Specifications

Product Description
EPC-100 Hardware Reference
1-4
Standard front panel PC peripheral interfaces with standard interface connectors
include:
•
two RS232 serial ports
•
a bi-directional IEEE 1284 ECP/EPP parallel port
•
two USB ports
•
a fast SCSI-II controller with front panel interface
•
10/100BaseTX and 10BASE2 Ethernet ports
•
PS/2 style mouse and keyboard connectors
Additional features include:
•
SVGA interface. This PCIbus interface is based on the Cirrus Logic
CL-GD5446 chip, with up to 4MB of video RAM providing local bus graphics
performance and resolutions up to 1280x1024, with 64K colors. The standard
15-pin connector for this port is enhanced with a programmable output on pin
15, which is not connected on a standard VGA interface.
•
10BASE2 and 10/100Base-TX Ethernet interfaces. The interface is based on the
Digital 21143 Ethernet controller. Interface configuration (Emulation mode and
address/interrupt control) is software controlled.
•
A watchdog timer. This device can be configured to generate an IRQ9 interrupt
and either halt or perform a warm reboot of the processor, depending on a BIOS
setup option. The timer is implemented as a software-retriggerable one-shot,
with a programmable reset interval ranging from 128 ms to 8.2 sec.
•
Optional on-board 2.5" ATA hard drive.
cPCI bus
The cPCI bus is accessed from the EPC-100’s PCI bus via a DEC 21150 PCI-PCI
bridge. This bridge connects the onboard PCI bus (bus 0) with the mainframe’s cPCI
bus (bus 1), which may have as many as seven additional cPCI devices connected to
it. This is described in the following sections covering the system controller functions
and the interface to cPCI devices.
The cPCI standard was developed by a consortium of manufacturers known as the
PCI Industrial Computer Manufacturers Group (PICMG). For further information