PI3WVR12612NEE Demo Board User Manual - Digi-Key
Contents
1. J MPERICOM EE KE Application Note PISWVR12612NEE Demo Board Rev B User Manual by Ada Yip Table of Contents 1t IMTOdUCHON EE 2 PE E E E A E E E E E A A E E 2 se e ON 4 4 Circuit EE NI de EE 5 Al le e 9 ee ee ee ene ene eee eee 5 4 2 3 3V 5V Ge Te TEE 5 BS POWER SAVING E Oe e TE 6 4 4 DP Main link Path in DP OCI OM E 6 d r AUXDDC Palih in DP ee Oe ee ee ee ee ee ee ee ee ee ue 7 tree 7 App ndix A Dem Board SCMGIM AU C vice sects cece te snet as tuscan cesar censducuce aana aaa 8 Page 1 of 9 AN e 8 2 2013 www pericom com eem A Enabling Serial Connectivity 8 1 Introduction PISWVR12612 is a 4 lane mux or de mux DP1 2 and HDMI1 4 switch for source as well as sink applications This user manual describes the components and the usage of PISWVR12612NEE demo board rev B for source application 2 Overview Figure 1 and 2 are the block diagrams DP section and HDMI section respectively of Pericom PISWVR12612NEE demo board rev B Top view and layout of the demo board are shown in figures 3 and 4 respectively For source application evaluation two DP plug connector J101 on PISWVR12612NEE demo board is used for plugging a DP source device such as graphic card A DP cable can be connected between a DP receptacle connector J102 or 103 on the demo board and a DP sink device such as DP monitor 5V DC can be employed to the demo board via a mini USB female connector J104 Through a 3 3V re2. 33 DP shorted wia shor Figure 8 AC Coupling Capacitors on Main link and AUX Paths of PI3WVR12612 Demo Board Rev B Pericom Semiconductor Corp l 8 2 2013 www pericom com AN Lj PERICOM ee Applicatio er O Enabling Serial Connectivity C Q ote 4 5 AUX DDC Path in DP Section At default demo board setting input and output AUX paths of PISWVR12612 at U101 are selected If a dual mode DP source device is attached to input DP connector at J101 and a TMDS sink device is attached to an output DP connector at J102 3 DDC signals are transmitted through AUX path of the input DP connector Thus AC coupling capacitors at C113 4 should be removed and 0Q resistors should be assembled on R103 4 to use the input DDC paths of PISWVR12612 at U101 Similarly R122 5 resistors should be removed and OQ resistors should be assembled on R126 9 to connect output DDC paths of PISWVR12612 at U101 Um T PEWVATZSIP NERR EGASD AUX DP OST BA Hl OF f D B DP DX DF Y Cild s Dr U E DF i O B DP A126 He PCL A DP LI d pz j D ki L O He D24 B DP A RNP ECL E DFP Us E DF 3126 NP UA E DF Di 6 DP HTC ei NP Use DDC paths if SR DVI adaptor is attached to DP connector J102 3 VDD and GND pins should be shorted to PCE power planes wia shortest paths Figure 9 Main link and AUX DDC Connections of PISWVR12612 Demo Board Rev B 5 References 1 VESA DisplayPort Standard Version 1 Revision 2 Video Elec
3. 4 3 4 4 Page 6 of 9 Visit mg If 3 3V from a DP source is used for powering up the DP section of the demo board header JP101 is shorted If 5V from an HDMI source is used header JP102 is shorted C 33 USB pin bo BIS20LW Figure 7 3 3V 5V Source Powers for PISWVR12612 Demo Board Rev B Power Saving Mode PISWVR12612 can enter power saving mode by setting OE pin to low voltage level OE I O Pins of PISWVR12612 Pins 1 and 8 of SW101 Pins 1 and 8 of SW102 Normal Mode Short for DP Evaluation Short for HDMI Evaluation Power Saving Mode Open for DP Evaluation Open for HDMI Evaluation Table 2 OE Setting of PISWVR12612 Demo Board Rev B DP Main link Path in DP Section 0 1uF AC coupling capacitors at C105 112 are employed on all main link channels beside the input DP connector at J101 assuming that input source is DC coupled If input source is already AC coupled these AC coupling capacitors can be replaced by OQ resistors Similarly 0 1uF AC coupling capacitors at C113 4 are originally designed for AUX channels and can be replaced by 0Q resistors if input source is AC coupled mor Sa SB PISWVRI2Z612NEE EE k 9 OF ae z m GPU S gag DDC ALX SEL a VI Gs E Ce feed E CT SA m DR CH Esc _ _ TM 38 leese B B A LP CAB DET DP C OF AUA DF AUX DP OTA mo S CH CR Use DDC paths if DP HDMI DVI adaptor is attached to DP connector J102 3 VDE gt D
4. PUT zen Visit digikey com At least ipc 4 7uF and 2pc 0 1uF decoupling capacitors are recommended Each decoupling capacitor should be connected to PCB power plane via shortest path PC DOC AUX SEL HOMI 8 W3_2 L4 34 D s A HDMI aT 4 ag CRTA HOR SCL A HM SDA A HDMI pu set FAI ZE dpb gt bbb S S S DDC_AUX_SEL EESSSRC SST WA Se prow VDD and GND pins should be shorted to PCB power planes via shortest paths SCL B HDMI D2 A HDMI D2 A HDMI DIFA H D1 A HDMI UO A HUN pox O SHIELD Do A HDMI nd CK KM SHIELD aa 2 SE Ck A HDMi S SCL HDMI HPD A HOM ESY 0 v Modification on 2 5 13 EEEEEEEFEE eheh ehk CH o ooo 7 KE HDMI OUTPUT D2 B HDMI D2 B HDMI Dis B HON D 5 Oe SHIELDS Da D Ir pi Hier B D1 B HDMI 2 Do Do SHIELD Do DO B HON Do B HDMI CK CK B HDMI WM SHIELD B HON E SCL HDMI2 DA AONE zoo Modification on 2 5 13 12612 HDMI 12 DEMO BOARD SCHEMATIC P e L H Figure 11 HDMI Section of PISWVR12612 Demo Board Rev B For clearer view of schematic diagram please click the PDF file icon on the right AN Pericom Semiconductor Corp www pericom com PI3WVR12612_EVB SCHEMATIC revB 8 2 2013
5. gulator U103 PISWVR12612 on the demo board can then be powered up Port selection and AUX DDC selection of PISWVR12612 can be selected via a SPDT switch SW101 Page 2 of 9 DP Input Connector 3V3 DP mor I awa Connectors CEC A SPDT Switch CAB DET A CEC DCH r CAR DEI B 3V3_USB Mini USB 3 3V Regulator Connector DP Output Figure 1 Block Diagram of DP Section on PISWVR12612NEE Demo Board Rev B Pericom Semiconductor Corp 8 2 2013 AN www pericom com LU Be A y PERICOM el nabling Serial Connectivity i C e ti O ote HDMI Input Connector TMDS B HDMI Output Connectors Gesi SPDT Switch Je 0 ve Mini USB 3 3V Regulator Connector Figure 2 Block Diagram of HDMI Section on PISWVR12612NEE Demo Board Rev B 20 38 d9 BELR e D Oms ep weg 7 D tHge me gt Ce ee OFT Eo eg S WOH dO JANLI A BAJ AM ER 38 goth Aal bidde LE es jill Figure 3 Top View of PISWVR12612NEE Demo Board Rev B Pericom Semiconductor Corp Page 3 of 9 AN www pericom com 8 2 2013 Enabling Serial Connectivity 1 PERICOM A licatio d H S a ras m A jj T 5 Figure 4 Layout of PISWVR12612 Demo Board Rev B 3 Quick Start To start up the DP section of PISWVR12612NEE demo board rev B complete the following steps 1 E 3 oe eo ele Close pins 1 and 8 of SPDT switch SW101 open to set OE pin to high Leave p
6. ins 2 and 7 of SPDT switch SW101 open to select Port A of PISWVR21612 at U101 Leave pins 3 and 6 of SPDT switch SW101 open while closing pins 4 and 5 to set DDC_AUX_SEL low which is to enable AUX path and disable DDC path Add jumper to header JP105 for DP evaluation Add jumper to header JP103 to feed the 3 3V power to VDD of PISWVR12612 at U101 Add jumper to header JP101 if using the 3 3V from DP source to power up PISWVR12612 at U101 Supply 5V to demo board from mini USB connector at J104 Plug a source device e g DP motherboard to DP input connector J101 on demo board Connect a sink device e g DP monitor to a DP output connector at J102 or 103 To start up the HDMI section of PISWVR12612NEE demo board rev B complete the following steps 1 2 3 4 5 6 7 8 9 Page 4 of 9 Close pins 1 and 8 of SPDT switch SW101 open to set OE pin to high Leave pins 2 and 7 of SPDT switch SW101 open to select Port A of PISWVR21612 at U104 Close pins 3 and 6 as well as pins 4 and 5 of SPDT switch SW101 to set DDC_AUX_SEL medium which is to enable DDC path Add jumper to header JP106 for HDMI evaluation Add jumper to header JP104 to feed the 3 3V power to VDD of PISWVR12612 at U104 Add jumper to header JP102 if feeding the 5V from HDMI source to 3 3V regulator for powering up PISWVR12612 at U104 Supply 5V to demo board from mini USB connector at J104 Plug a source device e g HDMI motherboard to HDMI input connect
7. or J105 on demo board Connect a sink device e g HDMI monitor to an HDMI output connector at J106 or 107 Pericom Semiconductor Corp 8 2 2013 AN www pericom com Enabling Serial Connectivity f n l 4 Circuit Description 4 1 Port Selection PISWVR12612 offers two control pins for selecting ports for high speed signals HPD and AUX DDC Switches SW101 and SW102 are used to select the control pin settings for PISWVR21612 at U101 for DP evaluation and U104 for HDMI evaluation respectively GPU_SEL DDC AUS SEL DDCG AUS GEI Function Pins 2 and 7 of Pins 3 and 6 of Pins 4 and 5 of SW101 2 SW101 2 SW 101 2 High Short Medium Short Medium Short Table 1 Port Selection of PISWVR12612 Demo Board Rev B For CAD DEI and CEC signal switching using PI5C3257 header JP105 should be shorted for DP port selection while header JP106 should be shorted for HDMI port selection GPU SEL DP ak L HUMI fF Figure 5 Port Selection for PI5C3257 on PISWVR12612 Demo Board Rev B 4 2 3 3V 5V Power Supply Header JP103 is shorted for DP evaluation and header JP104 is shorted for HDMI evaluation External 5V is supplied from the mini USB connector at J104 to provide 5V power for sideband signals connected to and from PI5C3257 at U102 Figure 6 3 3V 5V Power Paths for PISWVR12612 Demo Board Rev B Pericom Semiconductor Corp 8 2 2013 Page 5 of 9 AN www pericom com LA PERICOM Enabling Seria Connectivity
8. tronics Standards Association January 5 2010 2 VESA DisplayPort Dual Mode Standard Version 1 Video Electronics Standards Association February 10 2012 3 VESA DisplayPort Interoperability Guideline Version 1 1a Video Electronics Standards Association February 5 2009 4 High Definition Multimedia Interface Specification Version 1 4 HDMI Licensing LLC June 5 2009 5 High Definition Multimedia Interface Compliance Test Specification Version 1 4a HDMI Licensing LLC 2010 03 04 Pericom Semiconductor Corp Page 7 of 9 AN l 8 2 2013 www pericom com PERICOM Enabling Serial Connectivity Visit digikey com 6 Appendix A Demo Board Schematic Page 8 of 9 DUAL MODE DP INPUT AN At least ipc 4 7uF and 2pc 0 1luF decoupling capacitors are recommended Each decoupling capacitor should be connected to PCB power plane via shortest path PTT DDC_AUX_SEL_DP To a 09909090 3V3_10 ee ee Use DDC paths if DP HDMI DVI adaptor is attached to DP connector J102 3 Use DDC paths if DP HDMI HPD A DP DVI adaptor is attached to DP connector J102 3 VDD and GND pins should be shorted to PCB power planes via shortest paths 3V3 DP Aenm H HPD B DP PISWVR12612NEE DP 1 2 DEMO BOARD SCHEMATIC Figure 10 DP Section of PISWVR12612 Demo Board Rev B Pericom Semiconductor Corp 8 2 2013 www pericom com PERICOM tnabling Serial Connectivity Page 9 of 9 HDMI IN
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