mc9s08qe4 Freescale Semiconductor, Inc, mc9s08qe4 Datasheet - Page 20

• Manufacturer Part Number: mc9s08qe4
• Description: 8-bit Hcs08 Central Processor Unit
• Manufacturer: Freescale Semiconductor, Inc

Electrical Characteristics
3.10.2
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.
3.10.3
Table 13
20
and
No.
1
2
3
4
5
Figure 18
TPM Module Timing
SPI Timing
C
D
D
D
D
D
through
External clock frequency
External clock period
External clock high time
External clock low time
Input capture pulse width
Figure 21
TCLK
TPMCHn
TPMCHn
IRQ/KBIPx
Function
KBIPx
Figure 17. Timer Input Capture Pulse
describe the timing requirements for the SPI system.
Figure 16. Timer External Clock
Figure 15. IRQ/KBIPx Timing
Subject to Change Without Notice
Table 12. TPM Input Timing
MC9S08QE8 Series, Rev. 3
Preliminary
t
clkh
t
t
ICPW
ICPW
t
t
IHIL
ILIH
Symbol
t
TCLK
t
f
t
ICPW
TCLK
TCLK
t
t
clkh
clkl
t
clkl
Min
1.5
1.5
1.5
0
4
f
Max
Bus
—
—
—
—
Freescale Semiconductor
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Unit
t
t
t
t
Hz
cyc
cyc
cyc
cyc