参数资料
型号: MB90F574/APFF
厂商: FUJITSU LTD
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, MICROCONTROLLER, PQFP120
封装: PLASTIC, LQFP-120
文件页数: 57/120页
文件大小: 1834K
代理商: MB90F574/APFF
MB90570 Series
41
4.
8/16-bit PPG Timer
The 8/16-bit PPG timer is a 2-CH reload timer module for outputting pulse having given frequencies/duty ratios.
The two modules performs the following operation by combining functions.
8-bit PPG output 2-CH independent operation mode
This is a mode for operating independent 2-CH 8-bit PPG timer, in which PPG0 and PPG1 pins correspond
to outputs from PPG0 and PPG1 respectively.
16-bit PPG timer output operation mode
In this mode, PPG0 and PPG1 are combined to be operated as a 1-CH 8/16-bit PPG timer operating as a 16-
bit timer. Because PPG0 and PPG1 outputs are reversed by an underflow from PPG1 outputting the same
output pulses from PPG0 and PPG1 pins.
8 + 8-bit PPG timer output operation mode
In this mode, PPG0 is operated as an 8-bit communications prescaler, in which an underflow output of PPG0
is used as a clock source for PPG1. A toggle output of PPG0 and PPG output of PPG1 are output from PPG0
and PPG1 respectively.
PPG output operation
A pulse wave with any period/duty ratio is output. The module can also be used as a D/A converter with an
external add-on circuit.
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