参数资料
型号: SAK-XC866-1FRA
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
封装: PLASTIC, GREEN, TSSOP-38
文件页数: 88/116页
文件大小: 1640K
代理商: SAK-XC866-1FRA
XC866
Functional Description
Data Sheet
69
V1.2, 2007-10
8-bit reload value (BR_VALUE) for the baud rate timer defined by register BG
The following formulas calculate the final baud rate without and with the fractional divider
respectively:
The maximum baud rate that can be generated is limited to fPCLK/32. Hence, for a module
clock of 26.7 MHz, the maximum achievable baud rate is 0.83 MBaud.
Standard LIN protocal can support a maximum baud rate of 20kHz, the baud rate
accuracy is not critical and the fractional divider can be disabled. Only the prescaler is
used for auto baud rate calculation. For LIN fast mode, which supports the baud rate of
20kHz to 115.2kHz, the higher baud rates require the use of the fractional divider for
greater accuracy.
Table 26 lists the various commonly used baud rates with their corresponding parameter
settings and deviation errors. The fractional divider is disabled and a module clock of
26.7 MHz is used.
The fractional divider allows baud rates of higher accuracy (lower deviation error) to be
generated. Table 27 lists the resulting deviation errors from generating a baud rate of
Table 26
Typical Baud rates for UART with Fractional Divider disabled
Baud rate
Prescaling Factor
(2BRPRE)
Reload Value
(BR_VALUE + 1)
Deviation Error
19.2 kBaud
1 (BRPRE=000B)
87 (57H)
-0.22 %
9600 Baud
1 (BRPRE=000B)174 (AEH)
-0.22 %
4800 Baud
2 (BRPRE=001B)174 (AEH)
-0.22 %
2400 Baud
4 (BRPRE=010B)174 (AEH)
-0.22 %
baud rate
fPCLK
16 2
BRPRE
BR_VALUE 1
+
()
×
----------------------------------------------------------------------------------- where 2
BRPRE
BR_VALUE 1
+
() 1
>
×
=
baud rate
fPCLK
16 2
BRPRE
BR_VALUE 1
+
()
×
----------------------------------------------------------------------------------- STEP
256
---------------
×
=
相关PDF资料
PDF描述
SAK-XC866-4FRA 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
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SAK-XC866-4RRI3V 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAF-XC866-2FRA3V 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAF-XC866-2FRA 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
相关代理商/技术参数
参数描述
SAKXC8661FRA AA 制造商:Infineon Technologies AG 功能描述:
SAK-XC866-1FRA AB 功能描述:8位微控制器 -MCU 8-Bit Single-Chip 3.3V 26.67MHz Flash RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAKXC8661FRAAB 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAK-XC866-1FRI AB 功能描述:8位微控制器 -MCU 8 BIT FLASH SINGLE CHIP CNTRLR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAK-XC866-2FRA BC 功能描述:8位微控制器 -MCU 8-Bit Single-Chip 3.3V 26.67MHz Flash RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT