diff options
author | 2017-06-04 04:01:22 -0400 | |
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committer | 2017-06-04 04:01:22 -0400 | |
commit | e3fa1b874ec1b16d65a9ccdf79c6ffb2598f9a30 (patch) | |
tree | 5e53e48aab681588a30ece4e57af124edf1c4650 /src/devices/sound/ay8910.cpp | |
parent | d00079702a90a5316de199e82042cca53035bd47 (diff) |
various comment updates (nw)
Diffstat (limited to 'src/devices/sound/ay8910.cpp')
-rw-r--r-- | src/devices/sound/ay8910.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/devices/sound/ay8910.cpp b/src/devices/sound/ay8910.cpp index 78847be413a..4177dc8aec7 100644 --- a/src/devices/sound/ay8910.cpp +++ b/src/devices/sound/ay8910.cpp @@ -398,8 +398,8 @@ AY-3-8914/A: 2 I/O ports AY-3-8914A die is unknown. AY-3-8916: 2 I/O ports A7 thru A4 enable state for selecting a register can be changed with a - factory mask adjustment but was 1111 for the part shipped with the - Intellivision ECS module. + factory mask adjustment; its mask is unknown. This chip was shipped + with certain later Intellivision II systems. Pins 24, 25, and 26 are /A9, /A8(!), and TEST2, which are an active low, low(!) and high chip enable, respectively. NOTE: the /A8 enable polarity may be mixed up with AY-3-8917 below. |