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2.6 Supplying Target LSI V
2.6.1 Supplying Target LSI V
EASE1000 has the pin (3.3VOUT) to output +3.3 V/100 mA (max) as a target LSI operation power supply.
When this power supply is used, the flash writer, on-chip debug emulator's application program download and
software breakpoint functions are available even when the power supply voltage of the target system is set to a value
outside the flash memory operation voltage range of the target LSI.
Note
2.6.1 Outputting Target System Power Supply to Target LSI V
The following shows a circuit configuration example for the case of outputting the target system power supply to the
target LSI V
without using 3.3VOUT of EASE1000.
DD
FEXTEASE1000-02
DD
from EASE1000
DD
EASE1000
interface connector
1
VTref
13
3.3VOUT
2,4,6,8,10,12
Vss
3,9,11,14
NC
Figure 2-7 Target System Connection Example (3.3VOUT Used)
When using the 3.3VOUT power supply of EASE1000, do not apply power of the target
system to the V
pin of the target LSI.
DD
If both power supplies are connected, it may damage EASE 1000 or cause an electric shock or
fire.
EASE1000
interface connector
1
VTref
13
3.3VOUT
2,4,6,8,10,12
Vss
3,9,11,14
NC
Figure 2-8 Target System Connection Example (3.3VOUT Not Used)
Chapter 2
Target LSI
V
DD
Vss
DD
Target LSI
Power Supply
V
DD
Vss
EASE1000 User's Manual
General Description
9
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