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参数资料
| 型号： | TS87C51RD2-VCLB |
| 元件分类： | 8位微控制器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8位微控制器 |
| 文件页数： | 32/74页 |
| 文件大小： | 689K |
| 代理商： | TS87C51RD2-VCLB |
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38
Rev. C - 06 March, 2001
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
Table 16. SCON Register
SCON - Serial Control Register (98h)
Reset Value = 0000 0000b
Bit addressable
7
6
5
4
3
2
1
0
FE/SM0
SM1
SM2
REN
TB8
RB8
TI
RI
Bit Number
Bit
Mnemonic
Description
7
FE
Framing Error bit (SMOD0=1)
Clear to reset the error state, not cleared by a valid stop bit.
Set by hardware when an invalid stop bit is detected.
SMOD0 must be set to enable access to the FE bit
SM0
Serial port Mode bit 0
Refer to SM1 for serial port mode selection.
SMOD0 must be cleared to enable access to the SM0 bit
6
SM1
Serial port Mode bit 1
SM0
SM1
Mode
Description
Baud Rate
0
Shift Register
FXTAL/12 (/6 in X2 mode)
0
1
8-bit UART
Variable
1
0
2
9-bit UART
FXTAL/64 or FXTAL/32 (/32, /16 in X2 mode)
1
3
9-bit UART
Variable
5
SM2
Serial port Mode 2 bit / Multiprocessor Communication Enable bit
Clear to disable multiprocessor communication feature.
Set to enable multiprocessor communication feature in mode 2 and 3, and eventually mode 1. This bit should
be cleared in mode 0.
4
REN
Reception Enable bit
Clear to disable serial reception.
Set to enable serial reception.
3
TB8
Transmitter Bit 8 / Ninth bit to transmit in modes 2 and 3.
Clear to transmit a logic 0 in the 9th bit.
Set to transmit a logic 1 in the 9th bit.
2
RB8
Receiver Bit 8 / Ninth bit received in modes 2 and 3
Cleared by hardware if 9th bit received is a logic 0.
Set by hardware if 9th bit received is a logic 1.
In mode 1, if SM2 = 0, RB8 is the received stop bit. In mode 0 RB8 is not used.
1
TI
Transmit Interrupt ag
Clear to acknowledge interrupt.
Set by hardware at the end of the 8th bit time in mode 0 or at the beginning of the stop bit in the other
modes.
0
RI
Receive Interrupt ag
Clear to acknowledge interrupt.
Set by hardware at the end of the 8th bit time in mode 0, see Figure 14. and Figure 15. in the other modes.
相关PDF资料 |
PDF描述 |
|---|---|
| TS87C51RD2-VCLD | 8-BIT MICROCONTROLLER |
| TS87C51RD2-VCLR | 8-BIT MICROCONTROLLER |
| TS87C51RD2-VCMB | 8-BIT MICROCONTROLLER |
| TS87C51RD2-VCMD | 8-BIT MICROCONTROLLER |
| TS87C51RD2-VIAD | 8-BIT MICROCONTROLLER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TS87C51RD2-VCLD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| TS87C51RD2-VCLR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| TS87C51RD2-VCM | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:High Performance 8-bit Microcontroller |
| TS87C51RD2-VCMB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| TS87C51RD2-VCMD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
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