mc9rs08la8 Freescale Semiconductor, Inc, mc9rs08la8 Datasheet - Page 18

• Manufacturer Part Number: mc9rs08la8
• Description: 8-bit Rs08 Central Processor Unit
• Manufacturer: Freescale Semiconductor, Inc

Electrical Characteristics
3.8.2
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.
18
External clock frequency
External clock period
External clock high time
External clock low time
Input capture pulse width
TPM/MTIM Module Timing
Function
RESET
(rising or high level)
(falling or low level)
TCLK
KBI Pin
KBI Pin
MC9RS08LA8 Series MCU Data Sheet, Rev. 1
Table 11. TPM/MTIM Input Timing
Figure 12. Timer External Clock
Figure 11. KBI Pulse Width
Figure 10. Reset Timing
t
clkh
Symbol
t
t
t
t
KBIPWS
KBIPW
KBIPW
KBIPWS
f
t
f
ICPW
TCLK
TCLK
t
t
clkh
clkl
t
TCLK
t
extrst
t
clkl
Min
1.5
1.5
1.5
0
4
f
Bus
Max
—
—
—
—
Freescale Semiconductor
1/4
Unit
MHz
t
t
t
t
CYC
CYC
CYC
CYC