参数资料
型号: W83L951DG
厂商: Nuvoton Technology Corporation of America
文件页数: 87/112页
文件大小: 0K
描述: IC EMBEDDED CNTRLR 128-LQFP
标准包装: 90
系列: W83
核心处理器: 8051
芯体尺寸: 8-位
速度: 24MHz
连通性: 主机接口,PS/2,SMBus,UART/USART
外围设备: PWM,WDT
输入/输出数: 104
程序存储器容量: 64KB(64K x 8)
程序存储器类型: 闪存
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 8x10b; D/A 2x8b
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 128-LQFP
包装: 托盘
W83L951DG/W83L951FG
- 72 -
6.10 UART Block
W83L951DG/FG supports one Universal asynchronous serial I/O mode (UART) .Eight serial data
transfer formats can be selected, for vary selection of Stop bit, Parity, Parity check, Data length, and
the transfer formats used by a transmitter and receiver must be identical.
The transmitter and receiver shift registers each have a buffer, but the two buffers have the same
address in memory. Since the shift register cannot be written to or read from directly, transmit data is
written to the transmit buffer register, and receive data is read from the receive buffer register. The
transmit buffer register can also hold the next data to be transmitted, and the receive buffer register
can hold a byte while the next byte is being received.
Table 6-18.UART Register Define
UART Block(5)
ExtAddr Name
7
6
5
4
3
2
1
0
30
UARTCON
TxEn
TS
RxEn
PARE PARS STPS CHAS
Reserved
31
UARTSTS
ParErr FrameErr
OverErr Reserved
RxBFull TxBFull
32
BRGH
Baud Rate Generator High Byte[7:0]
33
BRGL
Baud Rate Generator Low Byte[7:0]
34
UARTBUF
UART Transmit / Receive Buffer[7:0]
Gray: Only with System Reset to initial.
6.10.1 Register Description
6.10.1.1
UART Control Register (UARTCON) (Default Value: 0000_0000)
Bit 7: Transmit enable bit (TE)
0: Transmit disabled. 1: Transmit enable.
Bit 6: Transmit Speed up bit (TS) (Reserved)
0: Disable.
1: Enable.
Bit 5: Receive enable bit (RE)
0: Receive disable. 1: Receive enable.
Bit 4: Parity enable bit (PARE).
0: Parity Bit disable. 1: Parity Bit enable.
Bit 3: Parity selection bit (PARS).
0: Odd parity. 1: Even parity.
Bit 2: Stop bit length selection bit (STPS)
0: 1 stop bit. 1: 2 stop bits.
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