参数资料
型号: SAK-XC866-2RRI3V
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: 90/116页
文件大小: 1640K
代理商: SAK-XC866-2RRI3V
XC866
Functional Description
Data Sheet
71
V1.2, 2007-10
3.11.2
Baud Rate Generation using Timer 1
In UART modes 1 and 3, Timer 1 can be used for generating the variable baud rates. In
theory, this timer could be used in any of its modes. But in practice, it should be set into
auto-reload mode (Timer 1 mode 2), with its high byte set to the appropriate value for the
required baud rate. The baud rate is determined by the Timer 1 overflow rate and the
value of SMOD as follows:
[3.1]
3.12
Normal Divider Mode (8-bit Auto-reload Timer)
Setting bit FDM in register FDCON to 1 configures the fractional divider to normal divider
mode, while at the same time disables baud rate generation (see Figure 29). Once the
fractional divider is enabled (FDEN = 1), it functions as an 8-bit auto-reload timer (with
no relation to baud rate generation) and counts up from the reload value with each input
clock pulse. Bit field RESULT in register FDRES represents the timer value, while bit
field STEP in register FDSTEP defines the reload value. At each timer overflow, an
overflow flag (FDCON.NDOV) will be set and an interrupt request generated. This gives
an output clock
fMOD that is 1/n of the input clock fDIV, where n is defined by 256 - STEP.
The output frequency in normal divider mode is derived as follows:
[3.2]
Mode 1, 3 baud rate
2
SMOD
fPCLK
×
32 2
256 TH1
()
×
-----------------------------------------------------
=
fMOD
fDIV
1
256 STEP
------------------------------
×
=
相关PDF资料
PDF描述
SAK-XC866-4RRA3V 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAF-XC866-4RRA3V 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAK-XC866-1FRI3V 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAK-XC866L-1FRA 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAF-XC866L-4FRA 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
相关代理商/技术参数
参数描述
SAKXC866-4FR 制造商:Infineon Technologies AG 功能描述:
SAK-XC866-4FRA 制造商:Infineon Technologies AG 功能描述:8BIT MCU 16K FLASH TSSOP38 866
SAK-XC866-4FRA BE 功能描述:8位微控制器 -MCU 8-Bit Single-Chip 5V 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
SAKXC8664FRABCXT 制造商:Infineon Technologies AG 功能描述:MCU 8-Bit XC800 8051 CISC 12KB Flash 2.5V/5V 38-Pin TSSOP
SAK-XC866-4FRBC 制造商:Rochester Electronics LLC 功能描述:- Bulk