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Functional Description
CP321
Page 2 - 4
© 2003 Kontron Modular Computers GmbH
ID 24977, Rev. 02
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PCI bus arbitration unit (five request/grant pairs)
PCI agent mode capability:
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address translation unit
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internal configuration registers accessible from PCI
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two-channel integrated DMA controller
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supports direct mode or chaining mode (automatic linking of DMA transfers)
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supports scatter gathering - read or write discontinuous memory
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interrupt on completed segment, chain, and error
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local-to-local memory
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PCI-to-PCI memory
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PCI-to-local memory
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local-to-PCI memory
Message Unit:
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I²O message controller
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two door-bell registers
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in-bound and out-bound messaging registers
Embedded Programmable Interrupt Controller (EPIC):
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five hardware interrupts (IRQs) or 16 serial interrupts
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four programmable timers
Programmable Memory and PCI Bus Output Drivers
Debug Features:
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watchpoint monitor
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address attribute and PCI attribute signals
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JTAG/COP - common onboard processor for in-circuit hardware debugging
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performance monitor
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