Sysex Basics; General Format; Hex Value Definitions; Procedures - Harman dbx DDP Bedienungsanleitung

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Section 6: Appendices

SysEx basics

General Format:

The general format for the System Exclusive information is as follows (note: all SysEx values are displayed in
Hexadecimal format, along with this symbol (h) for clarification):
Hex Value Definition
F0(h) System Exclusive 'Begin Message' byte
00(h)
01(h) Manufacturer's ID Number (dbx)
1E(h)
0n(h)
n = Unit's Device or SysEx Channel number (minus one) e.g. 01(h) is device or SysEx Ch 1...01(h) is device or
SysEx Ch 2, etc...0F(h) is device or SysEx Ch 16
dd
dd = device ID number 01(h) identifies the DDP
pp
pp = Procedure number. The different procedure's names and general formats are described in the
Procedures Section.
dd(1)1, dd(1)2......dd(n)1, dd(n)2
dd = Data as needed by procedures. Since the standard MMA MIDI Specification reserves 80(h) through FF(h)
(decimal numbers 128 through 255) for specific commands, a split byte format is adopted for all data communica-
tion in this SysEx implementation. dd(n)2 denotes the 1st through 7th bits of the nth byte and dd(n)1 denotes th
8th bit of the nth byte. Note: All data that is requested or received, is in split byte format unless noted otherwise.
F7(h) System Exclusive 'End Message' byte

Procedures

In the following section, SYS_HEAD refers to a valid System Exclusive header. The System Exclusive header starts
with the System Exclusive status byte, and includes all bytes through the dbx device type. F7(h) is the System
Exclusive 'Message End' byte. All SysEx numbers in the format definition of each procedure are given as hexadeci-
mal values, along with this symbol (h). Binary numbers are identified with this symbol (b).
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Request One Setup (02h)
SYS_HEAD, 02(h), yy(1)1, yy(1)2, yy(2)1, yy(2)2, zz1, zz2 F7(h)
When yy = Setup Number: 1-100 (0-63h)
When zz = 6Ch Linked Setup type is selected
When zz = 6Dh Dual Mono Setup type is selected
When a Request One Setup procedure is received, the DDP will respond with a Receive One Setup procedure.
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