Casio CT-X700 Manuel d'utilisateur télécharger pdf (Page 26)

15 Casio General System Exclusive

15.1 Format

Message Format: F0H 44H 7EH 7FH iiH ccH ... ssH ... ppH ... ddH ... F7H

ii: Device ID (0x00...0x7F)

cc ...: Category ID

ss ...: Sub Category ID

pp ...: Parameter ID

dd ...: Data

15.2 Declared Variable Length of Category ID, Sub Category ID and Pa-

rameter ID

Category ID(cc...),Sub Category ID(ss...) and Parameter ID(pp...) is declared variable length.

However, because of System Exclusive, sixth bit instead of seventh bit is a ﬂag representing continue

to the next byte.

For example,

In case of

F0 44 7E 7F ii 00 01 41 02 dd ... F7

represents

Category ID = 0x00, Sub Category ID =0x01, Parameter ID = (0x40 * 1) + 0x02 = 0x42

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 32 33

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Casio CT-X700 Manuel d'utilisateur Page 26