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Added information on the MC68681.

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This commit is contained in:
Joel Sherrill
1998-07-18 15:34:03 +00:00
parent f7d6e57e09
commit cc3d33ac9b
1 changed files with 12 additions and 2 deletions
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14
c/src/lib/libbsp/powerpc/dmv177/cable.doc
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@@ -12,6 +12,18 @@ cables which were plugged into DB-25 or DB-9 adapters wired as described.
Matching the colors of the wires in the shell is the easiest way to Matching the colors of the wires in the shell is the easiest way to
make sure the cable is built properly. make sure the cable is built properly.
The board is configured as follows:
- An MC68681 is the first two serial ports. These are RS-232 and may
be accessed via the front panel or the P2. The front panel connector
has both A and B serial ports on a single connector. DY-4 part number
"OBYC3ASSY901132-000 Rev-" brings these ports out to two DB-25
female connectors.
- The MC68681 serial ports are also accessible on the P2 connector.
DY-4 part number "OBYC3ASSY901080-004 Rev A" brings these out
to DB-9 female connectors. These were not used in this effort.
References References
========== ==========
@@ -19,8 +31,6 @@ References
- http://ahmed.egypt.com/electronics/serial - http://ahmed.egypt.com/electronics/serial
- DY-4 Documentation - DY-4 Documentation
Front Panel RS-232 Connection to a PC Front Panel RS-232 Connection to a PC
===================================== =====================================