MC9S08SH8CSC View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MC9S08SH8CSC

HCS08 Microcontrollers

Freescale Semiconductor 

Appendix A Electrical Characteristics

A.12.2 TPM/MTIM Module Timing

Synchronizer circuits determine the shortest input pulses that can be recognized or the fastest clock that

can be used as the optional external source to the timer counter. These synchronizers operate from the

current bus rate clock.

Table A-14. TPM Input Timing

Num C

Rating

Symbol

Min

1

— External clock frequency (1/tTCLK)

fTCLK

dc

2

— External clock period

tTCLK

4

3

— External clock high time

tclkh

1.5

4

— External clock low time

tclkl

1.5

5

— Input capture pulse width

tICPW

1.5

Max

fBus/4

—

—

—

—

Unit

MHz

tcyc

tcyc

tcyc

tcyc

tclkh

tTCLK

TCLK

tclkl

Figure A-12. Timer External Clock

TPMCHn

tICPW

TPMCHn

tICPW

Figure A-13. Timer Input Capture Pulse

MC9S08SH8 MCU Series Data Sheet, Rev. 3

Freescale Semiconductor

311

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