diff options
Diffstat (limited to 'decoders/mcs48')
| -rw-r--r-- | decoders/mcs48/__init__.py | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/decoders/mcs48/__init__.py b/decoders/mcs48/__init__.py index 54c01cc..b989a2a 100644 --- a/decoders/mcs48/__init__.py +++ b/decoders/mcs48/__init__.py @@ -19,8 +19,11 @@ ''' This protocol decoder de-multiplexes Intel MCS-48 (8039, 8048, etc.) external -program memory accesses. This requires 14 channels: 8 for D0-D7 (data and -lower 8 bits of address), 4 for A8-A11 (output on port P2), ALE and PSEN. +program memory accesses. + +This requires 14 channels: 8 for D0-D7 (data and lower 8 bits of address), +4 for A8-A11 (output on port P2), ALE and PSEN. + An optional A12 is supported, which may be an arbitrary I/O pin driven by software (use case is dumping ROM of an HP 3478A). ''' |