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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.
(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 first 16 bytes of the RAM memory addresses 00 to 0F are designed as addressable 8-bit parallel special function registers.
The weekdays and months are packed into. A timer alarm event will set the alarm flag and an overflow condition of the timer will set the timer flag. This allows the user to read the date and month count. All functions and options are controlled by the.
The timer register stores up to 99 days. In the clock modes, the timer register. D5 is the most significant and D0 the least.
T Datasheet PDF – NXP Semiconductors
A timer alarm event will set. This allows the user to 85883t the date and month count directly. The event counter mode is used to count pulses applied to the oscillator input OSCO left open-circuit.
In the clock modes, the timer 8583g address 07 may be programmed to count hundredths of a second, seconds, minutes, hours or days. The event counter stores up to 6 digits of data.
The flags remain set until directly reset by a write operation. The first 16 bytes of the RAM memory addresses. In the different modes the counter registers are programmed and arranged as shown in Fig.
In the clock modes the hundredths of datasyeet second, seconds. The format of the hours counter is shown in Fig. By setting the alarm control register a dated alarm, a daily alarm, a weekday alarm or a timer alarm may be programmed. By setting the alarm control register a dated alarm, a daily.
The weekdays and months are packed into memory location 06 see Fig.
The first register memory. Therefore, faulty reading of the count during a carry condition is prevented. When a counter is written, other datasheeet are not affected.
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. The flags remain set until directly reset by a. The memory addresses 08 to 0F may.
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Counter cycles are listed in Table 1. The year and date are packed into memory location 05 see Fig.
The event counter stores up to 6 digits of. In the event-counter mode events are stored in BCD. The year and date are datasjeet into memory location D5 is the most significant and D0 the least significant digit.
The divider is by-passed.
The open drain interrupt output is switched. In the event-counter mode events are stored in BCD format.
In the clock modes 24 h or 12 h format can be selected by.