Power Selection Settings for TB9228 | Samsung S3C9228/P9228 specs

DEVELOPMENT TOOLS	S3C9228/P9228

		Table 19-1. Power Selection Settings for TB9228
"To User_VCC"		Operating Mode			Comments
	Settings
	To User_VCC				The SMDS2/SMDS2+
	To User_VCC				supplies VCC to the target
Off	On				supplies VCC to the target
Off	On	TB9228	VCC	Target	board (evaluation chip) and
		TB9228	VCC	System	the target system.
			VSS	System	the target system.
			VSS
		VCC
		SMDS2/SMDS2+
	To User_VCC				The SMDS2/SMDS2+
	To User_VCC				supplies VCC only to the target
Off	On		External		supplies VCC only to the target
			External	Target	board (evaluation chip). The
		TB9228	VCC	Target	board (evaluation chip). The
		TB9228	VCC	System	target system must have its
			VSS	System	target system must have its
			VSS		own power supply.
		VCC
		SMDS2/SMDS2+

NOTE: The following symbol in the "To User_VCC" Setting column indicates the electrical short (off) configuration:

19-4

Samsung S3C9228/P9228, 8-Bit CMOS Microcontroller user manual Power Selection Settings for TB9228