TQ-Systems MBa335x, User Manual

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User's Manual l MBa335x UM 0202 l © 2018, TQ-Systems GmbH Page 39
Illustration 36: Position of JTAG, X24
Table 73: JTAG connector
Manufacturer / Number Description
Fischer Elektronik / SL-11-SMD-052-20-G-BTR Header, 2.54 mm pitch, 2 × 10 pins
Table 74: Pinout JTAG, X24
Pin Signal Dir. Remark
1 JTAG.VREF P 100 Ω to VCC3V3, use only as reference
2 VCC3V3 P 0 Ω to VCC3V3, I
max
= 10 mA
3 JTAG.TRST# I 10 kΩ Pull-Up to VCC3V3
4 DGND P
5 JTAG.TDI I 10 kΩ Pull-Up to VCC3V3
6 DGND P
7 JTAG.TMS I 10 kΩ Pull-Up to VCC3V3
8 DGND P
9 JTAG.TCK I 22 Ω in series
10 DGND P
11 JTAG.RTCK I 22 Ω to pin 9
12 DGND P
13 JTAG.TDO O 22 Ω in series
14 DGND P
15 JTAG.SRST# I 10 kΩ Pull-Up to VCC3V3; via buffer to JTAGRST#
16 DGND P
17 VCC3V3 P 10 kΩ Pull-Up to VCC3V3
18 DGND P
19 DGND P 10 kΩ to DGND
20 DGND P