PXR40 Datasheet, PDF (81/100 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

Electrical characteristics
TCK
11
13
Output
Signals
12
Output
Signals
14
15
Input
Signals
Figure 16. JTAG boundary scan timing
5.12.4 Nexus timing
Table 32. Nexus debug port timing¹
Spec
Characteristic
1 MCKO Cycle Time
2 MCKO Duty Cycle
3 MCKO Low to MDO Data Valid⁴
4 MCKO Low to MSEO Data Valid⁴
5 MCKO Low to EVTO Data Valid⁴
6 EVTI Pulse Width
7 EVTO Pulse Width
8 TCK Cycle Time
9 TCK Duty Cycle
Symbol
t_MCYC
t_MDC
t_MDOV
t_MSEOV
t_EVTOV
t_EVTIPW
t_EVTOPW
t_TCYC
t_TDC
Min
Max
2²
8
40
60
–0.1
0.2
–0.1
0.2
–0.1
0.2
4.0
—
1
—
4⁵
—
40
60
Unit
t_CYC3
%
t_MCYC
t_MCYC
t_MCYC
t_TCYC3
t_MCYC
t_CYC3
%
PXR40 Microcontroller Data Sheet, Rev. 1
Freescale Semiconductor
81