ST72325K6-Auto datasheet(4/243 Pages) STMICROELECTRONICS | SCI asynchronous serial interface

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ST72325K6-Auto Datasheet(PDF) 4 Page - STMicroelectronics

Part #	ST72325K6-Auto

Description	SCI asynchronous serial interface

Download	243 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Contents

ST72325xxx-Auto

4/243

Doc ID 13770 Rev 3

9.1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

9.2

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

9.2.1

Input modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

9.2.2

Output modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

9.2.3

Alternate functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

9.3

I/O port implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

9.4

Low power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

9.5

Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

10

Watchdog timer (WDG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

10.1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

10.2

Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

10.3

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

10.4

How to program the watchdog timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

10.5

Low power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

10.6

Hardware watchdog option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

10.7

Using Halt mode with the WDG (WDGHALT option) . . . . . . . . . . . . . . . . 84

10.8

Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

10.9

Register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

10.9.1

Control register (WDGCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

11

Main clock controller with real-time clock and beeper (MCC/RTC) . . 86

11.1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

11.2

Programmable CPU clock prescaler . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

11.3

Clock-out capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

11.4

Real-time clock timer (RTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

11.5

Beeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

11.6

Low power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

11.7

Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

11.8

Main clock controller registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

11.8.1

MCC control/status register (MCCSR) . . . . . . . . . . . . . . . . . . . . . . . . . . 88

11.8.2

MCC beep control register (MCCBCR) . . . . . . . . . . . . . . . . . . . . . . . . . 89

12

PWM auto-reload timer (ART) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

12.1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Similar Part No. - ST72325K6-Auto

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	ST72325K6B3	3Mb / 197P	8-bit MCU with 16 to 60K Flash/ROM, ADC, CSS, 5 timers, SPI, SCI, I2C interface
	ST72325K6B6	3Mb / 197P	8-bit MCU with 16 to 60K Flash/ROM, ADC, CSS, 5 timers, SPI, SCI, I2C interface
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