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TCK
11
15
14
12
13
Output
Output
Input
Signals
Signals
Signals
Figure 25. JTAG boundary scan timing
18.1.2 Nexus interface timing
Nexus timing specified for the whole V
DD_LV
and V
DD_HV_IO
dynamic, T
A
= T
L
to T
H
,
and maximum loading per pad type as specified in the I/O section of the data sheet.
Table 36. Nexus debug port timing
#
Symbol
Characteristic
Value
Unit
Min
Max
1
t
EVTIPW
EVTI Pulse Width
4
—
t
CYC
,
2
t
EVTOPW
EVTO Pulse Width
40
—
ns
3
t
TCYC
TCK cycle time
4
—
t
CYC
4
t
TCYC
Absolute minimum TCK cycle time
(TDO sampled on posedge of
TCK)
—
ns
Table continues on the next page...
AC specifications
SPC5746R Microcontroller Data Sheet, Rev. 6, 06/2017
NXP Semiconductors
61