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DEVELOPMENT TOOLS
"To User_Vcc"
Settings
To User_V
CC
Off
On
To User_V
CC
Off
On
NOTE: The following symbol in the "To User_Vcc" Setting column indicates the electrical short (off) configuration:
Main Clock Settings
X
IN
MDS
XTAL
X
IN
MDS
XTAL
20-4
Table 20-1. Power Selection Settings for TB8275/8/4
Operating Mode
TB8275
TB8278
TB8274
V
CC
SMDS2/SMDS2+
TB8275
TB8278
TB8274
V
CC
SMDS2/SMDS2+
Table 20-2. Main-clock Selection Settings for TB8275/8/4
Operating Mode
EVA Chip
S3E8270
X
OUT
X
IN
SMDS2/SMDS2+
EVA Chip
S3E8270
X
OUT
X
IN
Target Board
S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
Target
V
SS
System
V
CC
External
Target
V
CC
System
V
SS
No Connection
100 Pin Connector
XTAL
Comments
The SMDS2/SMDS2+
supplies V
to the target
CC
board (evaluation chip) and
the target system.
The SMDS2/SMDS2+
supplies V
only to the target
CC
board (evaluation chip).
The target system must have
its own power supply.
Comments
Set the XI switch to "MDS"
when the target board is
connected to the
SMDS2/SMDS2+.
Set the XI switch to "XTAL"
when the target board is used
as a standalone unit, and is
not connected to the
SMDS2/SMDS2+.
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