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Distributor of Equinox Technologies: Excellent Integrated System Limited
Datasheet of EQ-IOCON-3 - MOD PPM3 CONN-3 I/O ATMEGA JTAG
Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com
5.0 Power Connections + Vcc Sense
5.1 Overview
The PPM3 programmer supports the following power supply options:
#
Description
1
Programmer provides controlled power (3.0 – 5.0V) to the Target System
2
Programmer provides static +5V DC to the Target System
3
Programmer and Target System are independently powered
4
Target System powers the Programmer (+5V DC only)
The setup for the above Power Supply Options is beyond the scope of this manual. Please refer to
the 'PPM3 – User Manual – Power Supply' section for further information.
5.2 Vcc Option Link
This link is used to connect the programmer internal +5V supply to the 'I/O Level Converters' and also
to the 'Target Vcc'. This link should NOT be fitted unless the programmer is to provide a static +5V
DC to the Target System. . Please refer to the 'PPM3 – User Manual – Power Supply' section for
further information.
5.3 Target Vcc Sense LED
This LED will illuminate when the Target Vcc reaches a threshold value. The sense circuit is powered
from the Programmer Vcc so as not to load the Target Vcc.
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