Microchip Technology SAM Series

• Do not use diodes on PGC/PGD: They will prevent bidirectional communication between MPLAB ICD 4 and the
target PIC
®
MCU.
• Do not exceed recommended cable lengths: Refer to the Hardware Specification of the MPLAB ICD 4 online
help or user's guide for cable lengths.
Figure 9-2. ICD4 ICSP/JTAG/SWD Wiring Diagram
MCU
JTAG / SWD
8 Pin Cable
MCU
RJ-45
1
2
3
4
5
6
7
8
ICD4
RJ-45
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
RJ-11
RJ-11
ICSP 6
Pin Cable
RJ-11
1
2
3
4
5
6
RJ-11
1
2
3
4
5
6
MCU
RJ-45
1
2
3
4
5
6
7
8
ICD4
RJ-45
1
2
3
4
5
6
7
8
Signal
ICD4RJ45
(FemaleConn)
ICD4RJ11Cable
(MaleConn)
MCURJ11Cable
(MaleConn)
TargetMCURJ45
(FemaleConn)
(6)PinRJ11
(8)PinRJ11
(6)PinRJ11
(8)PinRJ11
TMS/SWDIO 8
NC
8
NC
11
AUX 7
6
7
1
22
TCK/SWTCLK/PGC 6
5
6
2
33
TDO/SWO/PGD 5
4
5
3
44
GND 4
3
4
4
55
VDD 3
2
3
5
66
NMCLR(#MCLR) 2
1
2
6
77
TDI 1
NC
1
NC
88
Debug Issues
© 2022 Microchip T
echnology Inc.
and its subsidiaries
Manual
DS70005439B-page 27