FEDL2215-01
Semiconductor
ML2215
1
(3) End-Bit
The end-bit is set at the first byte, the MSB, of music phrase data. As soon as the LSI starts to output the last note
code where the end-bit is set to “1”, the Music Generator circuit issues an end-music interrupt call and stops
playback after the last note code has been output.
8.3 Sample Musical Note Codes
Table 8.6 shows sample codes to output a part of musical score shown in Figure 8.3.
=120
Figure 8.3
Table 8.6 Coding Sample
Note Code
1st Byte
2nd Byte
Musical
Note
Hexa-
decimal
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
END —* L5 L4 L3 L2 L1 L0 N7 N6 N5 N4 N3 N2 N1 N0
G2
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
1
0
0
1
0
1
0
1
1
1
1
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
0
1
1
0
1
0
1
0
0
1
0
0
0
0
0
0
1
1
0
0
1
0
1
0
1
1
0
0
1
0
1
0
1
1
0
2F50H
0F6BH
1750H
076BH
1750H
0747H
3F3FH
BF50H
D2
G2
D2
G2
A2
B2
G2
Note: * Bit 6 of the first byte can be either “0” or “1” (Don’t care bit), so is set to “0” in the above sample
codes.
20/26
OKI [ OKI ELECTRONIC COMPONETS ]
