Datasheet

S2
S3 S3
S4 S4
SWD_CLK (input)
Figure 29. Serial wire clock input timing
S11
S12
S9
S10
Input data valid
Output data valid
SWD_CLK
SWD_DIO
SWD_DIO
SWD_DIO
S13
Figure 30. Serial wire data timing
6.6.2
Trace electrical specifications
The following table describes the Trace electrical characteristics.
• Measurements are with maximum output load of 50 pF, input transition of 1 ns and
pad configured with fastest slew settings (DSE = 1'b1).
• While doing the mode transition (RUN -> HSRUN or HSRUN -> RUN ), the
interface should be OFF.
Table 36. Trace specifications
Symbol Description RUN Mode HSRUN Mode VLPR
Mode
Unit
— Fsys System frequency 80 48 40 112 80 4 MHz
Table continues on the next page...
Debug modules
S32K1xx Data Sheet, Rev. 4, 06/2017
56
Preliminary
NXP Semiconductors