REL1.3
Page 54 of 80
RZ/G1M/G1N Qseven SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
2.9
Other Features
The RZ/G1M/G1N Qseven SOM has PCB footprint option for some features which are not supported by default. These
optional features are explained in the following sections.
To add any of these optional features in RZ/G1M/G1N Qseven SOM, please contact iWave.
2.9.1
JTAG Header
The RZ/G1M/G1N Qseven SOM supports one JTAG interface for CPU debug purpose. A customized 20-pin ARM JTAG
connector (J3) is available in SOM for JTAG interface. Even though this JTAG connector pinout is fully compatible with
“
ARM JTAG 20
”
connector, the physical dimension of connector is made smaller in RZ/G1M/G1N Qseven SOM because
of space constraint.
RZ/G1M/G1N CPU
’s
JTAG pins are 1.8V tolerant and so 1.8V reference power is provided to pin 1 of the connector to
allow JTAG tool to automatically configure the logic signals for the right voltage. JTAG connector (J3) is physically
located on topside of the SOM.
Figure 8: JTAG Header
Number of Pins
- 20
Connector Part
- GRPB102MWCN-RC from Sullins Connector Solutions
Mating Connector
- LPPB102CFFN-RC from Sullins Connector Solutions
