Chapter 2: MasterBlaster Serial/USB Communications Cable Data Sheet
2–3
Functional Description
MasterBlaster Connections
The MasterBlaster cable connects to a computer through a serial or USB port and
connects to the circuit board through a standard 10-pin female connector. Data is
downloaded from the serial or USB port through the MasterBlaster cable to the circuit
board through the connections discussed in this section.
Header & Plug Connections
The 9-pin male D-type connector connects to an RS-232 port with a standard serial
cable. See Table 2–1 .
1
The USB connector can be used with any standard USB cable.
Table 2–1. MasterBlaster 9-Pin Serial D-Type Connector Pin-Outs
Pin
2
3
4
5
6
7
8
Signal Name
rx
tx
dtr
GND
dsr
rts
cts
Description
Receive data
Transmit data
Data terminal ready
Signal ground
Data set ready
Request to send
Clear to send
f
For more information on 9-pin versus 25-pin serial connectors, search for “9-pin or 25-
pin serial connectors” in the Altera solutions database at www.altera.com .
The 10-pin female plug connects to a 10-pin male header on the circuit board
containing the target device(s). Figure 2–2 shows the dimensions of the female plug.
? July 2008
Altera Corporation
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