the SPBRG register for the appropriate  
baud rate. If a high speed baud rate is desired,  
set bit BRGH. (Section 10.1).  
7. Read the RCSTA register to get the ninth bit (if  
enabled) and determine if any error occurred  
during reception.  
2. Enable the asynchronous serial port by clearing  
bit SYNC and setting bit SPEN.  
8. Read the 8-bit received data by reading the  
RCREG register.  
3. If interrupts are desired, then set enable bit  
RCIE.  
9. If any error occurred, clear the error by clearing  
enable bit CREN.  
4. If 9-bit reception is desired, then set bit RX9.  
5. Enable the reception by setting bit CREN.  
TABLE 10-6: REGISTERS ASSOCIATED WITH ASYNCHRONOUS RECEPTION  
Value on:  
POR,  
BOR  
Value on  
all other  
Resets  
Address Name  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
Bit 0  
(1)  
0Ch  
18h  
1Ah  
8Ch  
98h  
99h  
PIR1  
PSPIF  
SPEN  
ADIF  
RX9  
RCIF  
TXIF SSPIF CCP1IF TMR2IF TMR1IF 0000 0000 0000 0000  
RCSTA  
SREN CREN  
FERR  
OERR  
RX9D  
0000 -00x 0000 -00x  
0000 0000 0000 0000  
RCREG USART Receive Register  
(1)  
PIE1  
PSPIE  
CSRC  
ADIE  
TX9  
RCIE  
TXIE SSPIE CCP1IE TMR2IE TMR1IE 0000 0000 0000 0000  
TXSTA  
TXEN  
SYNC  
BRGH  
TRMT  
TX9D  
0000 -010 0000 -010  
0000 0000 0000 0000  
SPBRG Baud Rate Generator Register  
Legend: x= unknown, -= unimplemented locations read as '0'. Shaded cells are not used for asynchronous reception.  
Note 1: Bits PSPIE and PSPIF are reserved on the 28-pin devices; always maintain these bits clear.  
DS30292B-page 102  
1999 Microchip Technology Inc.  
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