ST10F269
TABLE OF CONTENTS
PAGE
16 - Real Time Clock ..................................................................................................... 105
16.1 - RTC REGISTERS .......................................................................................................106
16.1.1 - RTCCON: RTC Control Register .................................................................106
16.1.2 - RTCPH & RTCPL: RTC PRESCALER Registers .......................................108
16.1.3 - RTCDH & RTCDL: RTC DIVIDER Counters ...............................................108
16.1.4 - RTCH & RTCL: RTC Programmable COUNTER Registers ........................109
16.1.5 - RTCAH & RTCAL: RTC ALARM Registers .................................................110
16.2 - PROGRAMMING THE RTC ........................................................................................110
17 - Watchdog Timer ..................................................................................................... 112
18 - System Reset ......................................................................................................... 114
18.1 - LONG HARDWARE RESET .......................................................................................114
18.1.1 - Asynchronous Reset ...................................................................................114
18.1.2 - Synchronous Reset (RSTIN pulse > 1040TCL and RPD pin at high level) .115
18.1.3 - Exit of Long Hardware Reset ......................................................................116
18.2 - SHORT HARDWARE RESET .....................................................................................116
18.3 - SOFTWARE RESET ...................................................................................................117
18.4 - WATCHDOG TIMER RESET ......................................................................................117
18.5 - RSTOUT, RSTIN, BIDIRECTIONAL RESET ..............................................................118
18.5.1 - RSTOUT Pin ...............................................................................................118
18.5.2 - Bidirectional Reset ......................................................................................118
18.5.3 - RSTIN pin ....................................................................................................118
18.6 - RESET CIRCUITRY ....................................................................................................118
19 - Power Reduction Modes ......................................................................................... 122
19.1 - IDLE MODE ................................................................................................................122
19.2 - POWER DOWN MODE ..............................................................................................122
19.2.1 - Protected Power Down Mode ......................................................................122
19.2.2 - Interruptible Power Down Mode ..................................................................122
20 - Special Function Register Overview ....................................................................... 125
20.1 - IDENTIFICATION REGISTERS ..................................................................................131
20.2 - SYSTEM CONFIGURATION REGISTERS ................................................................132
21 - Electrical Characteristics ........................................................................................ 139
21.1 - ABSOLUTE MAXIMUM RATINGS ..............................................................................139
21.2 - PARAMETER INTERPRETATION .............................................................................139
21.3 - DC CHARACTERISTICS ............................................................................................139
21.3.1 - A/D Converter Characteristics .....................................................................144
21.3.2 - Conversion Timing Control ........................................................................145
21.4 - AC CHARACTERISTICS ............................................................................................146
21.4.1 - Test Waveforms .........................................................................................146
21.4.2 - Definition of Internal Timing .........................................................................146
21.4.3 - Clock Generation Modes .............................................................................148
21.4.4 - Prescaler Operation ....................................................................................149
21.4.5 - Direct Drive ..................................................................................................149
21.4.6 - Oscillator Watchdog (OWD) ........................................................................149
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