MC9S12GC64MFAE datasheet by Freescale Semiconductor

MC9S12GC64MFAE Frequently Asked Questions (FAQs)

• What is the maximum clock frequency of the MC9S12GC64MFAE?
  The maximum clock frequency of the MC9S12GC64MFAE is 25 MHz, but it can be overclocked to 30 MHz with some limitations.
• How do I configure the internal oscillator on the MC9S12GC64MFAE?
  The internal oscillator on the MC9S12GC64MFAE can be configured using the OSCCLK and OSCST registers. The oscillator frequency can be set to 4 MHz, 8 MHz, or 16 MHz.
• What is the maximum amount of RAM and flash memory available on the MC9S12GC64MFAE?
  The MC9S12GC64MFAE has 64 KB of flash memory and 4 KB of RAM.
• How do I use the ADC on the MC9S12GC64MFAE?
  The ADC on the MC9S12GC64MFAE is a 10-bit successive approximation ADC. It can be configured using the ADCSCR1 and ADCSCR2 registers. The ADC clock can be set to a divisor of the bus clock, and the conversion time can be set to 1, 2, or 4 bus clocks.
• Can I use the MC9S12GC64MFAE with an external crystal oscillator?
  Yes, the MC9S12GC64MFAE can be used with an external crystal oscillator. The external oscillator frequency can be set to 4 MHz, 8 MHz, or 16 MHz, and the oscillator circuit is connected to the XTAL and EXTAL pins.