Concurrent Technologies VP 110/01 Series, Technical Reference Manual

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1.2.4 SDRAM
The on-board SDRAM operates at 133MHz and features ECC data protection. The board is
fitted with 512 Mbytes of soldered-on SDRAM. A 144-pin SODIMM socket is provided for
memory expansion. This accepts a standard PC133 SDRAM module having a capacity up to
512 Mbytes. Hence a maximum of 1 Gbyte of SDRAM may be fitted to the board.
1.2.5 PCI Busses
There are two on-board PCI busses supported by the CNB30LE North Bridge. The secondary
PCI bus is 64-bits wide and provides a high performance, up to 528 Mbytes/s, connection
between the CNB30LE controller, the PMC sites and PMC expansion carrier board. The
Primary PCI bus is 32-bits wide and provides a lower performance, up to 132 Mbytes/s,
connection between the CNB30LE, PC-AT peripherals, VME bus, and Ethernet controllers.
1.2.6 EPROM
The board contains two 512 Kbyte Flash EPROMs, one for the BIOS firmware and the other for
the factory test (VSA) firmware. The EPROMs have 8-bit data paths and are connected to the
CSB5 X-Bus interface.
1.2.7 Battery Backed SRAM
The board can be fitted with 512 Kbytes to 2 Mbytes of Static RAM. This SRAM is non volatile as
data is automatically retained via on board battery when the board is not powered. The memory
is connected to the CSB5 X-Bus interface and is accessible via two memory windows; a paged
512 Kbyte window and a full 2 Mbyte window. The 512 Kbyte window is shared with the
StrataFlash, both the page and memory type are selected via dedicated registers.
1.2.8 Application Flash EPROM
Intel StrataFlash memory is provided for use by application software, and has capacities from 16
Mbytes to 64 Mbytes. The memory is connected to the CSB5 X-Bus interface and is accessible
via a paged 512 Kbyte window. This window is shared with the battery backed SRAM, the page
and memory type being selected via dedicated registers.
1.2.9 EIDE Controllers
The VP 110/01x has two EIDE/Ultra ATA100 interfaces. One EIDE interface is available via the
P2 connector, the other via an on-board connector for use by the optional on-board disk drive or
CompactFlash
™
module.
1.2.10 USB
A USB 1.0 channel is provided via the P2 interface, and associated Breakout Module.
1.2.11 PMC Interface
Two IEEE P1361.1 standard PMC sites are available supporting 64 or 32-bit operation at 66 or
33MHz. A 3.3V or 5V PCI signaling environment is supported.
The PMC interface will also accept dual function PMC modules and Processor PMC modules.
The latter will operate in non-Monarch modes.
1.2.12 Ethernet Controllers
Two independent Intel 82559ER 10/100 Mbit Ethernet controllers are used to provide high
performance PCI to Ethernet interfaces. Both controllers support 10 and 100 Mbits/s operation.
Those interfaces are made available on RJ45 connectors on the front panel.
1.2.13 VME Interface
The VP 110/01x VME interface is provided by a Tundra
®
Universe II
™
VME to PCI bridge. The
VME interface supports transfers up to 64-bits wide. Hardware Endian swapping is configurable
under software control.
Introduction and Overview
VP 110/01x 1-3