sm1350 Nippon Precision Circuits Inc, (NPC), sm1350 Datasheet - Page 16

• Manufacturer Part Number: sm1350
• Description: High Tone Quality Melody Lsi
• Manufacturer: Nippon Precision Circuits Inc, (NPC)

Melodies
Number of melodies
The maximum number of program melodies is 16. Note that is the jump function is used to change the tone or
tempo during melody output, then the maximum number of melodies reduces by the number of times the jump
function was invoked.
Number of program steps
The maximum number of program steps that can be stored in score ROM (notes, rests, jump codes and end
codes) is 1024.
Tempo
The basic quarter note tempo can be set in the range 4.8 to 605.6 in multiples of 4.8.
Note (rest) rhythm values
There are 12 note rhythm values and 13 rest rhythm values that can be used to construct a melody. Also, 2 or
more notes can be combined using ties or slurs.
Table 2. Rhythm values Symbol Note Rest
Symbol
Note
Rest
−
0
3
1
3
3
2
3
3
3
4
SM1350 series
5
3
3
6
7
8
3
3
9
NIPPON PRECISION CIRCUITS INC.—16
A
B
C