参数资料
型号: MC68HC08QY4CDWE
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO16
封装: 1.27 MM PITCH, LEAD FREE, PLASTIC, MS-013AA, SOIC-16
文件页数: 23/178页
文件大小: 2311K
代理商: MC68HC08QY4CDWE
MC68HC08QY/QT Family Data Sheet, Rev. 1
Freescale Semiconductor
119
Chapter 14
Timer Interface Module (TIM)
14.1 Introduction
This section describes the timer interface module (TIM). The TIM module is a 2-channel timer that
provides a timing reference with input capture, output compare, and pulse-width-modulation functions.
The TIM module shares its pins with general-purpose input/output (I/O) port pins. See Figure 14-1 for port
location of these shared pins.
14.2 Features
Features include the following:
Two input capture/output compare channels
Rising-edge, falling-edge, or any-edge input capture trigger
Set, clear, or toggle output compare action
Buffered and unbuffered output compare pulse-width modulation (PWM) signal generation
Programmable clock input
7-frequency internal bus clock prescaler selection
External clock input pin if available, See Figure 14-1
Free-running or modulo up-count operation
Toggle any channel pin on overflow
Counter stop and reset bits
14.3 Functional Description
Figure 14-2 shows the structure of the TIM. The central component of the TIM is the 16-bit counter that
can operate as a free-running counter or a modulo up-counter. The counter provides the timing reference
for the input capture and output compare functions. The counter modulo registers, TMODH:TMODL,
control the modulo value of the counter. Software can read the counter value, TCNTH:TCNTL, at any time
without affecting the counting sequence.
The two TIM channels are programmable independently as input capture or output compare channels.
14.3.1 TIM Counter Prescaler
The TIM clock source is one of the seven prescaler outputs or the external clock input pin, TCLK if
available. The prescaler generates seven clock rates from the internal bus clock. The prescaler select
bits, PS[2:0], in the TIM status and control register (TSC) select the clock source.
相关PDF资料
PDF描述
MC13213 SPECIALTY MICROPROCESSOR CIRCUIT, PBGA71
MSP430F4491IPZR 16-BIT, FLASH, 8 MHz, RISC MICROCONTROLLER, PQFP100
MAC7136MVM50 32-BIT, FLASH, 50 MHz, RISC MICROCONTROLLER, PBGA208
MAC7141CFU50 32-BIT, FLASH, 50 MHz, RISC MICROCONTROLLER, PQFP100
MC9S12XEG128MAA 32-BIT, FLASH, 50 MHz, RISC MICROCONTROLLER, PQFP80
相关代理商/技术参数
参数描述
MC68HC08SR12 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:M68HC08 Microcontrollers
MC68HC08TV24CFB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:M68HC08 Microcontrollers
MC68HC08XL36 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC08XL36CB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC08XL36CFU 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit