NXP Semiconductors OM13489 Manuale utente

UM10752

OM13489 16-bit GPIO Daughter Card User Manual

Rev. 2.0 — 09 January 2014

User manual

Document information

Info

Content

Keywords

Fm+ Development Kit, OM13320, GPIO, OM13303

Abstract

Installation guide and User Manual for the OM13489 16-bit GPIO

Daughter Card that connects to OM13320 Fm+ Development Kit. This

board permits easy and simple evaluation of most of NXP’s 16-bit I2C

GPIO portfolio of products.

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Contact information

For more information, please visit:

http://www.nxp.com

For sales office addresses, please send an email to: salesaddresses@nxp.com

Revision history

Rev

Date

Description

2.0

20140109

Added A0 jumper hardware fix and CN5 schematic – changed from 14-pin to 18-pin with 4

pins not connected for correct connector seating on the Fm+ board. Active pins remain the

same. Labels for JP7 and JP8 (A1 and A2 address jumpers) are incorrect; 1 connects to

ground and 0 connects to VDDP

1.0

20131011

Initial Release

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1. Introduction

The OM13489 16-bit I2C GPIO Daughter Card connects to the OM13320 Fm+ Development

kit and permits easy evaluation of most of NXP’s 16-bit I2C GPIO portfolio of products.

Table_1 lists the supported devices.

The OM13489 16-bit I2C GPIO Daughter Card is shipped with no GPIO device soldered to

the board. The user must purchase the device he is interested in evaluating in a TSSOP24

package (the ordering part number suffix should be “PW” and the package designation

should be SOT355-1). These leaded packages should be relatively easy to solder to the

board with a low wattage, fine tipped soldering iron.

NOTE pin 1 orientation pointing toward C1.

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. See Section 3.2 for additional details.

Table 1. Devices Supported by OM13489 16-bit I2C GPIO Daughter Card

Device

Description

Orderable Part Number

PCA6416A

Low-voltage translating 16-bit I²C-bus/SMBus I/O

expander with interrupt output, reset, and

configuration registers

PCA6416APW

PCA8575

Remote 16-bit I/O expander for I2C-bus with

interrupt

PCA8575PW

PCA9535A

Low-voltage 16-bit I²C-bus I/O port with interrupt

PCA9535APW

PCA9535C

16-bit I2C-bus and SMBus, low power I/O port with

interrupt

PCA9535CPW

PCA9535

16-bit I2C-bus and SMBus, low power I/O port with

interrupt

PCA9535PW

PCA9539A

Low voltage 16-bit I²C-bus I/O port with interrupt

and reset

PCA9539APW

PCA9539

16-bit I²C-bus and SMBus low power I/O port with

interrupt and reset

PCA9539PW

PCA9539R

16-bit I²C-bus and SMBus low power I/O port with

interrupt and reset

PCA9539RPW

PCA9555A

Low-voltage 16-bit I²C-bus I/O port with interrupt

and weak pull-up

PCA9555APW

PCA9555

16-bit I2C-bus and SMBus I/O port with interrupt

PCA9555PW

PCA9671

Remote 16-bit I/O expander for Fm+ I2C-bus with

reset

PCA9671PW

PCA9673

Remote 16-bit I/O expander for Fm+ I2C-bus with

interrupt and reset

PCA9673PW

PCA9675

Remote 16-bit I/O expander for Fm+ I2C-bus with

interrupt

PCA9675PW

PCAL6416A

Low-voltage translating 16-bit I²C-bus/SMBus I/O

expander with interrupt output, reset, and

configuration registers

PCAL6416APW

PCAL9535A

Low-voltage 16-bit I²C-bus I/O port with interrupt

and Agile I/O

PCAL9535APW

PCAL9539A

Low-voltage 16-bit I²C-bus and SMBus low power

I/O port with interrupt and reset

PCAL9539APW

PCAL9555A

Low-voltage 16-bit I²C-bus GPIO with Agile I/O,

interrupt and weak pull-up

PCAL9555APW

PCF8575

Remote 16-bit I/O expander for I2C-bus

PCF8575PW

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OM13489 16-bit GPIO User Manual

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The pin configuration of these devices varies only a bit and the different pin selections are

made via jumpers.

2. Features of the OM13489 16-bit GPIO Daughter Card

Direct connection to OM13320 Fm+ Development kit

Footprint for a TSSOP24 package, user solderable

Jumper configuration accommodates most NXP 16-bit GPIO

Flexible power supply configuration: 3.3V, 5V or external supply

Direct connection to OM13303 GPIO Target board for I/O visualization

Jumper configuration of device I2C address

LED indicators for power and INT

Scope ground connection loop

3. Pin Configuration of 16-bit GPIO Devices

The different 16-bit GPIO devices pin configurations differ only slightly between devices. See

Fig 1 for a description of the different pinouts.

Fig 1. Pin Configuration 16-bit GPIO Devices

PCA9671

PCA(L)9535/55

PCA8575

PCA9675

PCF8575

PCA(L)9539

PCA9673

PCA(L)6416

PCA(L)9539

PCA9673

PCA(L)9535/55

PCA8575

PCA9675

PCF8575

PCA9671

RESET 124

VCC(I 2C- b us )

223

322

421

520

619

718

817

916

10 15

11 14

12 13

P0_2

P0_1

P0_0

INT

VSS

P0_7

P0_6

P0_5

P0_4

P0_3

P1_0

RESET

P1_5

P1_3

P1_4

P1_2

P1_1

VCC(P)

SDA

SCL

ADDR

P1_7

P1_6

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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 VDDP 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.

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CN3 selects between 5V and 3.3V for a second power supply needed for PCA(L)6408A. If

the device under test is not PCA(L)6408A, leave this jumper open.

JP4 selects between 5V and 3.3V for the main power supply on pin 16 of the device under

test. Add a jumper between pins 2 & 3 for 3.3V or 1 & 2 for 5V.

For external power supply operation, do not jumper CN3, JP3 and JP4 and connect a voltage

source to TP2 for the main power supply connected to pin 16 of the device under test.

Connect another external voltage source to TP1 if the device under test is PCA(L)6408A.

See the schematic section at the end of this document for more details.

Fig 3. Power Jumpers and External Power Test Points

4.2 SCL and SDA Jumpers

The I2C-bus signals SDA and SCL supplied to the device under test can be sourced from

either the Fm+ board via CN5 or the tester via CN4. Jumpers JP5 and JP6 select the source.

Shorting pins 1 to 2 source from the Fm+ board while shorting pins 2 to 3 source from the

tester connector CN4.

See the schematic section at the end of this document for more details.

Fig 4. SDA and SCL Jumpers

4.3 PCA8575, PCA9535A, PCA9535C, PCA9535, PCA9555A, PCA9555,

PCA9675, PCAL9535A, PCAL9555A, PCF8575

The PCA8575, PCA9535/A/C, PCA9555/A, PCA9675 and PCF8575 series implement three

address pins and INT . This configuration ignores the power supply setup, but normally,

only JP4 with a jumper between pins 2 & 3 need be applied to power the device at 3.3V.

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To configure the function pins, apply jumpers between pins 1 & 2 on JP10 and JP11 to

configure device pin 2 and pin 3 as addresses. Apply a jumper between pins 2 & 3 on JP9 to

configure device pin 1 as INT .

Then, apply jumpers to JP1, JP7 and JP8 to configure the desired I2C address. Logic high or

logic low is labeled on the board, but is incorrect for JP7 and JP8. Using the labels, a 0 is

actually a 1 and a labeled 1 is actually a 0. The schematic is correct and note the square

solder pad is pin 1.

Fig 5. Jumper Configuration for PCA8575, PCA9535A, PCA9535C, PCA9535,

PCA9555A, PCA9555, PCA9675, PCAL9535A, PCAL9555A, PCF8575

4.4 PCA9671

The PCA9671 implements three address pins and RST . This configuration ignores the

power supply setup, but normally, only JP4 with a jumper between pins 2 & 3 need be

applied to power the device at 3.3V.

To configure the function pins, apply jumpers between pins 1 & 2 on JP9, JP10 and JP11 to

configure pin 2 and pin 3 as addresses and pin 1 as RST .

Then, apply jumpers to JP1, JP7 and JP8 to configure the desired I2C address. Logic high or

logic low is labeled on the board, but is incorrect for JP7 and JP8. Using the labels, a 0 is

actually a 1 and a labeled 1 is actually a 0. The schematic is correct and note the square

solder pad is pin 1.

Fig 6. Jumper Configuration for PCA9671

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4.5 PCA9673, PCAL9539A, PCA9539A, PCA9539R, PCA9539

The PCA9673 and PCA9539 series implement two address pins, RST and INT . This

configuration ignores the power supply setup, but normally, only JP4 with a jumper between

pins 2 & 3 need be applied to power the device at 3.3V.

To configure the function pins, apply jumpers between pins 2 & 3 on JP9 and JP11 to

configure device pin 3 as RST and device pin 1 as INT . Apply a jumper between pins 1 &

2 on JP10 to configure device pin 2 as an address.

Then, apply jumpers to JP1 and JP7 to configure the desired I2C address. Logic high or logic

low are labeled on the board. Leave JP8 open. The labels are incorrect for JP7 and JP8.

Using the labels, a 0 is actually a 1 and a labeled 1 is actually a 0. The schematic is correct

and note the square solder pad is pin 1.

Fig 7. Jumper Configuration for PCA9673, PCAL9539A, PCA9539A, PCA9539R,

PCA9539

4.6 PCAL6416A, PCA6416A

The PCA(L)6416A devices are level translating, Agile I/0 Expanders with two power supplies,

one address pin, RST and INT . The two power supplies may operate at different voltages

to translate from the I2C-bus voltage domain to a higher or lower I/O voltage. CN3 and JP4

may be set to the same or different voltages, or left open and external voltage sources

connected to TP1 and TP2. See the datasheet for more details on voltage level translation.

Note that the 10K pull up resistors SDA and SCL, R5 and R6, are connected to VDDP which

may cause incorrect current readings if two different supplies are used.

To configure the function pins, apply jumpers between pins 2 & 3 on JP9, J10 and JP11 to

configure device pin 2 as a power supply, device pin 3 as RST and device pin 1 as INT .

Then, apply a jumper to JP1 to configure the desired I2C address. Logic high or logic low are

labeled on the board. Leave JP7 and JP8 open.

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Fig 8. Jumper Configuration for PCA(L)6416

5. Connector Pinouts

5.1 CN1 GPIO Target Board Connector

The OM13303 GPIO Target Board consists of eight LEDs and eight switches and connects

directly to the 16-bit GPIO board through CN1. The switches and LEDs permit easy exercise

of the I/O functionality of the device under test. The LEDs light red when the voltage on that

channel is below VCC x 0.3V and lights green when the voltage is above VCC x 0.7V. The

LEDs remain off when the voltage is between those two levels.

Table 2. CN1 GPIO Target Board Connector Pinout

CN1 Pin Number

Function

Board Connection

VDD

VDDP

Ground

GND

IO0

U1 pin 4

IO1

U1 pin 5

IO2

U1 pin 6

IO3

U1 pin 7

IO4

U1 pin 9

IO5

U1 pin 10

IO6

U1 pin 11

IO7

U1 pin 12

5.2 CN5 Fm+ Development Board Connector

The OM13489 can connect directly to the OM13320 Fm+ Development kit via CN5. This

connector provides power, I2C signals and other ancillary signals.

Note: The connector on the Fm+ board is a male, shrouded 14 pin type, while the connector

on the GPIO board is female, 18 pin.. The reason lies with the shroud around the 14 pin

connector. To ensure correct mating of the female with the male, two pin positions on both of

the female sides are unused.

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Table 3. CN5 Fm+ Board Connector

CN5 Pin Number

Function

Board Connection

—

No connect

—

No connect

SCL

SCL Bus 1 to U1 pin 14

SDA2

SDA Bus 2 not used

INT

Interrupt to INT LED and JP9 pin 3

RESET

JP9 pin 1, JP11 pin 3

+5V

JP3 pin 1

+3.3V

CN3 pin 3 and JP4 pin 3

GND

+3.3V

CN3 pin 3 and JP4 pin 3

+5V

JP3 pin 1

RESET

JP9 pin 1, JP11 pin 3

INT

Interrupt to INT LED and JP9 pin 3

SDA

SDA Bus 1 to U1 pin 15

SCL2

SCL Bus 2 not used

—

No connect

—

No connect

5.3 CN4 Tester Connector

Generation, inspection and logging of I2C-Bus data is easily achieved with third party

development tools from Total Phase (www.totalphase.com) There are two tools called

Aardvark and Beagle that direct connect to this board through CN4.

Note: Since SDA and SCL are both connected to the device under test, the Aardvark and the

Fm+ Development board cannot be used simultaneously. The Beagle, a bus sniffer, does not

have any issues.

Table 4. CN4 Tester Connector

CN4 Pin Number

Function

Board Connection

SCL

U1 pin 14

Ground

SDA

U1 pin 15

+5V

JP3 pin 3

+5V

JP3 pin 3

+5V

JP3 pin 3

—

Ground

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