Xilinx UG078 6d. Downstream Interface Connector, Prototyping Area, VCCO-Enable Supply Jumpers

Detailed Description

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6d. Downstream Interface Connector

The downstream interface connector, as shown in Figure 7, passes serial configuration information to the DUT in the downstream prototype platform board.

NC PROG INIT NC NC NC NC TCK TDO

DOWNSTREAM_TDI TMS

GND

NC

NC

GND

GND

GND

GND

GND

GND

GND

NC

B22

B21

B20

B19

B18

B17

B16

B15

B14

B13

B12

B11

B10

B9

B8

B7

B6

B5

B4

B3

B2

B1

A22

A21

A20

A19

A18

A17

A16

A15

A14

A13

A12

A11

A10

A9

A8

A7

A6

A5

A4

A3

A2

A1

NC

CLK

DONE

NC

NC

NC

NC

NC

NC

NC

DOUT_BUSY

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

UG027_07_051004

Figure 7: Downstream Interface Connector (44-Pin Male)

7. Prototyping Area

The prototyping area accommodates 0.10-inch spaced ICs. The kit contains headers that can be soldered to the breakout area, if desired. Power and ground buses are located at the top and bottom edges, respectively, of the prototyping area.

8. VCCO-Enable Supply Jumpers

Virtex-4 series devices have 9 to 17 SelectIO banks, labeled 0 through 16, each with a VCCO-enable supply jumper. The VCCO-enable supply jumpers can connect each bank to one of the two onboard supplies, VCCINT or the VCCO supply. These jumpers must be installed for the Virtex-4 device to function normally.

9. VBATT

An onboard battery holder is connected to the VBATT pin of the DUT. If an external power supply is used, the associated jumper must be removed and instead use a 12 mm lithium coin battery (3V).

16	www.xilinx.com	Virtex-4 LX/SX Prototype Platform
		UG078 (v1.2) May 24, 2006