OM13489 16-bit GPIO User Manual
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© NXP B.V. 2014. All rights reserved.
Rev. 2.0 — 09 January 2014
3.1 Power Supply Setup
Power supply voltages may be selected from the tester connector CN4 or the Fm+ board
CN5. If one selects Fm+ CN5, either 3.3V or 5V can be chosen. Additionally, the
PCA(L)6416 device implements two power supplies which are separately chosen, i.e. one
can be 3.3V and the other 5V for voltage level translation evaluation. Both of these power
supplies can be supplied externally by using TP1 and TP2 near the tester connector CN4.
See the schematic section at the end of this document for more details.
The jumpers for power supply selection are CN3, JP3, and JP4
3.2 Reset, Interrupt, and Address pins selection
The Reset, Interrupt and Address pins are used in combinations on various devices. The
selection matrix on the 16-bit GPIO board sends pins 1, 2, and 3 to determine if the pins are
address or function on JP9, JP10, and JP11. Then, if they are determined address pins, JP1,
JP7 and JP8 tie them to logic high or low. If they are determined to be function pins, the
other position of JP9, JP10 and JP11 tie them to the correct connector function pins. See the
schematic section at the end of this document for more details.
The logic high level for the address pins is VDDP .
Please note that a fix is needed for correct operation of the A0 jumper JP1. A wire must
be soldered between pin 2 of JP1 and the via directly below to make connection to pin 21 on
the device under test IC1. Use 30 AWG wire wrap wire for the easiest connection. The solder
mask on the board will prevent any short circuits.
Please note that A1 and A2 jumpers are incorrectly labeled. JP7 and JP8 program I2C
addresses when selected. The labels show that A1 and A2 pins will be connected to ground
when the jumper shorts pin 1 and 2 (toward the bottom edge of the board). In fact, this is a
connection to V
DDP
or high. The schematic is correct, only the labels are incorrect.
Fig 2. Fix needed for correct operation of A0 jumper JP1
4. Board Jumper Set Up
4.1 Power Supply Jumpers
The power supply selections for the OM13489 is very flexible and allows for detailed analysis
and evaluation of all the NXP 16-bit GPIO devices. JP3 labeled PWR selects between 5V
supplied from the tester connector CN4 (jumper between pin 2 and 3 labeled TSTR) and the
Fm+ board connector CN5 (jumper between pin 1 and 2). If 3.3V or external power operation
is desired, no jumper is required.
