diff options
authorJoel Sherrill <>1998-07-18 15:34:03 +0000
committerJoel Sherrill <>1998-07-18 15:34:03 +0000
commitcc3d33ac9b4b73b03efb5774512822ac5c9ca1a1 (patch)
parentf7d6e57e09d38525653a2f3b5c1cda6dd4cb59c1 (diff)
Added information on the MC68681.
1 files changed, 12 insertions, 2 deletions
diff --git a/c/src/lib/libbsp/powerpc/dmv177/cable.doc b/c/src/lib/libbsp/powerpc/dmv177/cable.doc
index 21215d3ad5..1c958d696a 100644
--- a/c/src/lib/libbsp/powerpc/dmv177/cable.doc
+++ b/c/src/lib/libbsp/powerpc/dmv177/cable.doc
@@ -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
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.
@@ -19,8 +31,6 @@ References
- DY-4 Documentation
Front Panel RS-232 Connection to a PC