Interfacing RTC: How to Use AS, DS, R/W Pins for Setting and Reading Time?

The discussion focuses on interfacing a DS12887 real-time clock (RTC) module with an AT89C52 microcontroller, specifically addressing the use of the AS (Address Strobe), DS (Data Strobe), and R/W (Read/Write) pins for setting and reading time. The original poster seeks guidance on controlling these pins to enable the oscillator, set the RTC to time mode, initialize the time to 12:00, and retrieve updated time values. While the Muhammad Ali Mazidi book covers RTC programming, it lacks details on handling these control pins. Responses suggest consulting the DS12885/DS12887 datasheet for timing diagrams and pin operation states, which clarify the required signal sequences for reading and writing data. Additional resources with example code and timing illustrations are recommended to better understand the pin control and timing requirements for proper RTC interfacing.
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