v v m m o o d d m m i i b b ? ? r r e e f f e e r r e e n n c c e e m m a a n n u u a a l l revision: january 5, 2011 1300 ne henley court, suite 3 pullman, wa 99163 (509) 334 6306 voice | (509) 334 6300 fax doc: 502-190 page 1 of 5 copyright digilent, inc. all rights reserved. other product and company names mentioned may be tradema rks of their respective owners. overview the digilent vmod module interface board (vmodmib) is a simple solution for interfacing additional peripheral modules and hdmi devices to vhdci-equipped digilent system boards. features include: ? vhdci peripheral board connector ? four hdmi and five 12-pin pmod? connectors functional description the vmodmib is an expansion board that connects to the vhdci connector on digilent system boards and provides additional pmod and hdmi connections. power connections the vmodmib provides two power busses and a ground bus. the two power busses are labeled vcc and vu. these two busses are made available at each connector position on the board. there is also a ground plane that connects the ground pins from all connectors. the usual digilent convention is to power the vcc bus at 3.3v and the vccfx2 bus at 5.0v. however, depending on the system board connected and the power supply used, other voltages may be present. use caution when using any voltage other than 3.3v on the vcc bus. most digilent system boards will be damaged if the voltage on the vcc bus is greater than 3.3v. 68 pin, vhdci connector vhdci connector j1 is provided on one side of the board for connection to digilent system boards, like the genesys? and atlys?, which contain a vhdci-style connector. the digilent vhdci connector signal convention provides for 40 general-purpose i/o signals. the 40 general-purpose i/o signals from the vhdci connector are brought out to the pmod and hdmi connectors. see table 1 for a description of the relationship between the vhdci connector pins and the signal names, table 2 for the relationship between signal names and pmod pins and table 3 for the relationship between signal names and hdmi pins.
vmodmib reference manual www.digilentinc.com page 2 of 5 copyright digilent, inc. all rights reserved. other product and company names mentioned may be tradema rks of their respective owners. pmod connectors digilent pmods provide various peripheral functions. these can be as simple as buttons or switches for inputs and leds for outputs, or as complex as graphical lcd display panels, accelerometers, and keypads. all digilent pmods use either a 6-wire interface or a 12-wire interface. the 6-wire interface provides four i/o signals, power, and ground. the twelve-wire interface provides 8 i/o signals, two powers, and two grounds. the signal definitions for the i/o signals as well as the voltage requirements for the power supply depend on the specific module. the vmodmib provides five 12-pin pmod connectors. hdmi connectors the vmodmib also provides four hdmi type-d connectors to allow audio/video connections to the system board. they use 19 pins and the relationship between these pins and the signal names from the vhdci connector are described in table 3. each hdmi connector has a jumper which can be used to select a 5v source when shorted. also, data can be sent to the hdmi connectors via an i 2 c bus from signals je1/sda and je2/scl when the jumpers at j2 are shorted. keep in mind that all hdmi ports share signals with pmod ports. ja is shares signals with jaa, jb with jbb, jc with jcc, jd with jdd. all hdmi ports share pins with pmod port je, which contains the i 2 c bus signals.
vmodmib reference manual www.digilentinc.com page 3 of 5 copyright digilent, inc. all rights reserved. other product and company names mentioned may be tradema rks of their respective owners. table 1: vhdci signals and connector pinout j1 1 jc-clk_p 35 jc-clk_n 2 gnd 36 gnd 3 jc-d0_p 37 jc-d0_n 4 jc-d1_p 38 jc-d1_n 5 gnd 39 gnd 6 jc-d2_p 40 jc-d2_n 7 ja-d0_p 41 ja-d0_n 8 gnd 42 gnd 9 ja-d1_p 43 ja-d1_n 10 ja-d2_p 44 ja-d2_n 11 gnd 45 gnd 12 jb-d0_p 46 jb-d0_n 13 jb-d1_p 47 jb-d1_n 14 gnd 48 gnd 15 ja-clk_p 49 ja-clk_n 16 vccb 50 vccb 17 vcc5v0 51 vcc5v0 18 vcc5v0 52 vcc5v0 19 vccb 53 vccb 20 jb-clk_p 54 jb-clk_n 21 gnd 55 gnd 22 jb-d2_p 56 jb-d2_n 23 je8 57 je7 24 gnd 58 gnd 25 je2/scl 59 je1/sda 26 je10 60 je9 27 gnd 61 gnd 28 je4 62 je3 29 jd-clk_p 63 jd-clk_n 30 gnd 64 gnd 31 jd-d0_p 65 jd-d0_n 32 jd-d1_p 66 jd-d1_n 33 gnd 67 gnd 34 jd-d2_p 68 jd-d2_n s1 shield s2 shield
vmodmib reference manual www.digilentinc.com page 4 of 5 copyright digilent, inc. all rights reserved. other product and company names mentioned may be tradema rks of their respective owners. table 2: pmod connector pin layouts ja top set of pins pin pinout 1 ja-d0_n 2 ja-d0_p 3 ja-d2_n 4 ja-d2_p 5 gnd 6 vccb jb top set of pins pin pinout 1 jb-d0_n 2 jb-d0_p 3 jb-d2_n 4 jb-d2_p 5 gnd 6 vccb jc top set of pins pin pinout 1 jc-d0_n 2 jc-d0_p 3 jc-d2_n 4 jc-d2_p 5 gnd 6 vccb jd top set of pins pin pi nout 1 jd-d0_n 2 jd-d0_p 3 jd-d2_n 4 jd-d2_p 5 gnd 6 vccb je top set of pins pin pinout 1 je1/sda 2 je2/scl 3 je3 4 je4 5 gnd 6 vccb note: all signals are connected via a 50 ohm resist or with the exception of the vccb and gnd signals. ja bottom set of pins pin pinout 7 ja-clk_n 8 ja-clk_p 9 ja-d1_n 10 ja-d1_p 11 gnd 12 vccb jb bottom set of pins pin pinout 7 jb-clk_n 8 jb-clk_p 9 jb-d1_n 10 jb-d1_p 11 gnd 12 vccb jc bottom set of pins pin pinout 7 jc-clk_n 8 jc-clk_p 9 jc-d1_n 10 jc-d1_p 11 gnd 12 vccb jd bottom set of pins pin pinout 7 jd-clk_n 8 jd-clk_p 9 jd-d1_n 10 jd-d1_p 11 gnd 12 vccb je bottom set of pins pin pinout 1 je7 2 je8 3 je9 4 je10 5 gnd 6 vccb
vmodmib reference manual www.digilentinc.com page 5 of 5 copyright digilent, inc. all rights reserved. other product and company names mentioned may be tradema rks of their respective owners. table 3: hdmi connector pin layouts jaa pin pinout 1 vcc5v0 2 vccb 3 ja-d2_p 4 gnd 5 ja-d2_n 6 ja-d1_p 7 gnd 8 ja-d1_n 9 ja-d0_p 10 gnd 11 ja-d0_n 12 ja-clk_p 13 gnd 14 ja-clk_n 15 vccb 16 gnd 17 je2/scl 18 je1/sda 19 vcc5v0 jbb pin pinout 1 vcc5v0 2 vccb 3 jb-d2_p 4 gnd 5 jb-d2_n 6 jb-d1_p 7 gnd 8 jb-d1_n 9 jb-d0_p 10 gnd 11 jb-d0_n 12 jb-clk_p 13 gnd 14 jb-clk_n 15 vccb 16 gnd 17 je2/scl 18 je1/sda 19 vcc5v0 note: all signals are connected via a 50 ohm resistor jcc pin pinout 1 vcc5v0 2 vccb 3 jc-d2_p 4 gnd 5 jc-d2_n 6 jc-d1_p 7 gnd 8 jc-d1_n 9 jc-d0_p 10 gnd 11 jc-d0_n 12 jc-clk_p 13 gnd 14 jc-clk_n 15 vccb 16 gnd 17 je2/scl 18 je1/sda 19 vcc5v0 jdd pin pinout 1 vcc5v0 2 vccb 3 jd-d2_p 4 gnd 5 jd-d2_n 6 jd-d1_p 7 gnd 8 jd-d1_n 9 jd-d0_p 10 gnd 11 jd-d0_n 12 jd-clk_p 13 gnd 14 jd-clk_n 15 vccb 16 gnd 17 je2/scl 18 je1/sda 19 vcc5v0
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