User manual
PICkit™ Serial Analyzer User’s Guide
DS51647A-page 20 © 2007 Microchip Technology Inc.
FIGURE 3-4: CONFIGURATION WIZARD – PAGE 2 OF 4
The I
2
C bus requires pull-up resistors. The PICkit Serial Analyzer has the ability to
enable internal 2.2 kΩ pull-up resistors. If the target device does not have pull-up resis-
tors installed, then enable pull-ups by selecting the Yes radio button as shown in
Figure 3-5. If the target device has the pull-up resistors installed, you can disable the
internal pull-ups by selecting the No radio button.
FIGURE 3-5: CONFIGURATION WIZARD – PAGE 3 OF 4
The PICkit Serial Analyzer can power the target device from 0 to 5 V
DC at a combined
total current limit of 100 mA (PICkit Serial Analyzer plus target device). The Configura-
tion Wizard Page 4 of 4, as shown in Figure 3-6, allows you to choose between
powering the target device and selecting the specific target voltage.
CAUTION
Even though the voltage can be set as low as 0 VDC, it is up to the user to verify the
required operating voltage of the target device.
CAUTION
The USB port current limit is set to 100 mA. If the target plus PICkit Serial Analyzer
exceeds this current limit, the USB port will turn off. The target may be powered
externally if more power is required.