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Atlys Reference Manual

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VHDC Connector Pinout

IO1-P:

U16 IO1-N:

V16 IO11-P:

U10 IO11-N:

V10

IO2-P:

U15 IO2-N:

V15 IO12-P:

R8 IO12-N:

IO3-P:

U13 IO3-N:

V13 IO13-P:

M8 IO13-N:

IO4-P:

M11 IO4-N:

N11 IO14-P:

U8 IO14-N:

IO5-P:

R11 IO5-N:

T11 IO15-P:

U7 IO15-N:

IO6-P:

T12 IO6-N:

V12 IO16-P:

N7 IO16-N:

IO7-P:

N10 IO7-N:

P11 IO17-P:

T6 IO17-N:

IO8-P:

M10 IO8-N:

N9 IO18-P:

R7 IO18-N:

IO9-P:

U11 IO9-N:

V11 IO19-P:

N6 IO19-N:

IO10-P:

R10 IO10-N:

T10 IO20-P:

U5 IO20-N:

The Pmod connector is a 2x6 right-angle, 100-mil female connector that mates with standard 2x6 pin

headers available from a variety of catalog distributors. The 12-pin Pmod connector provides two VCC

signals (pins 6 and 12), two Ground signals (pins 5 and 11), and eight logic signals. VCC and Ground

pins can deliver up to 1A of current. Jumper JP12 selects the Pmod Vcc voltage (3.3V or 2.5V) in

addition to selecting the VHDC voltage. Pmod data signals are not matched pairs, and they are routed

using best-available tracks without impedance control or delay matching.

On the Atlys board, the eight Pmod signals are shared with eight data signals routed to an HDMI type

D connector. The HDMI connector, located immediately beneath the Pmod connector on the reverse

side of the board, includes an I2C bus and conforms to the HDMI type D pinout specification, so it can

be used as a secondary HDMI output port. A type D to type A HDMI cable may be required, and is

available from Digilent and a variety of suppliers.

Pmod

Pinout

HDMI Type D Pinout

JA1:

T3 D0+:

R3 SCL:

C13

JA2:

R3 D0-:

T3 SDA:

A13

JA3:

P6 D1+:

T4 CEC:

Vcc

JA4:

N5 D1-:

RES:

Vcc

JA7:

D2+:

N5 HPD:

JA8:

T9 D2-:

P6 DDC:

GND

JA9:

CLK+:

JA10:

T4 CLK-: