Brainboxes P.S.I. BOX, User Manual

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IEEE Port PSI BOX Reference
Figure 3-1. The IEEE Leds. ________________________
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Talk
³ Ú
Listen
³ ³ Ú
Xmit
³ ³ ³ Ú
Recvr
³ ³ ³ ³ Ú
Centr O/P
³ ³ ³ ³ ³ Ú
Centr I/P
³ ³ ³ ³ ³ ³ Ú
Power On
³ ³ ³ ³ ³ ³ ³
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ÀÄÄÄÄÄÄÄÙ
LED 1, TALK, flashes whenever the IEEE port of the PSI
BOX sends a byte down the IEEE bus. LED 2, LISTEN, flashes
whenever the IEEE port of the PSI BOX accepts a byte from the
IEEE bus, the byte is stored in the PSI BOX internal buffer.
The IEEE DIP Switches. _____________________
DIP switches 1-5 on switch block 1, in conjunction with
the MODE switch 7 & 8, are used to set the all the IEEE
options. These options include IEEE address, IEEE controller
mode and source of the IEEE data.
Figure 3-2. The IEEE DIP Switches. _______________________________
1-4 IEEE Address
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³ ³ ³ ³ Ú
5
IEEE Controller
³ ³ ³ ³ ³
å
on
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³äääääããã³
æ
off
³
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³
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The DIP switches are only read when the PSI BOX is
powered up. Changing the DIP switch setting whilst the PSI
BOX is running will have no effect.
Chapter 3 Page 27