Merge pull request #48 from nam-ng/6.2.1-rx-1.2.0-rc2

Update for v6.2.1_rel-rx-1.2.0 RC2

configuration/samples/low_power/README.md

@@ -35,3 +35,9 @@ For example, if you create project with C++ option and CC-RX compiler, you will
 	_ebss = .;
 	_end = .;
 } > RAM
+
+2.3. If you are using Custom board, after the project generation is completed, please do the pin assignment check for IRQ.
+In Smart Configurator editor (<projectname>.scfg)
+- go to Pins tab
+- at Pin Function, select "Interrupt controller unit"
+- on the right panel, check and change the pin assignment for IRQ channel being used if it is incorrect