2192-12132-000-000
Required null modem cable pin out:
9 Way D-Sub (Female)
9 Way D-Sub (Female)
2
3
3
2
5
5
Using the CompactFlash™ Socket
The VIPER is fitted with a Type II CompactFlash socket mounted on the topside of the board.
This socket is connected to Slot 0 of the PXA255 PC Card interface. The socket supports both
Type I and Type II CompactFlash cards, for both memory and IO. The VIPER supports hot
swap changeover of the cards and notification of card insertion.
The CompactFlash card can only be inserted into the socket one way. The correct orientation is
for the top of the card i.e. the normal printed side to be face down to the PCB.
RedBoot does not support the CompactFlash interface, so a suitable operating system such as
Arcom Embedded Linux (AEL) port or Windows CE .NET, will need to be installed to support
this function.
Using the Serial Interfaces (RS232)
The five serial port interfaces on the VIPER are fully 16550 compatible. Connection to the serial
ports is made via a 40-way boxed header. The pin assignment of these headers has been
arranged to enable a 9-way IDC D-Sub plug to be connected directly to the cable. The D-Sub
connector will be compatible with the standard 9-way connector on a desktop computer. A
suitable cable is provided as part of the Development Kit.
Using the Audio Features
There are four audio interfaces supported on the VIPER, Amp out, Line out, Line in and
Microphone. The Line In, Line Out and Amp interfaces support stereo signals and the
Microphone provides a Mono input. The amplified output is suitable for direct drive of any 4-8
Ω
load with a maximum power output of 2mW per channel. Connections are routed to a 12-way
header PL6. The relevant signals for each interface are shown in the table below:
Function
Pin No.
Signal
9 MIC
Microphone
7
Audio ground reference.
1
Line input Left
5
Line input Right
Line IN
3
Audio ground reference
2
Line output Left
6
Line output Right
Line OUT
4
Audio ground reference
Amp OUT
8
Amp output Left
12
Amp output Right
10
Audio ground reference
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