NXP Semiconductors PCAL6408A-ARD, Руководство пользователя, Страница: 10 / 25

NXP Semiconductors
UM11704
PCAL6416AEV-ARD evaluation board
620Ω series resistors (R15 – R22), to avoid bus conflict (short-circuit if the line is set
accidentally as output and the switch is pressed).
4.9 Jumpers and test points
The board contains two jumpers and several test points. Table 3 and Figure 3 details
the jumper locations and their default configurations. Table 4 describes the test points
located on the PCAL6416AEV-ARD board.
Ref Des Label Default Description
OFF: Disable the interrupt monitor LED (D3)
JP1 INT MONITOR ON / OFF OFF
ON: Enable the interrupt monitor LED (D3)
1-2: Enable the user LEDs (D4 – D11)
JP2 USER LED – ON / OFF 1-2
2-3: Disable the user LEDs (D4 – D11)
Table 3. PCAL6416AEV-ARD jumpers
Figure 3. PCAL6416AEV-ARD jumper locations
Ref Des Test point / jumper label Description
TP1 5V The 5V power supply
TP2 3.3V The 3.3V power rail
TP3 GND Ground
Table 4. PCAL6416AEV-ARD test points
UM11704 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved.
User manual Rev. 1.0 — 1 December 2021
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