參數(shù)資料
型號(hào)： R5F212BASDFA
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
封裝： 14 X 14 MM, 0.80 MM PITCH, PLASTIC, LQFP-48
文件頁數(shù)： 36/138頁
文件大小： 492K
代理商： R5F212BASDFA
218
4317K–AVR–03/2013
AT90PWM2/3/2B/3B
19.4
Configuring the EUSART
19.4.1
Data Transmission – EUSART Transmitter
The EUSART Transmitter is enabled in the same way as standard USART, by setting the Trans-
mit Enable (TXEN) bit in the UCSRB Register. When the Transmitter is enabled, the normal port
operation of the TxDn pin is overridden by the EUSART and given the function as the Transmit-
ter’s serial output. The baud rate, mode of operation and frame format must be set up once
before doing any transmissions. If synchronous operation is used, the clock on the XCK pin will
be overridden and used as transmission clock.
19.4.2
Sending Frames with 5 to 8 Data Bit
In this mode the behavior is the same as the standard USART (See “Sending Frames with 5 to 8
Data Bit” in USART section).
19.4.3
Sending Frames with 9, 13, 14, 15 or 16 Data Bit
In these configurations the most significant bits (9, 13, 14, 15 or 16) should be loaded in the
EUDR register before the low byte of the character is written to UDR. The write operation in the
UDR register allows to start the transmission.
Note:
The example code assumes that the part specific header file is included.
For I/O Registers located in extended I/O map, “IN”, “OUT”, “SBIS”, “SBIC”, “CBI”, and “SBI”
instructions must be replaced with instructions that allow access to extended I/O. Typically “LDS”
and “STS” combined with “SBRS”, “SBRC”, “SBR”, and “CBR”.
TABLE 2.
Assembly Code Example
(1)
EUSART_Transmit:
; Wait for empty transmit buffer
sbis
UCSRA,UDRE
rjmp
EUSART_Transmit
; Put LSB data (r16) and MSN data (r15) into buffer, sends the data
sts
EUDR,r15
sts
UDR,r16
ret
C Code Example(1)
void
EUSART_Transmit( unsigned int data )
{
/* Wait for empty transmit buffer */
while
( !( UCSRA & (1<<UDRE))) )
/* Put data into buffer, sends the data */
EUDR = data>>8;
UDR = data;
}
相關(guān)PDF資料
PDF描述
R5F212BASDFP 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R5F212BASDFA#U0 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 64LQFP
R5F212BASDFA#V0 功能描述:IC R8C/2B MCU FLASH 64LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:R8C/2x/2B 標(biāo)準(zhǔn)包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設(shè)備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:- 程序存儲(chǔ)器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 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:68-LCC（J 形引線） 包裝:帶卷 (TR)
R5F212BASDFA#V2 制造商:Renesas Electronics Corporation 功能描述:R8C/2B 96+2/7 64LQFP 14X14 -40 TO +85 - Trays 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 64LQFP
R5F212BASDFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:MCU
R5F212BASDFP#U0 制造商:Renesas Electronics Corporation 功能描述:MCU 16-Bit R8C CISC 96KB Flash 2.5V/3.3V/5V 64-Pin LQFP 制造商:Renesas Electronics Corporation 功能描述:MCU 16-bit R8C CISC 96KB Flash 2.5V/3.3V/5V 64-Pin LQFP
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