參數(shù)資料
型號(hào)： P87C591SFB
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： Single-chip 8-bit microcontroller with CAN controller
中文描述： 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP44
封裝： 10 X 10 X 1.75 MM, PLASTIC, SOT-307-2, QFP-44
文件頁數(shù)： 65/161頁
文件大?。?/td> 588K
代理商： P87C591SFB
1999 Aug 19
65
Philips Semiconductors
Objective Specification
Single-chip 8-bit microcontroller with CAN controller
P8xC591
With the baud rate generator as clock source for the serial
port in Mode 1 and Mode 3, the baud rate of can be
determined as follows:
Mode 1, 3 baud rate =
Baud rate generator overflow rate =
2
12
- S0PS with S0PS = S0PSH.3 - 0, S0PSL.7 - 0.
S0PS: Baud Rate Generator Prescaler load value
Table 47 lists baud rates and how they can be obtained
from the Internal Baud Rate Generator.
14.3.8
U
SING
T
IMER
1
TO
G
ENERATE
B
AUD
R
ATES
In Mode 1 and 3 of the serial port also timer 1 can be used
for generating baud rates. Then the baud rate is
determined by the timer 1 overflow rate and the value of
SMOD1 as follows:
SMOD1
(baud rate generator overflow rate)
osciillator frequency
×
32
×
-------------2
The Timer 1 interrupt is usually disabled in this application.
Timer 1 itself can be configured for either “timer” or
“counter” operation, and in any of its operating modes. In
most typical applications, it is configured for “timer”
operation in the auto-reload (high nibble of TMOD =
0010B). In this case the baud rate is given by the formula:
Very low baud rates can be achieved with Timer 1 if
leaving the Timer 1 interrupt enabled, configuring the timer
to run as 16-bit timer (high nibble of TMOD = 0001B), and
using the Timer 1 interrupt for a 16-bit software reload.
Table 48 lists lower baud rates and how they can be
obtained from Timer 1.
Mode 1, 3 baud rate
SMOD1
32
2
(timer 1 overflow rate)
×
=
Mode1 3 baud rate =2
SMOD1
TH1
(
–
×
6
)
)
×
------32
Table 44
Serial Port Control Register SCON (address)
Table 45
Description of S0PSH and S0PSL bits
7
6
5
4
3
2
1
0
SM0
SM1
SM2
REN
TB8
RB8
TI
RI
BIT
SYMBOL
DESCRIPTION
7
6
5
SM0
SM1
SM2
See Table 46.
See Table 46.
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 9
th
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.
Enables serial reception.
Set by software to enable reception. Clear by software to
disable reception.
The 9
th
data bit that will be transmitted in Modes 2 and 3.
Set or clear by software as
desired.
In Modes 2 and 3, is the 9
th
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.
Transmit interrupt flag.
Set by hardware at the end of the 8
th
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.
Receive interrupt flag.
Set by hardware at the end of the 8
th
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.
4
REN
3
TB8
2
RB8
1
TI
0
RI
相關(guān)PDF資料
PDF描述
P80C591 Single-chip 8-bit microcontroller with CAN controller
P83C591 Single-chip 8-bit microcontroller with CAN controller
P87C591 Single-chip 8-bit microcontroller with CAN controller
P83C591VFA Single-chip 8-bit microcontroller with CAN controller
P80CE560 8-BIT SINGLE CHIP MICROCONTROLLERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P87C591VFA/00,512 功能描述:8位微控制器 -MCU 80C51 16K OTP/CAN RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
P87C654X2BBD,157 功能描述:8位微控制器 -MCU 16K/256 OTP 12/6 CLK I2C LQFP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
P87C654X2FA 制造商:NXP Semiconductors 功能描述:P87C654X2FA 8bit microcontroller,33MHz
P87C654X2FA,529 功能描述:8位微控制器 -MCU 16K/256 OTP 12/6 CLK RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
P87C654X2FA-S 功能描述:8位微控制器 -MCU 16K/256 OTP 12/6 CLK I2C PLCC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*