MC9S08QB4 View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MC9S08QB4

8-Bit HCS08 Central Processor Unit

Freescale Semiconductor 

Electrical Characteristics

tIHIL

KBIPx

IRQ/KBIPx

tILIH

Figure 14. IRQ/KBIPx Timing

3.10.2 TPM 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 13. TPM Input Timing

No. C

Function

1

D External clock frequency

2

D External clock period

3

D External clock high time

4

D External clock low time

5

D Input capture pulse width

Symbol

Min

fTEXT

DC

tTEXT

4

tTCLKH

1.5

tTCLKL

1.5

fICPW

1.5

Max

1/4 fop

—

—

—

—

Unit

MHz

tCYC

tCYC

tCYC

tCYC

ipg_clk

tCYC

EXTERNAL

CLOCK

tTEXT

tTCLKH

tTCLKL

INPUT

CAPTURE

tICPW

Figure 15. Timer Input Capture Pulse

MC9S08QB8 Series MCU Data Sheet, Rev. 3

Freescale Semiconductor

19

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