參數(shù)資料
型號: P80C557E6
廠商: NXP Semiconductors N.V.
英文描述: Single-chip 8-bit microcontroller(單片8位微控制器)
中文描述: 單芯片8位微控制器(單片8位微控制器)
文件頁數(shù): 29/64頁
文件大?。?/td> 476K
代理商: P80C557E6
Philips Semiconductors
Product specification
P83C557E6/P80C557E6
Single-chip 8-bit microcontroller
1999 Mar 02
29
Figure 28. Serial port control (S0CON) register.
7
6
5
4
3
2
1
0
S0CON (98H)
SM0
SM1
SM2
REN
TB8
RB8
TI
RI
Table 22.
Description of S0CON bits
SYMBOL
BIT
FUNCTION
SM0
S0CON.7
This bit is used to select the serial port mode. See Table 23
SM1
S0CON.6
This bit is used to select the serial port mode. See Table 23
SM2
S0CON.5
Enables the multiprocessor communication feature in modes 2 and 3. In mode 2 or 3, if SM2 is set to
1, then RI will not be activated if the received 9th data bit (RB8) is 0. In mode 1, if SM2 = 1, then RI will
not be activated if a valid stop bit was not received. In mode 0, SM2 should be 0.
REN
S0CON.4
Enables serial reception. Set by software to enable reception. Clear by software to disable reception.
TB8
S0CON.3
The 9th data bit that will be transmitted in modes 2 and 3. Set or clear by software as desired.
RB8
S0CON.2
In modes 2 and 3, RB8 is the 9th data bit that was received. In mode 1, if
SM2 = 0, RB8 is the stop bit that was received. In mode 0, RB8 is not used.
TI
S0CON.1
The transmit interrupt flag. 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, in any serial transmission. Must be cleared by software.
RI
S0CON.0
The receive interrupt flag. Set by hardware at the end of the 8th bit time in mode 0, or halfway through
the stop bit time in the other modes, in any serial reception (except see SM2). Must be cleared by
software.
Table 23.
Description of S0CON bits
SM0
SM1
MODE
DESCRIPTION
BAUD RATE
0
0
0
Shift register
f
CLK
/12
variable
0
1
1
8–bit UART
1
0
2
9–bit UART
f
CLK
/64 or f
CLK
/32
variable
1
1
3
9–bit UART
相關(guān)PDF資料
PDF描述
P89C58 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash
P89C54X2 80C51 8-bit Flash microcontroller family
P89C54X2BA 80C51 8-bit Flash microcontroller family
P89C54X2BBD 80C51 8-bit Flash microcontroller family
P89C54X2BN 80C51 8-bit Flash microcontroller family
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P80C557E6EBB 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 8-bit microcontroller
P80C557E6EFB 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 8-bit microcontroller
P80C557E8 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8 BIT MICROCONTROLLER
P80C557E8EFB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
P80C562 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller