S3F9454B データシートの表示（PDF） - Samsung

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S3F9454B

8-BIT CMOS MICROCONTROLLER

Samsung 

DEVELOPMENT TOOLS

S3C9454B/F9454B

"To User_Vcc" Settings

To user_Vcc

off

on

Table 16-1. Power Selection Settings for TB9454B

Operating Mode

TB9454B

VCC

External

VCC

VSS

Target

System

Comments

The SK1000/SMDS2+ main

board supplies VCC to the

target board (evaluation chip)

and the target system.

SK-1000/SMDS2+

To user_Vcc

off

on

TB9454B

VCC

SK-1000/SMDS2+

External

VCC

VSS

Target

System

The SK1000/SMDS2+ main

board supplies VCC only to the

target board (evaluation chip).

The target system must have

its own power supply.

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

SMDS2+ Selection (SAM8)

In order to write data into program memory that is available in SMDS2+, the target board should be selected to be

for SMDS2+ through a switch as follows. Otherwise, the program memory writing function is not available.

"SW1" Setting

Table 16-2. The SMDS2+ Tool Selection Setting

Operating Mode

SMDS

SMDS2+

R/W*

SMDS2+

R/W*

Target

System

16-4

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