参数资料
型号: PIC16C433/JW
厂商: Microchip Technology
文件页数: 113/126页
文件大小: 0K
描述: IC MCU 2KX14 LIN TXRX 18CDIP
标准包装: 25
系列: PIC® 16C
核心处理器: PIC
芯体尺寸: 8-位
速度: 10MHz
连通性: LIN(本地互连网络)
外围设备: POR,WDT
输入/输出数: 5
程序存储器容量: 3.5KB(2K x 14)
程序存储器类型: EPROM,UV
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 4.5 V ~ 5.5 V
数据转换器: A/D 4x8b
振荡器型: 内部
工作温度: 0°C ~ 70°C
封装/外壳: 18-CDIP(0.300",7.62mm)窗口
包装: 管件
产品目录页面: 636 (CN2011-ZH PDF)
配用: DVA16XP185-ND - ADAPTER DEVICE ICE 18DIP/SOIC
87
4378C–AVR–09/08
AT90PWM1
14.6.4
Phase Correct PWM Mode
The phase correct PWM mode (WGM02:0 = 1 or 5) provides a high resolution phase correct
PWM waveform generation option. The phase correct PWM mode is based on a dual-slope
operation. The counter counts repeatedly from BOTTOM to TOP and then from TOP to BOT-
TOM. TOP is defined as 0xFF when WGM2:0 = 1, and OCR0A when WGM2:0 = 5. In non-
inverting Compare Output mode, the Output Compare (OC0x) is cleared on the compare match
between TCNT0 and OCR0x while upcounting, and set on the compare match while downcount-
ing. In inverting Output Compare mode, the operation is inverted. The dual-slope operation has
lower maximum operation frequency than single slope operation. However, due to the symmet-
ric feature of the dual-slope PWM modes, these modes are preferred for motor control
applications.
In phase correct PWM mode the counter is incremented until the counter value matches TOP.
When the counter reaches TOP, it changes the count direction. The TCNT0 value will be equal
to TOP for one timer clock cycle. The timing diagram for the phase correct PWM mode is shown
on Figure 14-7. The TCNT0 value is in the timing diagram shown as a histogram for illustrating
the dual-slope operation. The diagram includes non-inverted and inverted PWM outputs. The
small horizontal line marks on the TCNT0 slopes represent compare matches between OCR0x
and TCNT0.
Figure 14-7. Phase Correct PWM Mode, Timing Diagram
The Timer/Counter Overflow Flag (TOV0) is set each time the counter reaches BOTTOM. The
Interrupt Flag can be used to generate an interrupt each time the counter reaches the BOTTOM
value.
In phase correct PWM mode, the compare unit allows generation of PWM waveforms on the
OC0x pins. Setting the COM0x1:0 bits to two will produce a non-inverted PWM. An inverted
PWM output can be generated by setting the COM0x1:0 to three: Setting the COM0A0 bits to
one allows the OC0A pin to toggle on Compare Matches if the WGM02 bit is set. This option is
not available for the OC0B pin (see Table 25 on page 91). The actual OC0x value will only be
visible on the port pin if the data direction for the port pin is set as output. The PWM waveform is
generated by clearing (or setting) the OC0x Register at the compare match between OCR0x and
TCNT0 when the counter increments, and setting (or clearing) the OC0x Register at compare
TOVn Interrupt Flag Set
OCnx Interrupt Flag Set
1
2
3
TCNTn
Period
OCnx
(COMnx1:0 = 2)
(COMnx1:0 = 3)
OCRnx Update
相关PDF资料
PDF描述
VI-21M-IX-F3 CONVERTER MOD DC/DC 10V 75W
ADG1421BRMZ-REEL7 IC SW SPST 2.1OHM RON 10MSOP
ADG1422BRMZ-REEL7 IC SW SPST 2.1OHM RON 10MSOP
PIC17C44-25I/L IC MCU OTP 8KX16 PWM 44PLCC
CK05BX472K CAP CER 4700PF 100V 10% RADIAL
相关代理商/技术参数
参数描述
PIC16C433T-E/SO 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 6 I/O 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
PIC16C433T-I/SO 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 6 I/O 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
PIC16C505/JW 功能描述:8位微控制器 -MCU 1.5KB 72 RAM 12 I/O 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
PIC16C505-04/P 功能描述:8位微控制器 -MCU 1.5KB 72 RAM 12 I/O 4MHz PDIP14 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
PIC16C505-04/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU (TUBE 30) 16C505 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C505 DIP14