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CHAPTER 1
GENERAL INFORMATION
1.1
INTRODUCTION
The iSBC 548, iSBC 547 and iSBC 546 are three single board terminal
controllers to be used in the MULTIBUS I environment. The iSBC 548
and iSBC 547 are eight channel controllers. The iSBC 546 has four
channels plus a line printer i.nterface and clock/ca.lendar.
The purpose of this chapter is to introduce you to all three
boards.
The remaining chapters will provide more detailed
information on all the boards. This chapter gives a. list of the key
features, a brief description of each board and a list of
specifications.
1.2
BOARD FEATURES
This section provides a brief list of key features of the iSBC 548
and iSBC 547 boards.
o
Eight Mhz 80186 Microprocessors.
o
Supports asynchronous RS232C interface in DTE
configuration,on eight channels.
o
32K Byte dual-ported
B~,
96K Byte local RAM and supports
up to 64K Byte EPROM sites populated with :i:irmware (All
Boards)
o
Each serial channel supports transfer rates up to 19.2K
Baud.
0
Up to 96K Baud (per board) throughput rate (Special
Character or Tandem Mode not used)
0
Jumper selectable memory mapping
0
Jumper selectable I/O mapping
0
Jumper selectable MUL'l'IBUS interrupts
1-1
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