ST7232AK2-Auto STMicroelectronics, ST7232AK2-Auto Datasheet - Page 78
ST7232AK2-Auto
Manufacturer Part Number
ST7232AK2-Auto
Description
8-bit MCU for automotive, 16 Kbyte Flash, 10-bit ADC, 4 timers, SPI, SCI
Manufacturer
STMicroelectronics
Datasheet
1.ST7232AK2-AUTO.pdf
(201 pages)
Specifications of ST7232AK2-Auto
Hdflash Endurance
100 cycles, data retention
Clock Sources
crystal/ceramic resonator oscillators and bypass for external clock
Four Power Saving Modes
halt, active halt, wait and slow
Main Clock Controller With
real time base, beep and clock-out capabilities
Two 16-bit Timers With
2 input captures, 2 output compares, PWM and pulse generator modes
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On-chip peripherals
10.2.8
10.3
10.3.1
10.3.2
78/201
MCC register map and reset values
Table 31.
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 a 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
●
●
●
●
●
●
●
Address(Hex.)
Programmable prescaler: f
Overflow status flag and maskable interrupt
External clock input (must be at least 4 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
002Ch
002Dh
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
Main clock controller register map and reset values
MCCSR
Reset value
MCCBCR
Reset value
Register label
CPU
MCO
7
0
0
divided by 2, 4 or 8
CP1
6
0
0
CP0
5
0
0
SMS
4
0
0
TB1
3
0
0
TB0
2
0
0
ST7232Axx-Auto
BC1
OIE
1
0
0
BC0
OIF
0
0
0
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