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| 型号： | ADUC847BSZ8-3 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 88/108页 |
| 文件大小： | 0K |
| 描述： | IC MCU FLASH W/24BIT ADC 52MQFP |
| 标准包装： | 1 |
| 系列： | MicroConverter® ADuC8xx |
| 核心处理器： | 8052 |
| 芯体尺寸： | 8-位 |
| 速度： | 12.58MHz |
| 连通性： | I²C，SPI，UART/USART |
| 外围设备： | POR，PSM，PWM，温度传感器，WDT |
| 输入/输出数： | 34 |
| 程序存储器容量： | 8KB（8K x 8） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 4K x 8 |
| RAM 容量： | 2.25K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 3.6 V |
| 数据转换器： | A/D 10x24b; D/A 1x12b，2x16b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 52-QFP |
| 包装： | 托盘 |
| 配用： | EVAL-ADUC847QSZ-ND - KIT DEV QUICK START FOR ADUC847 |
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ADuC845/ADuC847/ADuC848
Data Sheet
Rev. C | Page 80 of 108
UART SERIAL INTERFACE
The serial port is full duplex, meaning that it can transmit and
receive simultaneously. It is also receive buffered, meaning that
it can begin receiving a second byte before a previously received
byte is read from the receive register. However, if the first byte is
still not read by the time reception of the second byte is complete,
the first byte is lost. The physical interface to the serial data
network is via Pins RxD(P3.0) and TxD(P3.1), while the SFR
interface to the UART comprises SBUF and SCON, as described
below.
SBUF SFR
Both the serial port receive and transmit registers are accessed
through the SBUF SFR (SFR address = 99H). Writing to SBUF
loads the transmit register, and reading SBUF accesses a
physically separate receive register.
SCON UART—Serial Port Control Register
SFR Address:
98H
Power-On Default:
00H
Bit Addressable:
Yes
Table 54. SCON SFR Bit Designations
Bit No.
Name
Description
7, 6
SM0, SM1
UART Serial Mode Select Bits. These bits select the serial port operating mode as follows:
SM0
SM1
Selected Operating Mode.
0
Mode 0: Shift register, fixed baud rate (Core_Clk/2).
0
1
Mode 1: 8-bit UART, variable baud rate.
1
0
Mode 2: 9-bit UART, fixed baud rate (Core_Clk/32) or (Core_Clk/16).
1
Mode 3: 9-bit UART, variable baud rate.
5
SM2
Multiprocessor Communication Enable Bit.
Enables multiprocessor communication in Modes 2 and 3.
In Mode 0, SM2 should be cleared.
In Mode 1, if SM2 is set, RI is not activated if a valid stop bit was not received. If SM2 is cleared, RI is set as soon as
the byte of data is received.
In Modes 2 or 3, if SM2 is set, RI is not activated if the received ninth data bit in RB8 is 0.
If SM2 is cleared, RI is set as soon as the byte of data is received.
4
REN
Serial Port Receive Enable Bit.
Set by user software to enable serial port reception.
3
TB8
Serial Port Transmit (Bit 9).
The data loaded into TB8 is the ninth data bit transmitted in Modes 2 and 3. Cleared by user software to disable
serial port reception.
2
RB8
Serial Port Receiver Bit 9.
The ninth data bit received in Modes 2 and 3 is latched into RB8. For Mode 1, the stop bit is latched into RB8.
1
TI
Serial Port Transmit Interrupt Flag.
Set by hardware at the end of the eighth bit in Mode 0, or at the beginning of the stop bit in Modes 1, 2, and 3.
TI must be cleared by user software.
0
RI
Serial Port Receive Interrupt Flag.
Set by hardware at the end of the eighth bit in Mode 0, or halfway through the stop bit in Modes 1, 2, and 3.
RI must be cleared by software.
SBUF—UART Serial Port Data Register
SFR Address:
99H
Power-On Default:
00H
Bit Addressable:
No
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADUC847BSZ8-5 | 功能描述:IC MCU FLASH W/24BIT ADC 52MQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 标准包装:38 系列:Encore!® XP® 核心处理器:eZ8 芯体尺寸:8-位 速度:5MHz 连通性:IrDA，UART/USART 外围设备:欠压检测/复位，LED，POR，PWM，WDT 输入/输出数:16 程序存储器容量:4KB（4K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 3.6 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:管件 其它名称:269-4116Z8F0413SH005EG-ND |
| ADUC848 | 制造商:AD 制造商全称:Analog Devices 功能描述:MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU |
| ADUC848BCP32-3 | 制造商:Analog Devices 功能描述:10 CHANNEL 16 BIT ADC + FLASH 8 BIT UP - Trays |
| ADUC848BCP32-5 | 制造商:Analog Devices 功能描述:10 CHANNEL 16 BIT ADC + FLASH 8 BIT UP - Trays |
| ADUC848BCP62-3 | 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 56-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.85MHZ 3.3V 56LFCSP - Bulk |
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