CP321
Introduction
ID 24977, Rev. 02
© 2003 Kontron Modular Computers GmbH
Page 1 - 5
1.3
Board Overview
1.3.1
Board Introduction
The CP321 is a 3U CPCI CPU board featuring a powerful CPU (number cruncher). The design
is based on the new highly integrated Motorola PowerPC processor MPC8245, which inte-
grates a PCI interface and various peripherals inside one Chip.
Standard memory configurations of up to 256 MB of SDRAM are available. Flash memory for
integrating the initial bootloader and ROMable operating systems are provided . Additionally,
NVSRAM and Disk On Chip (by M-Systems) can be placed on two DIL sockets for memory ex-
pansion purposes.
The CP321 is also able to communicate with the environment through a Fast Ethernet interface
and two serial interfaces at the front side of the board. One of the serial interfaces is a RS232
full modem interface while the other is replaceable with a RS232/RS485 port. These UARTS
support baud rates up to 1.5 Mbps and are software compatible with the 16550 UART from Na-
tional Semiconductor. They contain 128 Byte Transmit and 128 Byte Receive FIFO’s for in-
creasing the CPU availability for other operations.
The Ethernet is realized with the Intel 82559ER with full duplex support at both 10/100 Mbps
possible. This Fast Ethernet controller with an integrated 10/100 Mbps physical layer device is
the foremost solution for PCI board LAN designs. It combines low power consumption with a
small package design which is ideal for power and space constrained environments.
Anticipating the CP321's use in data critical applications, the memory data path contains a se-
lectable in-line ECC controller which can provide SDRAM single-bit error correct or double-bit
error detect.
For mass data transmission a dual channel DMA controller is provided. It can be programmed
directly or through the use of descriptor chains located in memory. Data can thus be moved
from PCI to memory or vice versa, memory to memory, or PCI to PCI.
The MPC8245 supports processor control and visibility through the JTAG/COP (common on-
chip processor) interface that is available on the CP321. Utilizing third party tools, the develop-
er can access and control the processor. It also has standard IEEE 1149.1a-1993 compliant
boundary scan capability.
Utilizing the local on-board PCI expansion connector, the CP321 supports up to 2 mezzanine
modules. Currently there is a carrier board available for PMC modules, the CP320-IO1, which
can carry a single PMC module. Given the wide range of PMC modules now available, this fea-
ture affords the user a very wide range of options with the possibility of low-cost system expan-
sion without an additional PCI bridge or using the expansion capability of the backplane for
ruggedized design applications such as the field of transportation.
Used as the system controller in a normal CPCI system, the CP321 supports the full range of
expansion capabilities as provided via the external CPCI bus.
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