參數(shù)資料
型號(hào)： ADUC824BS
廠商： ANALOG DEVICES INC
元件分類： 微控制器/微處理器
英文描述： MicroConverter, Dual-Channel 16-/24-Bit ADCs with Embedded FLASH MCU
中文描述： 8-BIT, FLASH, 12.58 MHz, MICROCONTROLLER, PQFP52
封裝： PLASTIC, MQFP-52
文件頁(yè)數(shù)： 57/68頁(yè)
文件大?。?/td> 1060K
代理商： ADUC824BS
REV. B
ADuC824
–57–
UART SERIAL INTERFACE
The serial port is full duplex, meaning it can transmit and receive
simultaneously. It is also receive-buffered, meaning it can com-
mence reception of a second byte before a previously received
byte has been read from the receive register. However, if the first
byte still has not been read by the time reception of the second
byte is complete, the first byte will be 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 is comprised of the fol-
lowing registers.
SBUF
The serial port receive and transmit registers are both accessed
through the SBUF SFR (SFR address = 99 hex). Writing to
SBUF loads the transmit register and reading SBUF accesses a
physically separate receive register.
SCON
SFR Address
Power-On Default Value
Bit Addressable
UART Serial Port Control Register
98H
00H
Yes
0
M
S
1
M
S
2
M
S
N
E
R
8
B
T
8
B
R
I
T
I
R
Table XXVII. SCON SFR Bit Designations
Bit
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
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/64) or (Core_Clk/32)
1
1
Mode 3: 9-bit UART, variable baud rate
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 will not be activated if a valid stop bit was not received. If SM2 is
cleared, RI will be set as soon as the byte of data has been received. In Modes 2 or 3, if SM2 is
set, RI will not be activated if the received ninth data bit in RB8 is 0. If SM2 is cleared, RI will
be set as soon as the byte of data has been received.
Serial Port Receive Enable Bit
Set
by user software to enable serial port reception.
Cleared
by user software to disable serial port reception.
Serial Port Transmit (Bit 9)
The data loaded into TB8 will be the ninth data bit that will be transmitted in Modes 2 and 3.
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.
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.
Serial Port Receiver 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.
5
SM2
4
REN
3
TB8
2
RB8
1
TI
0
RI
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ADUC824BS-DEN 制造商:Analog Devices 功能描述:
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ADUC824BSZ 功能描述:IC MCU 8K FLASH ADC/DAC 52MQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標(biāo)準(zhǔn)包裝:250 系列:LPC11Uxx 核心處理器:ARM? Cortex?-M0 芯體尺寸:32-位 速度:50MHz 連通性:I²C，Microwire，SPI，SSI，SSP，UART/USART，USB 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，POR，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:96KB（96K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:4K x 8 RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):1.8 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:48-LQFP 包裝:托盤(pán) 其它名稱:568-9587
ADUC824BSZ-DEN 功能描述:8052 MicroConverter? ADuC8xx Microcontroller IC 8-Bit 12.58MHz 8KB (8K x 8) FLASH 制造商:analog devices inc. 系列:MicroConverter? ADuC8xx 包裝:- 零件狀態(tài):上次購(gòu)買時(shí)間 核心處理器:8052 核心尺寸:8-位 速度:12.58MHz 連接性:EBI/EMI，I2C，SPI，UART/USART 外設(shè):POR，PSM，溫度傳感器，WDT I/O 數(shù):34 程序存儲(chǔ)容量:8KB（8K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 容量:640 x 8 RAM 容量:256 x 8 電壓 - 電源（Vcc/Vdd）:2.7 V ~ 5.25 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 3x16b，4x24b；D/A 1x12b 振蕩器類型:內(nèi)部 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:- 供應(yīng)商器件封裝:- 標(biāo)準(zhǔn)包裝:1
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