2 PCI-6771 User's Manual1.1 IntroductionThe PCI-6771 all-in-one industrial grade PCI-bus CPU card usesIntel’s highly acclaimed Celeron® processor, together with theIntel 440BX PCI chipset.The CPU provides 128 KB on-CPU L2 cache, eliminating theneed for external SRAM chips. It has one PCI EIDE interface forup to two devices and a floppy disk drive interface for up to twodevices. Other features include two RS-232 serial ports (16C550UARTs with 16-byte FIFO or compatible), one enhanced parallelport (supports SPP/EPP/ECP) and one USB (Universal Serial Bus)port. The PCI enhanced IDE controller supports Ultra DMA/33and PIO Mode 4 operation. This provides data transfer rates ofover 33 MB/sec. System Bios supports boot-up from an IDE CD-ROM, SCSI CD-ROM and LS-120.A backup of CMOS data is stored in the Flash memory, whichprotects data even after a battery failure. Also included is a 62-level Watchdog timer which resets the CPU or generates aninterrupt if a program cannot be executed normally. This enablesreliable operation in unattended environments.The PCI-6771 offers several impressive industrial features such asVGA (AGP) controller, two SODIMM slots for a total of 256 MBRAM memory and a 10/100Base-T networking controller. Inaddition, the PCI-6771 series supports a solid state disk (SSD)using a CompactFlash™ disk that is not as vulnerable to thehazards of an industrial computing environment. These featuresmake it an ideal choice for applications that require both highperformance and full functionality.