Epson S1R72V27 Manuale utente

Rev.1.0

S1R72V27

Evaluation Board Manual

NOTICE

No part of this material may be reproduced or duplicated in any form or by any means without the written

permission of Seiko Epson. Seiko Epson reserves the right to make changes to this material without notice.

Seiko Epson does not assume any liability of any kind arising out of any inaccuracies contained in this material

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All other product names mentioned herein are trademarks and/or registered trademarks of their respective

companies.

S1R72V27 Evaluation Board Manual EPSON

(Rev. 1.0)

Scope

This document applies to the “S1R72V27” USB 2.0 device - host controller LSI.

S1R72V27 Evaluation Board Manual EPSON i

(Rev. 1.0)

Table of Contents

1. Overview............................................................................................................................................ 1

2. Jumper Settings................................................................................................................................ 2

3. USB Interface Peripheral Circuit...................................................................................................... 3

4. CPU Interface .................................................................................................................................... 4

5. Power Supply .................................................................................................................................... 4

6. Precautions ....................................................................................................................................... 4

7. Appendix............................................................................................................................................ 5

7.1 External View........................................................................................................................... 5

7.2 Circuit Diagram........................................................................................................................ 6

7.3 Component List ....................................................................................................................... 6

7.4 Circuit Board Dimensional Diagram......................................................................................... 6

1. Overview

S1R72V27 Evaluation Board Manual EPSON 1

(Rev. 1.0)

1. Overview

This “S1R72V27 Evaluation Board”performs evaluations following connection to a CPU via a CPU I/F

connector. This document describes how to use the board.

2. Jumper Settings

2EPSON S1R72V27 Evaluation Board Manual

(Rev. 1.0)

2. Jumper Settings

Set the jumpers on the board as shown below. Settings marked “*” are default settings.

No. Details Setting (*indicates default)

CN2 +3.3 V supply to CPU board selection *1-2 Supplies +3.3 V (Note 1).

2-3 Does not supply +3.3 V

CN3 +5.0 V supply to CPU board selection *1-2 Supplies +5.0 V.

2-3 Does not supply +5.0 V

JP3 CPU interface voltage setting *1-2 +3.3V (Note2)

1-3 +1.8V

JP8～JP12 *Short Normal setting

S1R72V27 consumption current measuring jumper

(should normally be set to form a short-circuit) Open Setting prohibited

JP15 Short CN5: For both device/host

USB connector (CN5, CN6) function setting

(See section 3 for details.) *Open CN5: Device, CN6: Host

JP16 USB host VBUS output 122 µF location selection *1-2 VBUS switch IC output side

1-3 VBUS switch IC input side

JP17 *1-2 MAX8586-ENRESET pin = High

VBUS switch IC (MAX8586) auto-restart function

selection (See Maxim datasheet for details.) 1-3 MAX8586-ENRESET pin = Low

JP18 *Short With discharge resistor

USB host VBUS output 122 µF capacitor discharge

resistor selection Open Without discharge resistor

Note 1: Due to regulator limitations, avoid using this +3.3 V jumper during normal use.

Note 2: If the CPU I/F level is neither +1.8 V nor +3.3 V, but in between, leave both 1-2 and 1-3 open and apply the

voltage to pin 1.

3. USB Interface Peripheral Circuit

S1R72V27 Evaluation Board Manual EPSON 3

(Rev. 1.0)

3. USB Interface Peripheral Circuit

This board incorporates the following two USB connectors.

•CN5 (USB Mini B): For device functions

•CN6 (USB Standard A): For host functions

DP/DM pins for these connectors are also connected to the DP/DM pins on this IC to facilitate evaluations,

but these circuits are not recommended. This is because mounting components or using wiring patterns like

this may affect impedance matching and reduces signal quality, resulting in communication problems. For

more information, refer to the “S1R72V Series USB 2.0 Hi-Speed PCB Design Guidelines”.

Jumpers are provided on the USB interface peripheral circuit for this reason, and the jumpers should be set

appropriately to suit the evaluation requirements.

Case A: When using CN5 for the device and CN6 for the host

Case B: When using CN5 for both the device and host

Note: CN5 is a Mini B type and can be used only with devices in accordance with USB standards.

Case A Case B

JP15 OPEN Connect

JP16 Connect 1-2 Connect 1-3

JP18 Connect OPEN

R9, R10 Mount No Mount

4. CPU Interface

4EPSON S1R72V27 Evaluation Board Manual

(Rev. 1.0)

4. CPU Interface

Connect the CPU to the S1R72V27 via CN4. Refer to “7. Appendix: Circuit Diagrams” for pin assignment

specifics. The CN4 connector and mating connector (provided) are as shown below.

CN4 : NDP100-002-BF / Yamaichi Electronics

Opposite side : NDS100-002-BF / Yamaichi Electronics

5. Power Supply

Connect the board to a power supply with the following characteristics.

CN7

1pin +5V

2pin 0V

3pin N.C.

4pin N.C.

6. Precautions

The following measures are required to input a clock signal to the CLKIN pin.

•Mount CRU1.

•Remove C2, C3, R4, and R18.

•Connect pin XI via a jumper to GND. Leave pin XO open.

The input width to the CLKIN pin must be of the same voltage as CPU I/F Level designated with JP3.

However, for reasons related to the power supply to CRU1, note that this will be 1.8 V for this board.

7. Appendix

S1R72V27 Evaluation Board Manual EPSON 5

(Rev. 1.0)

7. Appendix

7.1 External View

CN4:

CPU interface connector

CN7:

Power supply connector

CN6:

USB host function

connector

CN5:

USB device function

connector

IC1:

S1R72V27

7. Appendix

6EPSON S1R72V27 Evaluation Board Manual

(Rev. 1.0)

7.2 Circuit Diagram

Refer to attachments.

7.3 Component List

Refer to attachments.

7.4 Circuit Board Dimensional Diagram

External dimensions: 100.00 x 80.00 [mm]

[Unit: mm]

Indice

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