P80C528EFA datasheet by Philips Semiconductors

P80C528EFA Frequently Asked Questions (FAQs)

• What is the maximum clock frequency for the P80C528EFA?
  The maximum clock frequency for the P80C528EFA is 40 MHz, but it can be overclocked to 48 MHz with careful consideration of power consumption and thermal management.
• How do I configure the watchdog timer (WDT) on the P80C528EFA?
  The WDT can be configured using the WDTC register. Set the WDTC bits to select the timeout period (from 16 ms to 2.1 seconds) and enable the WDT by setting the WDTE bit in the WDTC register.
• Can I use the P80C528EFA with a 3.3V power supply?
  Yes, the P80C528EFA can operate with a 3.3V power supply, but it's essential to ensure that the input voltage is within the recommended range (3.0V to 3.6V) and that the device is properly decoupled to prevent voltage drops.
• How do I implement a UART interface on the P80C528EFA?
  The P80C528EFA has a built-in UART module. Configure the UART registers (SCON, SBUF, and AUXR) to set the baud rate, data bits, parity, and stop bits. Use the UART interrupt to handle transmission and reception of data.
• What is the maximum amount of RAM and ROM available on the P80C528EFA?
  The P80C528EFA has 256 bytes of RAM and 8 KB of ROM (flash memory).