Akai MPC 5000 Reference Manual page 144

Up to three octaves up or down can be set. For example, if the Arpeggiator is set to an 'up' pattern, and you have the 'Octave' field set to 1, if you
held down the notes C3, E3 and G3, the arpeggiator would play the following repeating pattern:
C3, E3, G3, C4, E4, G4
The original octave is always played first. To illustrate this, building on the example above, if the pattern was set to 'down', then the following
pattern would play:
G3, E3, C3, G4, E4, C4
The following steps are available.
1/8, 1/8(3), 1/16, 1/16(3), 1/32, 1/32(3), 1/64, 1/64(3)
This parameter determines how long each note will play, represented by a percentage of the 'Step' time.
set to 16th notes, and 'Gate' is set to 50%, each note will be played for half the length of a 16th note.
The following options are available.
The Arpeggiator will play the notes in order ascending or descending, depending on the 'Arp Pattern'.
The Arpeggiator will play the notes in the order they were played.
Like Timing Correct, this will delay certain notes of the Arpeggiator pattern to create a shuffled feel.
This allows the velocity of each note played by the Arpeggiator to have their velocities set to anywhere from 1-127, or set to the velocity they were
played.
This will turn on the Latch function of the Arpeggiator.
For example, if you press and release the following keys: C3, E3, G3
These notes will continue to play after they are released.
Pressing another key, D4 for example, would stop the previous 3 notes and start playing D4 only.
These will now play again in place of D4
For example, if C3, E3, and G3 are playing, and you press these three keys again along with D4, all four would now play.
In other words, if 'Step' is