I.MX27 Datasheet, PDF (62/148 Pages) Freescale Semiconductor, Inc – Multimedia Applications Processor

Electrical Characteristics
TCK
(input)
TDI, TMS
(inputs)
TD0
(outputs)
J9
J8
Input Data Valid
J10
Output Data Valid
TD0
(outputs)
TD0
(outputs)
J11
J10
Output Data Valid
Figure 24. Test Access Port (TAP) Diagram
TCK
(input)
J13
TRST
(input)
J12
Figure 25. TRST Timing Diagram
Table 30. JTAGC Timing Parameters
ID
Parameter
J1 TCK cycle time in crystal mode
J2 TCK clock pulse width measured at VM¹
J3 TCK rise and fall times
J4 Boundary scan input data set-up time
J5 Boundary scan input data hold time
All Frequencies
Min
Max
30.08
—
15.04
—
—
2.0
3.5
—
16.0
—
Unit
ns
ns
ns
ns
ns
i.MX27 and i.MX27L Data Sheet, Rev. 1.5
62
Freescale Semiconductor