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PCI-104 to PC/104 Bridge
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Multifunctional Card For The Cool RoadRunner 4
The S-104P-B2I board is an accessory board for PCI-104 CPU boards like the Cool RoadRunner 4.
It provides all standard legacy I/O devices for the CPU board, like two serial ports, a parallel port and a floppy controller. Its PCI-to-ISA bridge gives the user the possibility to use standard PC/104 I/O boards together with a PCI-104 CPU board.
Furthermore it adds two IEEE 1394 ports, utilizing a VIA6307 FireWire controller.
The serial ports can be configured with software to act as an RS232 or RS485/RS422 interface. The necessary termination resistors in RS485/RS422 mode can be activated with jumpers. The parallel port supports all standard modes SPP, EPP and ECP, respectively. The floppy controller supports one 1.44 MB slim line floppy disk drive, which is connected using a flex foil cable. All standard interfaces are located on 2.54 mm IDC headers. A cable set is
available to provide the standard PC connectors.
The PCI-to-ISA bridge supports all data accesses to I/O or memory devices on the PC/104 bus.
Interrupts and DMA are also supported. The DiskOnChip socket allows to add M-Systems DiskOnChip2000 modules as mass storage device. The DiskOnChip is located in a memory window of the CPU. The address range is
selectable with software.
The programmable Multi-I/O controller is a Xilinx Spartan XC2S15 FPGA device. It is fully connected to the ISA bus and can be programmed from the CPU board. A connector with twenty I/O signals from the FPGA can be used to interface to external hardware. This gives the user the ability to add specialized I/O functions like digital I/O, counters or other custom interfaces to the CPU board.
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