ADLINK PCM-9112+ - Manual

1
Appendix for PC/104- plus modules
Manual Rev. 1.03: September 19, 2002 Part No: 50-40035-200
1 Introduction
1.1 Introduction of PC/104-plus
PC/104-plus is a special bus architecture designed for embedded systems. A third connector
opposite the PC/104 connectors supports the PCI bus. Basically the electrical specifications of the
PC/104-plus bus are compliant with the PCI signals, except 64-bit extensions, JTAG, PRSNT or
CLKRUN signals. The mechanical specifications are changed to “module stack”; please refer to the
figure shown below. According to the specifications of PC/104-plus, PC/104-plus modules are
installed and configured by switching CLK, IDSEL, INT, REQ and GNT signals through multiplexers
to the appropriate connections.
.
Figure 1: PC/104-plus module stack
Rotary switch on PCM-9112+ is used for these signals switching, please refer to section 2.4 for
details in this appendix.
1.2 Specifications for PCM-9112+
The specifications of the PCM-9112+ are the same as that of the PCI-9112 except for the Digital
Input and Digital Output functions have been removed from the PCM-9112+. To compensate for
the removal of the DI/DO functions, the AD FIFO has been enlarged to 512 words allowing it to
handle a wider range of applications. Please refer to section 1.3 of the PCI-9112 manual for further
details.
1.3 Supported Software
The supported software is the same as that of the PCI-9112 without the DI/DO functions. Please
refer to section 1.4 of the PCI-9112 manual for further details.
PC/104+ Module Slot 2
PC/104+ Module Slot 1
PC/104+ Host
PC/104+ Module Slot 3
PC/104+ Module Slot 4