参数资料
型号: PIC12F1822T-I/MF
厂商: Microchip Technology
文件页数: 15/109页
文件大小: 0K
描述: MCU 8BIT 2K FLASH 8DFN
标准包装: 3,300
系列: PIC® XLP™ 12F
核心处理器: PIC
芯体尺寸: 8-位
速度: 32MHz
连通性: I²C,LIN,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 6
程序存储器容量: 3.5KB(2K x 14)
程序存储器类型: 闪存
EEPROM 大小: 256 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 8-VDFN 裸露焊盘
包装: 带卷 (TR)
204
7674F–AVR–09/09
ATmega164P/324P/644P
Note:
18.6.1
Transmitter and Receiver Flags and Interrupts
The RXCn, TXCn, and UDREn flags and corresponding interrupts in USART in MSPIM mode
are identical in function to the normal USART operation. However, the receiver error status flags
(FE, DOR, and PE) are not in use and is always read as zero.
18.6.2
Disabling the Transmitter or Receiver
The disabling of the transmitter or receiver in USART in MSPIM mode is identical in function to
the normal USART operation.
Assembly Code Example
USART_MSPIM_Transfer:
; Wait for empty transmit buffer
sbis
UCSRnA, UDREn
rjmp
USART_MSPIM_Transfer
; Put data (r16) into buffer, sends the data
out
UDRn,r16
; Wait for data to be received
USART_MSPIM_Wait_RXCn:
sbis
UCSRnA, RXCn
rjmp
USART_MSPIM_Wait_RXCn
; Get and return received data from buffer
in
r16, UDRn
ret
C Code Example(1)
unsigned char
USART_Receive( void )
{
/* Wait for empty transmit buffer */
while
( !( UCSRnA & (1<<UDREn)) );
/* Put data into buffer, sends the data */
UDRn = data;
/* Wait for data to be received */
while
( !(UCSRnA & (1<<RXCn)) );
/* Get and return received data from buffer */
return
UDRn;
}
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