参数资料
型号: MC68HCL05P1AP
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封装: PLASTIC, DIP-28
文件页数: 85/124页
文件大小: 3724K
代理商: MC68HCL05P1AP
MC68HC05P1A Rev. 3.0
General Release Specification
16-Bit Timer
NON-DISCLOSURE
AGREEMENT
REQUIRED
General Release Specification — MC68HC05P1A
Section 8. 16-Bit Timer
8.1 Contents
8.2 Introduction
The MC68HC05P1A MCU contains a single 16-bit programmable timer
with an input capture function and an output compare function. The 16-
bit timer is driven by the output of a fixed divide-by-four prescaler
operating from the PH2 clock. The 16-bit timer may be used for many
applications, including input waveform measurement, while
simultaneously generating an output waveform. Pulse widths can vary
from microseconds to seconds depending on the oscillator frequency
selected. The 16-bit timer also is capable of generating periodic
interrupts. See Figure 8-1.
Because the timer has a 16-bit architecture, each function is represented
by two registers. Each register pair contains the high and low byte of that
function. Generally, accessing the low byte of a specific timer function
allows full control of that function; however, an access of the high byte
inhibits that specific timer function until the low byte is also accessed.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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