* Question
| What are the components of the Motorola MC68HC08 family of microcontroller clock generator modules? |
* Answer
| (1) Crystal Oscillation Circuit (OSC) This circuit generates an extremely stable clock signal CGMXCLK through an external quartz or ceramic oscillator. This clock signal is directly output to the time base module and A/D converter, and is also output to the reference clock.Select the circuit and PLL.
(3) Reference clock selection circuit The output signal CGMOUT of the clock generator module has two sources: the CGMXCLK signal generated by the crystal circuit is divided by 2, or the CGMVCLK signal generated by the PLL is divided by 2. |
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