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| 型号： | MC68331CFC25B1 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 25 MHz, MICROCONTROLLER, PQFP132 |
| 封装： | 0.950 X 0.950 INCH, 0.025 INCH PITCH, PLASTIC, QFP-132 |
| 文件页数： | 68/90页 |
| 文件大小： | 481K |
| 代理商： | MC68331CFC25B1 |
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MOTOROLA
MC68331
70
MC68331TS/D
6 General-Purpose Timer Module
The 11-channel general-purpose timer (GPT) is used in systems where a moderate level of CPU control
is required. The GPT consists of a capture/compare unit, a pulse accumulator, and two pulse-width
modulators. A bus interface unit connects the GPT to the intermodule bus.
Figure 15 GPT Block Diagram
6.1 Overview
The capture/compare unit features three input capture channels, four output compare channels, and
one channel that can be selected as an input capture or output compare channel. These channels share
a 16-bit free-running counter (TCNT) which derives its clock from a nine-stage prescaler or from the ex-
ternal clock input signal, PCLK.
Pulse accumulator channel logic includes an 8-bit counter; the pulse accumulator can operate in either
event counting mode or gated time accumulation mode.
Pulse-width modulator outputs are periodic waveforms whose duty cycles can be independently select-
ed and modified by user software. The PWM circuits share a 16-bit free-running counter that can be
clocked by the same nine-stage prescaler used by the capture/compare unit or by the PCLK input.
All GPT pins can also be used for general-purpose input/output. The input capture and output compare
pins form a bidirectional 8-bit parallel port (PORTGP). PWM pins are outputs only. PAI and PCLK pins
are inputs only.
GPT input capture/output compare pins are bidirectional and can be used to form an 8-bit parallel port.
The pulse-width modulator outputs can be used as general-purpose outputs. The PAI and PCLK inputs
can be used as general-purpose inputs.
The GPT control register address map is shown below. The “Access” column in the GPT address map
indicates which registers are accessible only at the supervisor privilege level and which can be assigned
to either the supervisor or user privilege level, according to the value of the SUPV bit in the GPTMCR.
GPT BLOCK
PULSE ACCUMULATOR
PWM UNIT
BUS INTERFACE
IMB
CAPTURE/COMPARE UNIT
PRESCALER
IC1/PGP0
IC2/PGP1
IC3/PGP2
PCLK
PWMB
PWMA
PAI
IC4/OC5/OC1/PGP7
OC4/OC1/PGP6
OC3/OC1/PGP5
OC2/OC1/PGP4
OC1/PGP3
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相关代理商/技术参数 |
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|---|---|
| MC68331CFV16 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:User’s Manual |
| MC68331CFV20 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:User’s Manual |
| MC68331CPV16 | 功能描述:IC MCU 32BIT 16MHZ 144-LQFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:M683xx 其它有关文件:STM32F101T8 View All Specifications 特色产品:STM32 32-bit Cortex MCUs 标准包装:490 系列:STM32 F1 核心处理器:ARM? Cortex?-M3 芯体尺寸:32-位 速度:36MHz 连通性:I²C，IrDA，LIN，SPI，UART/USART 外围设备:DMA，PDR，POR，PVD，PWM，温度传感器，WDT 输入/输出数:26 程序存储器容量:64KB（64K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):2 V ~ 3.6 V 数据转换器:A/D 10x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:36-VFQFN，36-VFQFPN 包装:托盘 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名称:497-9032STM32F101T8U6-ND |
| MC68331CPV16B1 | 制造商:Rochester Electronics LLC 功能描述:32BIT MCU,GPT,SIM,QSM - Bulk |
| MC68331CPV20 | 制造商:Rochester Electronics LLC 功能描述:32BIT MCU,GPT,SIM,QSM - Bulk |
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