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参数资料
型号： uPSD3212CV
厂商： 意法半导体
英文描述： Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(带8032微控制器内核和16Kbit SRAM的FLASH可编程系统器件)
中文描述： 闪存可编程系统设备与8032微控制器内核和16Kbit的SRAM（带8032微控制器内核和16Kbit SRAM的的闪存可编程系统器件）
文件页数： 69/151页
文件大小： 1194K
代理商： UPSD3212CV
69/151
uPSD3212C, uPSD3212CV
PULSE WIDTH MODULATION (PWM)
The PWM block has the following features:
Four-channel, 8-bit PWM unit with 16-bit
prescaler
One-channel, 8-bit unit with programmable
frequency and pulse width
PWM Output with programmable polarity
4-channel PWM Unit (PWM 0-3)
The 8-bit counter of a PWM counts module 256
(i.e., from 0 to 255, inclusive). The value held in
the 8-bit counter is compared to the contents of the
Special Function Register (PWM 0-3) of the corre-
sponding PWM. The polarity of the PWM outputs
is programmable and selected by the PWML Bit in
PWMCON register. Provided the contents of a
PWM 0-3 register is greater than the counter val-
ue, the corresponding PWM output is set HIGH
(with PWML = 0). When the contents of this regis-
ter is less than or equal to the counter value, the
corresponding PWM output is set LOW (with
PWML = 0). The pulse-width-ratio is therefore de-
■
■
■
fined by the contents of the corresponding Special
Function Register (PWM 0-3) of a PWM. By load-
ing the corresponding Special Function Register
(PWM 0-3) with either 00H or FFH, the PWM out-
put can be retained at a constant HIGH or LOW
level respectively (with PWML = 0).
For each PWM unit, there is a 16-bit Prescaler that
are used to divide the main system clock to form
the input clock for the corresponding PWM unit.
This prescaler is used to define the desired repeti-
tion rate for the PWM unit. SFR registers B1h -
B2h are used to hold the 16-bit divisor values.
The repetition frequency of the PWM output is giv-
en by:
fPWM
8
= (f
OSC
/ prescaler0) / (2 x 256)
And the input clock frequency to the PWM
counters is = f
OSC
/ 2 / (prescaler data value + 1)
See the I/O PORTS (MCU Module), page 43 for
more information on how to configure the Port 4
pin as PWM output.
相关PDF资料
PDF描述
uPSD3212 Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可编程系统器件)
UPSD3215A-24T1 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
UPSD3215AV-40T6T 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
UPSD3215BV-24U1 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
UPSD3233A-40T6 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
相关代理商/技术参数
参数描述
UPSD3212CV-24T1T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM
UPSD3212CV-24T6 功能描述:8位微控制器 -MCU 3.0V 512K 24MHz 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
UPSD3212CV-24T6T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212CV-24U1T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM
UPSD3212CV-24U6 功能描述:8位微控制器 -MCU 3.0V 512K 24MHz 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
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