mc9s08sh8mwjr Freescale Semiconductor, Inc, mc9s08sh8mwjr Datasheet - Page 113

• Manufacturer Part Number: mc9s08sh8mwjr
• Description: S08sh 5-volt 8-bit Microcontrollers With Sci, Spi, I2c, Adc And Analog Comparators
• Manufacturer: Freescale Semiconductor, Inc

Chapter 8
Analog Comparator 5-V (S08ACMPV3)
8.1
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).
Figure 8-1
8.1.1
When using the bandgap reference voltage for input to ACMP+, the user must enable the bandgap buffer
by setting BGBE =1 in SPMSC1 see
Register
8.1.2
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 for channel 0.
Freescale Semiconductor
(SPMSC1)”. For value of bandgap voltage reference see
Introduction
shows the MC9S08SH32 Series block diagram with the ACMP highlighted.
ACMP Configuration Information
ACMP/TPM Configuration Information
MC9S08SH32 Series Data Sheet, Rev. 2
Section 5.7.6, “System Power Management Status and Control 1
PRELIMINARY
Section A.6, “DC
Characteristics”.
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