MC9S08LC60 Datasheet, PDF (293/358 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 16
Analog Comparator (S08ACMPV2)
16.1 Introduction
The analog comparator module (ACMP) provides a circuit for comparing two analog input voltages or for
comparing one analog input voltage to an internal reference voltage. The comparator circuit is designed to
operate across the full range of the supply voltage (rail to rail operation).
16.1.1 ACMP/TPM1 Configuration Information
The ACMP module can be configured to connect the output of the analog comparator to TPM1 input
capture channel 0 by setting ACIC in SOPT2. With ACIC set, the TPM1CH0 pin is not available externally
regardless of the configuration of the TPM1 module
Figure 16-1 shows the MC9S08LC60 Series block diagram with the ACMP highlighted.
16.1.2 AMCPO Availability
For the MC9S08LC60 Series, the AMCPO pin is not available, so the ACOPE bit in the ACMPSC register
is reserved and does not have any effect.
MC9S08LC60 Series Advance Information Data Sheet, Rev. 2
Freescale Semiconductor
PRELIMINARY
293