Avago USB-2-I2C Operating Manual

USB-2-I2C

Conversion Kit for HDJD-JD13

Operating Hardware Manual

Introduction

The USB-2-I2C kit is a simple conversion board, which
allows USB connectivity for existing Illumination & Color
Management (ICM) development kit that uses parallel
port interface to connect to an IBM-PC computer. This
conversion board doesn’t need any new USB driver to
work since the driver is come pre-installed in Windows
2000/XP operating system.

The USB-2-I2C conversion kit comes with the following:

• USB-2-I2C Conversion Board (Figure 1-1)

• Parallel port conversion cable

• USB cable

• USB-2-I2C Conversion Kit Operating Hardware Man-

ual

• CMS Program (V1.5.0) for communicating with HDJD-
J822

• CMS Program (V2.1.0) for communicating with ADJD-
J823

If you are missing any part of the kit, please contact your
nearest Avago Technologies sales oce listed in the back
of this publication for help.

USB-2-I2C Conversion Board

The USB-2-I2C conversion board has the following hard­ware features:

1. USB port and associated hardware for direct connec­tion to an IBM-PC computer USB port

2. 5V to 3.3V voltage level shifter IC

3. Micrcontroller for USB to I2C data transfer

4. Jumper to select either using USB +5V or external
+5V

5. PCB mounting socket for external +5V supply

6. PWM Flex connector that connects to external LED
driver

7. HDJD-JD04 Flex Connector that connect the HDJD­JD04 exible circuit board

8. PWM header pin that connects to external LED
driver

9. General purpose external I/O connector to connect to
the unused I/O port of the onboard microcontroller

10. I2C interface that connects to existing ICM develop­ment kits that needs USB connectivity. This interface
connects to a parallel port conversion cable.

11. In-circuit programming port for microcontroller

Figure 1. USB-2-I2C Conversion Board

3

2

1

10

4

5

7

6

9

8

11

USB-2-I2C Conversion Kit Hardware User Guide

This guide describes the USB-2-I2C conversion board,
including hardware component layout and schematic.

Chapter 1 : Introduction

• This chapter introduces the USB-2-I2C Conversion Kit
and provides a brief description of the hardware.

Chapter 2 : Hardware Description

• This chapter describes in detail the hardware of the
USB-2-I2C Conversion Board.

Reference Documents

Reference documents listed below are included in the
CD-ROM.

• CMS Program User Guide
(included in the CMS installation program)

• USB-2-I2C User Guide

2

Hardware Detail

The USB-2-I2C Conversion Kit hardware is extremely
simple to use and is intended to help user by providing
a tool for user to convert the parallel port based develop­ment kit into USB compatible port.

Power Supply

The conversion board is designed to run without any sort
of power supply by harnessing the power from the PC
USB port (+5V). The power port is provided on the board
in case user would like to use an external power supply if
the power requirement is more than 500mA. JP1 is used
to switch between these two form of supply source.

I2C port for parallel cable convertor

This port is hook up with the parallel cable convertor
(included in the kit) to allow user to interface with Avago
Technologies ICM development kit that uses parallel port
interface.

Figure 2. JP1 Power Selector

USB Port

A USB port interface is to provided for easy interfacing
with an IBM-PC computer. The port is used to emulate
I2C communication, using the onboard microcontroller
as the protocol translator. Normal type-B USB cable is
used to hook up the board with the computer.

Onboard I2C Voltage Level Shifter

An onboard voltage level shifter, Philips P82B96, is pro­vided to allow the board to work with dierent I2C bus
voltage.

External Input-Output Connector

Various ports are provided to allow easy interfacing with
additional peripherals (not included with this kit). These
ports include :

• PWM output in header pin and ex-cable connector
(J3/4)

• External I/O pin (J5) for user development purpose

• HDJD-JD04 ex-cable connector (J2) for interfacing

with ADJD-J823 ex-cable version

Figure 3. Parallel Convertor Cable

In-Circuit Serial Programming (ICSP) Connector

By way of the header connector (J9), the PIC18LF2455
protocol translator microcontroller can be connected
for onboard reprogramming. The ICSP connector utilizes
RB6 and RB7 of the microcontrller for in-circuit serial pro­gramming. This connector is compatible with Microchip
Promate 2 programmer or ICD-2 in-circuit debugger,
which support ICSP interface.

3

USB
Enumeration

Indicator

Power
Indicator

Using USB-2-I2C Conversion Kit (using HDJD-JD13)

The following image illustrates how the conversion
board is connected with Avago Technologies HDJD-JD13
ICM evaluation kit.

Since the parallel conversion cable doesn’t have power
pin, power supply is needed to power up HDJD-JD13 ICM
Evaluation Kit. Make sure the jumper JP1 on USB-2-I2C
conversion board is set to 5VUSB.

Connect the USB cable to an IBM-PC computer USB port.
Once the cable is connected, 2 LED indicators on the
USB-2-I2C should be lighted up. The power indicator will

light up rst follow by the enumeration indicator (usu­ally after 1-2 seconds). When both indicators light up, it
means the USB enumeration on the PC is complete and
the board is ready to use with the CMS software (v1.5.0).
For instruction on how to use CMS software, please refer
to the software guide document that comes with the
CMS software installation program. The document is ac­cesible through the Start Menu -> Program -> CMS 1.5.0

-> Software Guide.

Figure 4. Setup connection for USB-2-I2C with HDJD-JD13

Figure 5. Disconnect state

4

Figure 6. Connect and successful enumeration state

Schematic

MC LR1RC 011RC 112RC 213VU SB14RC 4/D -15RC 5/D +16RC 617RC 718OSC 1

9

OSC 2

10

VD D

20

VS S8VS S

19

RA 02RA 13RA 24RA 35RA 46RA 5

7

RB 021RB 122RB 223RB 324RB 425RB 526RB 627RB 7

28

U1

PIC 18LF 2455

R1

470R

C1

0.1uF

R2

10k

1 4

2 3

S1

VC C

C2

0.1uF

Y 1

20MHz

C3

22pF

C4

22pF

123

4

5

CN1

CN-U SB

R3

27RR427R

C5

0.1uF

C11

10nF

L1

FE RR IT E

R5

470R

LE D2

GR N

R6 0R

R7 0R

R8 0R

R9 0R

R10 0R

R11 0R

R12 0R

R13 0R

R14 0R

SC L

SDA

VP

D1

1N4001

R15

100k

R16

100k

VU SB

VU SB

12345

6

J9

IC SP (R PIN)

VP

VC C

Tx3Rx2Ty

5

GN D

4

Sx

1

Sy

7

Ry

6

V CC

8

U3

P82B96T

R18

2k7

R17

2k7

C5

0.1uF

R19

2k7

R20

2k7

C6

1uF

3.3V

C7

1uF

3.3V

VC C3.3V

1

2

J1

PWR (SOC KE T)

123456789

10

J2

SY S (F LE X)

VC C

SL EE P

MR

MR

SL EE P

PWMR

PWMG

PWMB

123

4

J3

PWM ( PIN)

123

4

J4

PWM ( FL EX )

123

4

J8

I2C ( JST )

SC L5V

SDA5V

VC C

12345

6

J7

I2C ( PIN)

VC C

SDA

SC LMRSL EE P

12345

6

J6

PWR (PIN )

GND

GND

IO0

IO1

IO2

IO3

IO4

IO5

12345

6

J5

IO ( PIN)

IO0

IO1

IO2

IO3

IO4

IO5

5VNCSDA

SC L

SL EE PMRPWMR

PWMG

PWMB

GND

PWMR

PWMG

PWMB

GND

PWMR

PWMG

PWMB

GND

VC C

SC L

SDA

GND

VC C

SC L

SDA

SL EE PMRGND

5V5V3.3V

3.3V

GND

GND

I/O0

I/O1

I/O2

I/O3

I/O4

I/O5

321

JP1

PWR SE LE CTOR

VC C 3.3V

R21

470R

LE D1

GR N

USB OK

Vi n

1

GN D

2

Vout

3

U2

LE 33

SCL5V

SDA5V

The following gure shows the schematic of the USB-2-I2C Conversion Board.

Figure 7. USB-2-I2C conversion board schematic

5

For product information and a complete list of distributors, please go to our web site: www.avagotech.com

Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Limited in the United States and other countries.
Data subject to change. Copyright © 2007 Avago Technologies Limited. All rights reserved.
AV02-0065EN - January 9, 2007