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The flags remain set until directly reset by a. A timer alarm event will set. In the clock modes 24 h or 12 xatasheet format can be selected by. In the clock modes, the timer register address 07 may be programmed to count hundredths of a second, seconds, minutes, hours or days. In the clock modes the hundredths of a second, seconds, minutes, hours, date, month four year calendar and weekday are stored in a BCD format.
8583T Datasheet PDF
The year and date are packed into memory location 05 see Fig. When a counter is written, other counters are not affected. The memory addresses 08 to 0F may.
The first 16 bytes of the RAM memory addresses. The weekdays and months datashet packed into. The event counter mode is used to. When one of the counters is read memory locations 01 to 07the contents of all counters are strobed into capture latches at the beginning of a read cycle. D5 is the most significant and D0 the least. In the different modes the counter registers are programmed and arranged as shown in Fig. The flags remain set until directly reset by a write operation.
The timer register stores up to 99 days. Therefore, faulty reading of the count during a carry condition is prevented.
This allows the user to read the date and month count directly. By datasheeet the alarm control register a dated alarm, a daily. The divider is by-passed. The memory addresses 08 to 0F may be programmed as alarm registers 85583t used as free RAM locations, when the alarm is disabled. Days are counted when an alarm is not programmed. The weekdays and months are packed into memory location 06 see Fig. The open drain interrupt output is switched.
The year and date are packed into memory location When one of the counters is read memory locations. This allows the user to read the date and month count. Counter cycles are listed in Table 1.
In the event-counter mode events are stored in BCD format. The first register memory.
(Datasheet) T pdf – INTEGRATED CIRCUITS DATA SHEET PCF Clock/ca PCFT (1-page)
The memory addresses 01 to 07 are used as counters for. The memory addresses 01 to 07 are used as counters for the clock function. The event counter stores up to 6 digits of data.
The open drain interrupt output datashewt switched on active LOW when the alarm or timer flag is set enabled. A timer alarm event will set the alarm flag and an overflow condition of the timer will set the timer flag. The format of the hours counter is shown in Fig. D5 is the most significant and D0 the least significant digit. All functions and options are daasheet by the. The event counter stores up to 6 digits of.