Interphase Tech CONDOR 4221 User Manual Page 15

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Options
3
Options
Interphase Corporation offers the following Condor options:
Dual Channel Ethernet (AUI)
Dual Channel Ethernet (10BaseT)
3 Channel Ethernet (AUI or 10BaseT)
Quad Ethernet Channel (AUI or 10BaseT)
Physical Description
The Condor physically conforms to the 6U VMEbus board standard. The board requires the VMEbus +5 (+/- 5%) volt
supply. The board supports two channels on the main board with the associated channel connectors and up to two
channels on daughter card. The cable connectors for the channels on the daughter cards reside on the daughter cards.
See Appendix A for a detailed list of the Condors physical requirements and specifications.
Functional Description
The Condor as shown in the block diagram (Figure 1-1.) consists primarily of four front-end channels, a VMEbus
Master Interface, a Local Bus (LBUS), a VMEbus Short I/O (slave only) Interface, a CPU Core and a CPU/Local bus
interface.
Each Ethernet Front End Channel (FEC) consists of an Ethernet controller, the associated Ethernet cable connections,
front end circuitry and a small amount of Local Bus interface glue logic. The VMEbus Master Interface consists of a
stand-alone VLSI DMA engine and the associated VMEbus high current driver and receiver devices. The Local Bus
(LBUS) consists of the memory buffer and the associated handshake logic for the bus. The VMEbus Short I/O interface
consists of the handshake and buffer logic for the host system to issue commands to the board. The CPU Core consists
of a CPU with the associated memory and glue logic required to allow the CPU to control the functions of the Condor
board. Finally, the CPU/Local Bus interface consists of the tri-state buffers and handshake logic required to allow the
CPU to access the resources on the LBUS.
Figure 1-1. 4221 Condor Block Diagram
Buffer
SRAM
Ethernet
Channels
Daughter
Card
(Optional)
CPU
Core
Short I/O
Slave
VMEbus
Master
Local Bus
VME/VME64
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