EKE-Electronics CVB1621A Technical Manual page 54

X4 – DOWNLOAD, TEST AND DEBUG INTERFACE
The X4 interface is located on the circuit board (for further information refer to 2.4 on
page 9). It is used for testing and debugging the module and also to download the latest
firmware.The connector type is a 2x8 pin male header, 2.54mm spacing.
Table A.5: Pin order, connector X4
Pin Signal
1 D_CCLK
2 GND
3 D_FDIN
4 RSATX
5 D_BFGPADONE
6 RSARX
7 D_CDIN
8 RSBTX
9 D_CDEN~
10 RSBRX
11 D_FPGAMODE
12 VCC
13 D_DOUT
14 GND
15
16 <No pin>
The DLOAD interface should be used with original EKE USB Floader with a
FAC1027A adapter.
50
Description
Download, configuration clock, input
Signal ground for RS-232 ports A and B
Download, data in, input
Transmit data, RS-232 port A
Download, Fpga configuration done, output
Receive data, RS-232 port A
Download, configuration data, input
Transmit data, RS-232 port B
Download, configuration data enable, input
Receive data, RS-232 port B
Download, Fpga configuration mode select, input
Supply output, +5V max 50mA
Download, data out, output
Signal ground for download signals
Not Connected
Polarizing key
CVB1621A and CVB 2456A Technical Manual, ver. 3.00