FEDL 2213-01

1Semiconductor

ML2213

19/26

Table 7.4 Musical Notes and Corresponding Note Codes

Note Code

Musical Note

L5

L4

L3

L2

L1

L0

L5 to L0

11111

1

3FH

10111

1

2FH

01111

1

1FH

01011

1

17H

00111

1

0FH

00101

1

0BH

00011

1

07H

00010

1

05H

When N6 to N0 are set to “0” in scale code definition, the code means “Rest”. Table 7.5 shows rests and their

corresponding rest codes (L5 to L0).

Table 7.5 Rests and Corresponding Rest Codes

Rest Code

Rest

L5

L4

L3

L2

L1

L0

L5 to L0

11

1

1

1

1

3FH

01

1

1

1

1

1FH

01

0

1

1

1

17H

00

1

1

1

1

0FH

00

0

1

1

1

07H

00

0

0

1

1

03H

The following formula can be used to calculate the duration or beat of a musical note (including rest), that is

defined by a note code and tempo code.

1.5

× (TP+1) × (L+1) msec (Where TP is integer between 1 to 31, and L is integer between 4 to 63)

TP is a numerical value defined in the Phrase Control Table and its bit correspondence to tempo data can be

calculated as follows:

TP = 2

Meanwhile, L is defined by a musical note code, and its bit correspondence to the musical note code can be

calculated as follows:

L = 2