K20P121M100SF2 Datasheet, PDF (21/68 Pages) Freescale Semiconductor, Inc – Up to 100 MHz ARM Cortex-M4 core with DSP instructions delivering 1.25 Dhrystone MIPS per MHz

Peripheral operating requirements and behaviors
6.1.1 Debug trace timing specifications
Table 10. 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 3. TRACE_CLKOUT specifications
TRACE_CLKOUT
TRACE_D[3:0]
Ts
Th
Ts
Th
Figure 4. Trace data specifications
6.1.2 JTAG electricals
Table 11. JTAG limited voltage range electricals
Symbol
J1
Description
Operating voltage
TCLK frequency of operation
• Boundary Scan
• JTAG and CJTAG
• Serial Wire Debug
Min.
2.7
0
0
0
Max.
3.6
10
25
50
Table continues on the next page...
K20 Sub-Family Data Sheet Data Sheet, Rev. 4, 3/2011.
Freescale Semiconductor, Inc.
Preliminary
Unit
V
MHz
21