MCIMX25 Motorola Semiconductor Products, MCIMX25 Datasheet - Page 99

• Manufacturer Part Number: MCIMX25
• Manufacturer: Motorola Semiconductor Products

1
2
Freescale Semiconductor
In cases where SDMA TAP is put in the chain, the maximum TCK frequency is limited by the maximum ratio of 1:8 of SDMA
core frequency to TCK. This implies a maximum frequency of 8.25 MHz (or 121.2 ns) for a 66 MHz IPG clock.
V
SJ10
SJ12
SJ13
SJ11
SJ1
SJ2
SJ3
SJ4
SJ5
SJ6
SJ7
SJ8
SJ9
M –
ID
mid point voltage
(Input)
TRST
TCK cycle time
TCK clock pulse width measured at
TCK rise and fall times
Boundary scan input data set-up time
Boundary scan input data hold time
TCK low to output data valid
TCK low to output high impedance
TMS, TDI data set-up time
TMS, TDI data hold time
TCK low to TDO data valid
TCK low to TDO high impedance
TRST assert time
TRST set-up time to TCK low
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 2
(Input)
TCK
Parameter
SJ12
SJ13
Table 74. SJC Timing Parameters
Figure 75. TRST Timing Diagram
V
M
2
100
Min.
100
40
10
50
10
50
40
—
—
—
—
—
All Frequencies
1
Max.
50
50
44
44
—
—
—
—
—
—
—
—
3
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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