参数资料
型号: R5F212BASDFP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
封装: 10 X 10 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件页数: 41/138页
文件大小: 492K
代理商: R5F212BASDFP
222
4317K–AVR–03/2013
AT90PWM2/3/2B/3B
Figure 19-6. 9 bits communication data access
19.6.2.3
UDR/EUDR data access from 13 to 17 bits per character
When the EUSART is used in 13, 14, 15, 16 or 17 bits per character mode, the EUDR/UDR reg-
isters are used in combinaison with the RxB8/TxB8 bit for data access.
For 13, 14, 15 or 16 bit character the upper unused bits in EUDR will be ignored by the Transmit-
ter and set to zero by the Receiver. In transmitter mode, the data should be written MSB first.
The data transmission starts when the UDR register is written.
In these modes, the RxB8/TxB8 registers are not used.
Figure 19-7. 13, 14, 15 and 16 bits communication data access
For 17 bit character the seventeenth bit is locate in RxB8 or TXB8 register. In transmitter mode,
the data should be written MSB first. The data transmission starts when the UDR register is
written.
Figure 19-8. 17 bits communication data access
87
0
Data 8:0
UDR
EUDR
8
15
7
0
Data 15:0
UDR
EUDR
8
15
16
7
0
Data 16:0
UDR
EUDR
RxB8 (receive)
or TxB8 (transmit)
相关PDF资料
PDF描述
R5F212BASNFA 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
R5F212ACSDFP 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
R5F212BCSNFP 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
R5F212BASNFP 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
R5F212ACSNFP 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
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