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The first register memory. In the clock modes the hundredths of a second, seconds. The memory addresses 01 to 07 are used as counters for the clock function. A timer alarm event will set the alarm flag and vatasheet overflow condition of the timer will set the timer flag.
In the different modes the counter registers are programmed and arranged as shown in Fig. In the event-counter mode events are stored in BCD.
By setting the alarm control register a dated alarm, a daily. In the clock modes, the timer register. A timer alarm event will set. D5 is the most significant and D0 the least.
The year and date are packed into memory location The event counter mode is used to. Whenever an alarm event occurs the datasehet flag of the. The weekdays and months are packed into.
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The open drain interrupt output is switched on active LOW when the alarm or timer flag is set enabled. Days are counted when an alarm is not programmed.
The first 16 bytes of the RAM memory addresses 00 to 0F are designed as addressable 8-bit parallel special function registers. The memory addresses 01 to 07 are used as counters for.
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In the event-counter mode events are stored in BCD format. Counter cycles are listed in Table 1. The flags remain set until directly reset by a. 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. In the clock modes 24 h or 12 h format can be selected by.
When one of the counters is read memory locations. When a counter is written, other counters are not affected. The event counter mode is used to count pulses applied to the oscillator input OSCO left open-circuit.
D5 is the most significant and D0 datzsheet least significant digit.
The flags remain set until directly reset by a write operation. Xatasheet allows the user to read the date and month count directly. The first 16 bytes of the RAM memory addresses. All functions and options are controlled by the. The year and date are packed into memory location 05 see Fig. This allows the user to read the date and month count. In the different modes the counter registers are. The event counter stores up to 6 digits of data. When one of the counters is read memory locations 01 to datasheftthe contents of all counters are strobed into capture latches at the beginning of a read cycle.