Apple Logic Express 7.2 - Manual (Page 239)

239
B
Ap
pendix
B
Logic
Control—
MIDI
Implementation
The
following
information
is
important
for
software
vendors
who
wish
to
create
a
level
of
software
integration
for
the
Logic/Mackie
Control/XT
units.
This
documentation
covers
firmware
version
V1.0.
Note:
All
numbers
are
in
hexadecimal
format.
Variable
bytes
are
shown
in
italics
and
use
characters
other
than
a-f
as
a
placeholder.
All
channel
messages
use
running
status
messages.
Once
an
initial
3-byte
message
has
been
sent,
the
status
byte
is
dropped
from
proceeding
transmitted
channel
messages,
in
order
to
conserve
bandwidth.
SysEx
Message
Header
The
following
documentation
uses
the
place
holder
“<Hdr>”
whenever
the
SysEx
header
is
transmitted
or
received.
It
has
the
following
form:
F0 MIDI
SysEx
status
byte
00
00
66 Mackie
3-byte
SysEx
manufacturer
ID
ii Model
ID
10 Logic
Control
11 Logic
Control
XT
A
device
ID
is
not
required,
as
each
unit
needs
a
dedicated
MIDI
cable.