User Guide

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
DigiTech device type. F7
(h) is the System Exclusive ‘Message End’ byte. All SysEx numbers in
the format definition of each procedure are given as hexadecimal values along with this symbol
(h) for clarification. Binary numbers are identified with this symbol (b).
REQUEST CONFIGURATION ADDRESS (00h)
SYS_HEAD, 00(h), F7(h)
When a Request Configuration Address procedure is received, the DigiTech device
will respond with a Receive Configuration Address procedure.
RECEIVE CONFIGURA
TION ADDRESS (41h)
SYS_HEAD 41(h),ww, xx, yy, zz, F7(h)
ww 0000000v(b) where v is bit 7 of the ram address.
xx 0vvvvvvv
(b) where v is bits 6 - 0 of the ram address.
yy 0000000v
(b)
where v is bit 15 of the ram address.
zz 0vvvvvvv(b) where v is bits 14 - 8 of the ram address.
The Receive Configuration Address procedure is sent in response to a Request
Configuration Address prodcedure. This address can be used with the Request RAM
Area procedudre to directly access the RAM used for configuring the DigiTech device
(implemented mainly for in-house programming).
REQ
UEST ONE PROGRAM (01h)
SYS_HEAD, 01
(h), yy, zz, F7(h)
When yy = 00(h), then zz = Program numbers 1 through 128 (00-7Fh)
When yy = 01(h), then zz = Program numbers 129 through 256 (00-7Fh)
When a Request One Program procedure is received, the DigiTech device will respond
with a Receive One Program procedure.
DigiTech S-DISC™ SysEx
Procedures
5
5
Procedures
DigiTech S-DISC™ SysEx