To summarize what was covered, the Timer Array Unit is a module containing up to eight, 16-bit timer channels. These channels can either be run independently or combined together and have several modes of operation for both configurations. The RL78 also includes a Real Time Clock that can count in seconds up to 99 years. The RTC has the ability to fire interrupts at specific alarm times or at chosen intervals. The Interval Timer was covered as well. This 12-bit timer consists of a 12-bit counter register and a 12-bit compare register. It fires an interrupt whenever both registers match. A major application of this timer is to enable the RL78’s low power operation. This module also examined the PCL Buzzer Output. The PCL is a very simple peripheral that enables one to output a square wave at a fixed frequency. It can easily be enabled or disabled using a single bit. And finally, the Watchdog Timer was covered. Its primary function is to detect runaway code and generate a reset if this occurs. The WDT is set up by the option byte so there is no way to affect its behavior from the application code.