Dave Smith Instruments PRO 2 - Manual (Page 119)

109 Pro 2 Operation Manual Appendix D: MIDI Implementation
NRPN Value Description
320 0-1 Arpeggiator
0 = Off
1 = On
321 0-4 Arpeggiator Mode
0 = Up
1 = Down
2 = Up/Down
3 = Assign
4 = Random
322 0-2 Arpeggiator Range
0 = 1 Octave
1 = 2 Octaves
2 = 3 Octaves
323 0-10 Arp Clock Divide
0 = half
1 = quarter
2 = eighth
3 = eighth, half swing
4 = eighth, full swing
5 = eighth triplet
6 = sixteenth
7 = sixteenth, half swing
8 = sixteenth, full swing
9 = sixteenth triplet
10 = thirty-second
324 0-3 Arpeggiator Repeats
325 0-1 Arpeggiator Auto Latch
0 = Off
1 = On