ST72325R6-AUTO STMicroelectronics, ST72325R6-AUTO Datasheet - Page 107
ST72325R6-AUTO
Manufacturer Part Number
ST72325R6-AUTO
Description
8-bit Mcu For Automotive With 16 To 60 Kbyte Flash, Adc, Css, 5 Timers, Spi, Sci, I2c Interface
Manufacturer
STMicroelectronics
Datasheet
1.ST72325R6-AUTO.pdf
(250 pages)
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ST72325xxx-Auto
13
13.1
13.2
Note:
16-bit timer
Introduction
The timer consists of a 16-bit free-running counter driven by a programmable prescaler.
It may be used for a variety of purposes, including pulse length measurement of up to two
input signals (input capture) or generation of up to two output waveforms (output compare
and PWM).
Pulse lengths and waveform periods can be modulated from a few microseconds to several
milliseconds using the timer prescaler and the CPU clock prescaler.
Some ST7 devices have two on-chip 16-bit timers. They are completely independent, and
do not share any resources. They are synchronized after an MCU reset as long as the timer
clock frequencies are not modified.
This description covers one or two 16-bit timers. In ST7 devices with two timers, register
names are prefixed with TA (Timer A) or TB (Timer B).
Main features
●
●
●
●
●
●
●
●
●
The block diagram is shown in
When reading an input signal on a non-bonded pin, the value will always be ‘1’.
a. Some timer pins may not be available (not bonded) in some ST7 devices. Refer to the device pinout
description.
Programmable prescaler: f
Overflow status flag and maskable interrupt
External clock input (must be at least four times slower than the CPU clock speed) with
the choice of active edge
1 or 2 Output Compare functions each with:
–
–
–
–
1 or 2 Input Capture functions each with:
–
–
–
–
Pulse Width Modulation mode (PWM)
One Pulse mode
Reduced Power mode
5 alternate functions on I/O ports (ICAP1, ICAP2, OCMP1, OCMP2, EXTCLK)
2 dedicated 16-bit registers
2 dedicated programmable signals
2 dedicated status flags
1 dedicated maskable interrupt
2 dedicated 16-bit registers
2 dedicated active edge selection signals
2 dedicated status flags
1 dedicated maskable interrupt
Figure
CPU
divided by 2, 4 or 8
43.
16-bit timer
(a)
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