MC9S08PT16 Datasheet, PDF (15/33 Pages) Freescale Semiconductor, Inc – MC9S08PT16

Switching specifications
5.2.2 Debug trace timing specifications
Table 6. Debug trace operating behaviors
Symbol
t_cyc
t_wl
t_wh
t_r
t_f
t_s
t_h
Description
Clock period
Low pulse width
High pulse width
Clock and data rise time
Clock and data fall time
Data setup
Data hold
Min.
Max.
Frequency dependent
2
—
2
—
—
3
—
3
3
—
2
—
Unit
MHz
ns
ns
ns
ns
ns
ns
Figure 7. TRACE_CLKOUT specifications
TRACE_CLKOUT
TRACE_D[3:0]
Ts
Th
Ts
Th
Figure 8. Trace data specifications
5.2.3 FTM 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 7. FTM input timing
No.
C
Function
Symbol
Min
Max
Unit
1
D
External clock
f_TCLK
0
f_Bus/4
Hz
frequency
Table continues on the next page...
MC9S08PT16 Series Data Sheet, Rev. 1, 7/4/2012.
Freescale Semiconductor, Inc.
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