MC9S08QG8_09 Datasheet, PDF (229/314 Pages) Freescale Semiconductor, Inc – HCS08 Microcontrollers

Chapter 16
Timer/Pulse-Width Modulator (S08TPMV2)
16.1 Introduction
Figure 16-1 shows the MC9S08QG8/4 block diagram with the TPM highlighted.
16.1.1 ACMP/TPM Configuration Information
The ACMP module can be configured to connect the output of the analog comparator to TPM input capture
channel 0 by setting ACIC in SOPT2. With ACIC set, the TPMCH0 pin is not available externally
regardless of the configuration of the TPM module.
16.1.2 MTIM/TPM Configuration Information
The external clock for the TPM module, TPMCLK, is selected by setting CLKS[B:A] = 1:1 in TPMSC,
which selects the TCLK pin input. The TCLK input on PTA5 can be enabled as external clock inputs to
both the MTIM and TPM modules simultaneously.
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 5
Freescale Semiconductor
227