- 您现在的位置：买卖IC网 > PDF目录67723 > IS89C51-40PQ (INTEGRATED SILICON SOLUTION INC) 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44 PDF资料下载
参数资料
| 型号： | IS89C51-40PQ |
| 厂商： | INTEGRATED SILICON SOLUTION INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | PLASTIC, QFP-44 |
| 文件页数： | 5/48页 |
| 文件大小： | 371K |
| 代理商： | IS89C51-40PQ |
第1页第2页第3页第4页当前第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页
IS89C51
Integrated Silicon Solution, Inc. — 1-800-379-4774
13
MC016-1C
11/21/98
ISSI
TMOD:
Timer/Counter Mode Control Register.
Not Bit Addressable.
Timer 1
Timer 0
GATE C/
TTTTT M1 M0
GATE
C/
TTTTT M1 M0
GATE When TRx (in TCON) is set and GATE=1, TIMER/
COUNTERx will run only while
INTx pin is high
(hardware control). When GATE=0, TIMER/
COUNTERx will run only while TRx=1 (software
control).
C/
T
Timer or Counter selector. Cleared for Timer
operation (input from internal system clock). Set
for Counter operation (input from Tx input pin).
M1
Mode selector bit.(1)
M0
Mode selector bit.(1)
Note 1:
M1
M0
Operating Mode
0
Mode 0. (13-bit Timer)
0
1
Mode 1. (16-bit Timer/Counter)
1
0
Mode 2. (8-bit auto-load Timer/Counter)
1
Mode 3. (Splits Timer 0 into TL0 and
TH0. TL0 is an 8-bit Timer/Counter
controller by the standard Timer 0
control bits. TH0 is an 8-bit Timer and
is controlled by Timer 1 control bits.)
1
Mode 3. (Timer/Counter 1 stopped).
SCON:
Serial Port Control Register. Bit Addressable.
7
6
54321
0
SM0
SM1
SM2
REN
TB8
RB8
TI
RI
Register Description:
SM0
SCON.7
Serial port mode specifier.(1)
SM1
SCON.6
Serial port mode specifier.(1)
SM2
SCON.5
Enable the multiprocessor com-
munication feature in mode 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 valid stop
bit was not received. In mode 0, SM2
should be 0.
REN SCON.4
Set/Cleared by software to Enable/
Disable reception.
TB8
SCON.3
The 9th bit that will be transmitted in
mode 2 and 3. Set/Cleared by software.
RB8
SCON.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
SCON.1
Transmit interrupt flag. Set by hardware
at the end of the eighth bit time in mode
0, or at the beginning of the stop bit in
the other modes. Must be cleared by
software.
RI
SCON.0
Receive interrupt flag. Set by hardware
at the end of the eighth bit time in mode
0, or halfway through the stop bit time
in the other modes (except see SM2).
Must be cleared by software.
Note 1:
SM0
SM1 MODE
Description
Baud Rate
0
Shift register
Fosc/12
0
1
8-bit UART
Variable
1
0
2
9-bit UART
Fosc/64 or
Fosc/32
1
3
9-bit UART
Variable
相关PDF资料 |
PDF描述 |
|---|---|
| IS89LV51-12PQ | 8-BIT, FLASH, 12 MHz, MICROCONTROLLER, PQFP44 |
| IS89LV51-24WI | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDIP40 |
| IS89LV51-40W | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PDIP40 |
| IS89LV52-12W | 8-BIT, FLASH, 12 MHz, MICROCONTROLLER, PDIP40 |
| IS89LV52-40PQI | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IS89C51-40PQI | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| IS89C51-40W | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 4-Kbytes of FLASH |
| IS89C51-40WI | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| IS89C52 | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH |
| IS89C52-12PL | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH |
发布紧急采购，3分钟左右您将得到回复。