S9S08SL8F1CTJ Datasheet, PDF (267/356 Pages) Freescale Semiconductor, Inc – provides the functional version of the on-chip modules

Chapter 15
Real-Time Counter (S08RTCV1)
15.1 Introduction
The RTC module consists of one 8-bit counter, one 8-bit comparator, several binary-based and
decimal-based prescaler dividers, two clock sources, and one programmable periodic interrupt. This
module can be used for time-of-day, calendar or any task scheduling functions. It can also serve as a cyclic
wake up from low power modes without the need of external components.
MC9S08EL32 Series and MC9S08SL16 Series Data Sheet, Rev. 3
Freescale Semiconductor
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