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Wiznet WIZ820io User Manual

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WIZ820io User Manual
(Version 1.0)
©2011 WIZnet Co., Ltd. All Rights Reserved.
☞ For more information, visit our website at
http://www.wiznet.co.kr
1
(WIZnet Co., Ltd.)
WIZ820io User Manual
Downloaded from
Elcodis.com
electronic components distributor

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Summary of Contents for Wiznet WIZ820io

  • Page 1 WIZ820io User Manual (Version 1.0) ©2011 WIZnet Co., Ltd. All Rights Reserved. ☞ For more information, visit our website at http://www.wiznet.co.kr (WIZnet Co., Ltd.) WIZ820io User Manual Downloaded from Elcodis.com electronic components distributor...

  • Page 2: Document Revision History

    Document Revision History Date Revision Changes 2011-09-15 V1.0 Official Release (WIZnet Co., Ltd.) WIZ820io User Manual Downloaded from Elcodis.com electronic components distributor...
  • Page 3 It can be used as a component and no effort is required to interface W5200 and Transformer. The WIZ820io is an ideal option for users who want to develop their Internet enabling systems rapidly. For the detailed information on implementation of Hardware TCP/IP, refer to the W5200 Datasheet.

  • Page 4: Pin Assignment & Description

    2. Pin assignment & description 2.1 Pin assignment < TOP side view > < Pin assignment > (WIZnet Co., Ltd.) WIZ820io User Manual Downloaded from Elcodis.com electronic components distributor...

  • Page 5: Pin Description

    150ms after high de-assert in order for PLL logic to be stable. SPI Master In Slave Out MISO This pin is used to SPI MISO signal pin. (WIZnet Co., Ltd.) WIZ820io User Manual Downloaded from Elcodis.com electronic components distributor...
  • Page 6 3. Device SPI operations WIZ820io is controlled by a set of instruction that is sent from a external host , commonly referred to as the SPI Master. The SPI Master communicates with W5200 via the SPI bus, which is composed of four signal lines: Slave Chip Select (nSS), Serial Clock (SCLK), MOSI (Master Out Slave In) and MISO (Master In Slave Out).
  • Page 7 Byte READ processing is operated. Otherwise, the Burst READ Processing is operated when the Data length is more than two. The MISO pin should be selected by driving MISO low after the falling edge of the nSS. (WIZnet Co., Ltd.) WIZ820io User Manual Downloaded from Elcodis.com electronic components distributor...
  • Page 8 // Data write command + Data length upper 7bits SpiSendData((data_read_command| ((data_len& 0x7F00) >> 8))); // Data length bottom 8bits SpiSendData((data_len& 0x00FF)); // Read data:On data_len> 1, Burst Read Processing Mode. for(int idx = 0; idx<data_len; idx++) (WIZnet Co., Ltd.) WIZ820io User Manual Downloaded from Elcodis.com electronic components distributor...

  • Page 9: Write Processing

    Data length is more than two. The MOSI pin should be selected by driving MOSI low after the falling edge of the nSS. < Write Sequence > (WIZnet Co., Ltd.) WIZ820io User Manual Downloaded from Elcodis.com electronic components distributor...
  • Page 10 // Write data: On data_len> 1, Burst Write Processing Mode. for(int idx = 0; idx<data_len; idx++) SpiSendData(data_buf[idx]); CSon(); // CS=1, SPI end IINCHIP_ISR_ENABLE(); // Interrupt Service Routine disable (WIZnet Co., Ltd.) WIZ820io User Manual Downloaded from Elcodis.com electronic components distributor...

  • Page 11: Timing Diagram

    4. Timing diagram 4.1 Reset Timing nRST PLOCK (Internal) Symbol Description Reset Cycle Time 2 us nRST internal PLOCK 150 ms (WIZnet Co., Ltd.) WIZ820io User Manual Downloaded from Elcodis.com electronic components distributor...
  • Page 12 High Time nSCS Hold Time nSCS Hold Time Data In Setup Time Data In Hold Time Output Valid Time Output Hold Time nSCS High to Output Hi-Z (WIZnet Co., Ltd.) WIZ820io User Manual Downloaded from Elcodis.com electronic components distributor...
  • Page 13 5. Dimensions Symbol Dimension(mm) Symbol Dimension(mm) 23.00 1.34 20.32 (2.54 x 8) 2.50 (+/- 0.50) 1.34 6.40 2.11 2.54 16.10 5.80 2.11 25.00 (WIZnet Co., Ltd.) WIZ820io User Manual Downloaded from Elcodis.com electronic components distributor...

  • Page 14: Reference Schematics

    6. Reference Schematics (WIZnet Co., Ltd.) WIZ820io User Manual Downloaded from Elcodis.com electronic components distributor...

  • Page 15: Warranty

    ONE(1) YEAR for the WIZ820io module and labor warranty after the date of original retail purchase. During this period, WIZnet will repair or replace a defective products or part free of charge. Warranty Conditions: 1.

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