參數(shù)資料
型號： PIC12F676
廠商： Microchip Technology Inc.
英文描述： 8-Pin, 8-Bit CMOS Enhanced FLASH Microcontroller with A/D Converter and EEPROM Data Memory(-2.5~5.5V,具ADC,閃速微控制器)
中文描述： 8引腳，8位閃存微控制器的CMOS增強與A / D轉(zhuǎn)換器和EEPROM數(shù)據(jù)存儲器（-2.5?5.5V的，具藝術(shù)發(fā)展局，閃速微控制器）
文件頁數(shù)： 79/170頁
文件大?。?/td> 4191K
代理商： PIC12F676
2003 Microchip Technology Inc.
Preliminary
DS40300C-page 77
PIC16F62X
12.2.2
ADEN USART ASYNCHRONOUS
RECEIVER
The receiver block diagram is shown in Figure 12-8.
The data is received on the RB1/RX/DT pin and drives
the data recovery block. The data recovery block is
actually a high speed shifter operating at x16 times the
baud rate, whereas the main receive serial shifter
operates at the bit rate or at F
OSC
.
Once Asynchronous mode is selected, reception is
enabled by setting bit CREN (RCSTA<4>).
The heart of the receiver is the Receive (serial) Shift
register (RSR). After sampling the STOP bit, the
received data in the RSR is transferred to the RCREG
register (if it is empty). If the transfer is complete, flag
bit RCIF (PIR1<5>) is set. The actual interrupt can be
enabled/disabled by setting/clearing enable bit RCIE
(PIE1<5>). Flag bit RCIF is a read only bit which is
cleared by the hardware. It is cleared when the RCREG
register has been read and is empty. The RCREG is a
double buffered register ( i.e., it is a two-deep FIFO).
It is possible for two bytes of data to be received and
transferred to the RCREG FIFO, and a third byte begin
shifting to the RSR register. On the detection of the
STOP bit of the third byte, if the RCREG register is still
full, then overrun error bit OERR (RCSTA<1>) will be
set. The word in the RSR will be lost. The RCREG
register can be read twice to retrieve the two bytes in
the FIFO. Overrun bit OERR has to be cleared in soft-
ware. This is done by resetting the receive logic (CREN
is cleared and then set). If bit OERR is set, transfers
from the RSR register to the RCREG register are inhib-
ited, so it is essential to clear error bit OERR if it is set.
Framing error bit FERR (RCSTA<2>) is set if a STOP
bit is detected as clear. Bit FERR and the 9th receive
bit are buffered the same way as the receive data.
Reading the RCREG will load bits RX9D and FERR
with new values, therefore it is essential for the user to
read the RCSTA register before reading the RCREG
register in order not to lose the old FERR and RX9D
information.
FIGURE 12-8:
USART RECEIVE BLOCK DIAGRAM
x64 Baud Rate CLK
SPBRG
Baud Rate Generator
RB1/RX/DT
Pin Buffer
and Control
SPEN
Data
Recovery
CREN
OERR
FERR
RSR register
MSb
LSb
RX9D
RCREG register
FIFO
Interrupt
RCIF
RCIE
Data Bus
8
3 64
or
3 16
Stop
Start
(8)
7
1
0
RX9
2 2 2
RX9
ADEN
RX9
ADEN
RSR<8>
Enable
Load of
Receive
Buffer
8
8
RCREG register
RX9D
相關(guān)PDF資料
PDF描述
PIC12F680 8-Pin, 8-Bit CMOS Enhanced FLASH Microcontroller with Serial I/O Interface(-2.0~5.5V,串行I/O接口,閃速微控制器)
PIC12F681 8-Pin, 8-Bit CMOS Enhanced FLASH Microcontroller with Serial I/O Interface(-2.0~5.5V,串行I/O接口,閃速微控制器)
PIC16C164 OTP 8-Bit High-Performance CMOS Microcontroller(主從模式，工作電壓3.0~5.5V，2路PWM的微控制器)
PIC16C165 OTP 8-Bit High-Performance CMOS Microcontroller(主從模式，工作電壓3.0~5.5V，2路PWM的微控制器)
PIC16C174 OTP 8-Bit High-Performance CMOS Microcontroller(主從模式，工作電壓3.0~5.5V，2路PWM的微控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC12F683 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology
PIC12F683 DEVELOPMENT BOARD KIT 制造商:Custom Computer Services (CCS) 功能描述:BOARD DEV FOR PIC12F683
PIC12F683 DEVELOPMENT KIT 功能描述:KIT DEV EMBEDDED C RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 通用嵌入式開發(fā)板和套件（MCU、DSP、FPGA、CPLD等） 系列:- 標準包裝:1 系列:PICDEM™ 類型:MCU 適用于相關(guān)產(chǎn)品:PIC10F206，PIC16F690，PIC16F819 所含物品:板，線纜，元件，CD，PICkit 編程器 產(chǎn)品目錄頁面:659 (CN2011-ZH PDF)
PIC12F683_07 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology
PIC12F683-E/MD 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 6I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*