Power One SFP450 Series Programming Manual

I2c interface

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All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One.
SFP450/600 I
1
Scope
This document describes in detail the I
SFP600, ....) This includes the physical layer and the SW protocol.
2
SFP450/600 I
2
SFP450/600 I
C interface
2
I
C Device Addressing Format
Device Address Range
Max. SFP450/600 on one I
2
Maximum I
C clock
2
Maximum I
C clock without holding the SCL line down
Pull-Up Voltage
SDA/SCL internal series resistors
Internal Pull-Up
Internal Pull-Up voltage
Internal capacitance
Internal Pull-Up Address lines
Internal Pull-Up Address lines voltage
Internal Pull-Up Write Protect
Recommended external Pull-Up for SDA and SCL
Data Organization
Figure 2-1 Characteristic
Title
SFP450/600 I
www.power-one.com
2
C Interface Programming Manual
2
C communication interface of the SFP450/600 series. (SFP450-,
2
C Interface General Characteristic
2
C Bus
2
C Interface Programming
Manual
Size
Scale
A4
slave
7bit
AC
...AF
Hex
2
100kHz
Serial EEPROM:
Status Port:
3.3...4V
100Ω
10kΩ
3.3V
140pF
3.2kΩ
3V
4.7k
1.2kΩ ...2kΩ
-Serial EEPROM (256 x 8bit)
-Status Port with commands
Issued
Modified
Mech. Eng. approved
Marketing approved
Mfg. approved
Sheet
Drawing No.
BBA20005-G
1/21
7F
7D
Hex,
Hex,
Hex
100kHz
6.5kHz
2006-05-19
--
--
Supersedes: -
SKl
--
--
--
Revision
001

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Summary of Contents for Power One SFP450 Series

  • Page 1 All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. SFP450/600 I C Interface Programming Manual Scope This document describes in detail the I C communication interface of the SFP450/600 series. (SFP450-, SFP600, ….) This includes the physical layer and the SW protocol.
  • Page 2: Table Of Contents

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. Index Scope..............................1 SFP450/600 I C Interface General Characteristic .................1 Index ..............................2 SFP450/600 I C features........................3 Dynamic data ..........................3 Static data............................3 Connecting the SFP450/600 to the I C Bus...................4...
  • Page 3: Dynamic Data

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. SFP450/600 I C features 4.1 Dynamic data The SFP450/600 series supports following monitoring features: -Measured Output 1 voltage [V]...
  • Page 4 All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. General I C HW configuration C Bus C Bus Master SFP450/600 One or two SFP450/600 SFP450/600 Other I Devices Figure 4-1 System Overview 4.3 Connecting the SFP450/600 to the I...
  • Page 5: Device Address

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 4.4 SFP450/600 I C Supply (Slave) The SFP450/600 Micro Controller/EEPROM is powered over the internal supply of the SFP450/600. For redundancy in case of DC failure or SFP450/600 internal failure the SFP450/600 Micro Controller/EEPROM can be powered over the “+3.3VSB”...
  • Page 6: Maximum And Minimum Values For Pull-Up Resisters

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. Example: On the backplane PS A0 is connected to 0V, you will have the following device address to read...
  • Page 7: Sw Protocol

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. SW Protocol The static data are stored in a serial I C EEPROM and the dynamic data can be requested over the Status Port with three commands.
  • Page 8: How To Read An Eeprom Byte

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.1.1 How to Read an EEPROM byte 1) "Start condition" from Master 2) Master sends "Device address" with "write attribute"...
  • Page 9: How To Read An Eeprom Data Block

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.1.2 How to read an EEPROM data block 1) "Start condition" from Master 2) Master sends "Device address" with "write attribute"...
  • Page 10: How To Write An Eeprom Byte

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.1.3 How to write an EEPROM byte 1) Pull down the Write Protect line (Pin A4) 2) "Start condition" from Master 3) Master sends "Slave address"...
  • Page 11: Power One Eeprom Definitions

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.1.4 Power One EEPROM Definitions 5.1.4.1 Timestamp The UNIX timestamp is a 32-bit big-endian integer that represents the number of seconds since January 1, 1970 at 00:00:00 UTC (GMT).
  • Page 12: Dynamic Status Port Data

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.2 Dynamic Status Port Data The I C Master can read from the status port the status of the PS, the measured voltage and current. There exist three commands.
  • Page 13: Status Byte Definition

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.2.1 Status Byte definition Explanation Bit 0 PS present = 0 (True) False = 1 This Signal indicates that the PS is present.
  • Page 14: How To Read The Status Byte From Status Port

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.2.3 How to read the status byte from Status Port To read the status byte, is like reading from a serial EEPROM at address 0x01.
  • Page 15: How To Read The Measured Output Voltage/Current

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.2.4 How to read the measured output Voltage/Current 1) "Start condition" from Master 2) Master sends "Status Port Device address" with "write attribute"...
  • Page 16: Error Handling

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. Error Handling Errors in the communication can occur. The following flowchart shows how the Bus Master can handle such errors.
  • Page 17: Read Static Serial Eeprom

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.3.2 Read Static serial EEPROM Start Read first Byte from EEPROM Read next EEPROM Byte All Bytes read checksum ok?
  • Page 18: Read Status Port

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. 5.3.3 Read Status Port To be sure that there are no corrupt data, you have to read the data twice.
  • Page 19 All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. Power-One I C Interface tool The Power-One I C – Management Software (HZZ02002SW, www.power-one.com) demonstrates all the C interface features of the SFP450/600.
  • Page 20 All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. FCI Power Blade D-Sub (51721-10002406AA) (37 pol) HZZ02002G AC main SFP450/600 pin 25 pin C5 pin 24 pin B5...
  • Page 21: Bibliography

    All rights strictly reserved. Reproduction or issue to third parties in any form is not permitted without written authority from Power-One. Bibliography -Philips Semiconductors, The I 2C-BUS Specification, V.2.1, Document order number: 9398 393 40011 www.semiconductors.philips.com/ acrobat/literature/9398/39340011.pdf -Philips SemiconductorsI2C Handbook www.semiconductors.philips.com/ acrobat/various/philips_i2c_handbook.pdf...

This manual is also suitable for:

Sfp600 seriesSfp450-s102Sfp600-s102

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