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NOTE:
Each time a preset is recalled, it is first loaded into a RAM buffer that we call the Edit Buffer
(could also be called “current preset”). If another preset is recalled, the Edit Buffer is erased, so any
changes will be lost unless stored to a User location (or externally). In the table below, we refer to
this preset location as the “EdBuf.”
CMD Number (in HEX) / Name <data> description
Resulting Action
00 / PFC4 Online
None
Amp sends PFC4 Setup data
01 / PFC4 Switch Press
Footswitch #, 0-5
Amp responds based on mode
02 / Version Request
None
Amp sends message 03
03 / Version of Software
Version #, 00-7F
Amp ignores if received
04 / Send Presets
None
Amp sends message 05
05 / Receive Presets
Preset data, nibbleized *
Amp saves presets in User slots
06 / Send Single Preset
Preset # (00 - 0F)
Amp sends message 09 ****
07 / Receive Single Preset
Preset #, preset nibs *
Amp saves preset to User slot
08 / Send EdBuf
None
Amp sends message 09
09 / Receive EdBuf
Preset nibbles *
Amp loads and activates EdBuf
0A / Store EdBuf
Preset #
Amp stores EdBuf to User preset
0B / Send EdBuf Byte
EdBuf address (00 - 1E)
Amp sends message 0C
0C / Receive EdBuf Byte
EdBuf address, value nibs *
Amp activates EdBuf parameter
0D / Send EdBuf Partial Byte
Partial address **
Amp sends message 0E
0E / Receive EdBuf Partial Byte Partial address, partial value **
Amp activates EdBuf parameter
0F / Send EdBuf Current
Primary address ***
Amp sends message 10
10 / Receive EdBuf Current
Primary address, current value ***Amp activates EdBuf parameter
11 / <reserved>
12 / Send Globals
None
Amp sends message 13
13 / Receive Globals
14 Global Bytes, nibbleized *
Amp saves and activates globals
14 / Send Global Partial Byte
Partial address, 00-0D **
Amp sends message 15
15 / Receive Global Partial Byte
Partial address, partial value **
Saves and activates global in amp
*
Nibblized data is sent hi nibble, then low nibble. For example, a hex byte value of 74 will be
sent as two bytes: 07 04. This is because MIDI data bytes really only have seven bits - the
most significant is reserved to be set for status bytes only.
**
Partial addressing is a way of programming a portion of an EdBuf byte, while not disturbing
the other bits in that byte. A Partial address is made up of three bytes. The first is the byte
address of the preset byte you are targeting (00-1E). The second byte is the bit number you
want to start writing at (0 for least significant, seven for most significant). The third byte
defines how many bits you want to program. The next byte will be the value, and since it is a
partial, it does not need to be nibbleized. For example, to set the Delay Rolloff bit, send the
following string:
F0 00 00 1B 10 00 0E 1D 07 01 01 F7
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Содержание Transtube Transformer 112
Страница 1: ...Transformer 112 212 Transtube Series Transformer 112 212 Transtube Series O p e r a t i n g G u i d e ...
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