NXP Semiconductors OM13541, Руководство пользователя, Страница: 7 / 29

NXP Semiconductors
UM11099
PCAL6534 demonstration board OM13541
UM11099 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2019. All rights reserved.
User manual Rev. 1.0 — 1 August 2019
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when the voltage is above VDDP x 0.7V. The LEDs remain off when the voltage is
between those two levels.
Table 3. J12, J13, J14, J15, J16 10-pin GPIO target board connector
J[12:16] pin # Function Board connection
1 VDDP_IN J7 pin 2 and TP2 (test point 2) and by J6 to VDDP (U1 pin A6)
2 GND Ground
3 P[0:4]_0 (I/O 0) U1 pin C1, D3, E3, E6, B5
4 P[0:4]_1 (I/O 1) U1 pin B2, F1, F4, E4, B4
5 P[0:4]_2 (I/O 2) U1 pin B3, E2, G5, D5
6 P[0:4]_3 (I/O 3) U1 pin D1, G1, G5, D6
7 P[0:4]_4 (I/O 4) U1 pin C2, G2, G6, D4
8 P[0:4]_5 (I/O 5) U1 pin C3, F2, F6, C5
9 P[0:4]_6 (I/O 6) U1 pin E1, G3, F5, C6
10 P[0:4]_7 (I/O 7) U1 pin D2, F3, E5, C4
3.6 All jumpers default setting and test points
Figure 2 shows the PCAL6534 demo board.
• D1 (red LED) is connected to interrupt output (U1 pin B1), it is ON when INT is
asserted
•
TP4 (INT) is connected to interrupt output (U1 pin B1) for probing use.
• TP1 and TP5 are GND test points for probing use.
• TP6 (EXT_OSC) is external clock input through J17 (1-2) to P2_0 (pin E3) for
debouncer circuit use
• TP2 (VDDP_IN) and TP3 (VDDI) are connected to external power inputs.
•
All jumpers default settings and functions are shown in Table 4 .
Table 4. All jumpers setting for test and evaluation
Jumper Default setting Comment
J7 (3-pin) 2-3 (VDDP_IN = +5V_
PWR)
This jumper is used to select VDDP for U1 device (pin A6)
1-2: 3V3
2-3: 5V_PWR
J2 (3-pin) 1-2 (VDDI_IN = +3V3) This jumper is used to select VDDI for U1device VDDI (pin A1)
1-2: 3V3 (from Fm+ development board)
2-3: 5V_PWR
J3 (3-pin) 1-2 (+5V = +5V_PWR) This jumper is used to 5V_PWR source
1-2: 5V from Fm+ development board
2-3: 5V_TSTR from tester (beagle) board
J4 (2-pin) Short Short: connect VDDI to U1 device VDDI (pin A1)
Open: connect current meter to measure the IDDI on U1 device
J5 (2-pin) Open Short: force /RESET (U1 pin A5) to GND
Open: 10K pull-up /RESET (U1 pin A5) to VDDI
J6 (2-pin) Short Short: connect VDDP_IN to U1 device VDDP (pin A6)
Open: connect current meter to measure the IDDP on U1 device