User guide

Chapter 3: EthernetBlaster II Communications Cable Specifications 3–3
EthernetBlaster II Hardware Connections
January 2014 Altera Corporation EthernetBlaster II Communications Cable User Guide
1 The circuit board must supply V
CC(TARGET)
and ground to the EthernetBlaster II cable
for the I/O drivers.
Circuit Board Header Connection
The circuit board’s 10-pin male header, which connects to the EthernetBlaster II
cable’s 10-pin female plug, has two rows of five pins. These pins are connected to the
device’s programming or configuration pins. Figure 3–3 shows the dimensions of a
typical 10-pin male header.
1 Although you can use a 10-pin surface mount header for the Joint Test Action Group
(JTAG), active serial (AS), or passive serial (PS) download cable, Altera recommends
using a through-hole connector because of the repeated insertion and removal force
needed.
6 nCE
Cyclone chip
enable
— No connect — No connect
7
DATAOUT
Active serial data
out
nSTATUS
Configuration
status
— No connect
8
nCS
Serial
configuration
device chip select
— No connect — No connect
9
ASDI
Active serial data
in
DATA0 Data to device TDI Data to device
10
GND Signal ground GND Signal ground GND Signal ground
Table 3–2. EthernetBlaster Female Plug Signal Names and Programming Modes (Part 2 of 2)
Pin
AS Mode PS Mode JTAG Mode
Signal Name Description Signal Name Description Signal Name Description
Figure 3–3. 10-Pin Male Header Dimensions
o
0.025 Sq
.
0.235
0.100
0.100
Dimensions are shown in inches.
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