HELIX M FOUR DSP Manual page 42

Unique Features of the HELIX M FOUR DSP
ACO – Advanced 32 Bit CoProcessor
The HELIX M FOUR DSP incorporates an extraor-
dinary powerful 32 Bit CoProcessor of the latest
generation for all monitoring and communication
tasks, both internally and externally. In opposite to
the 8 Bit predecessor generation this MCU achieves
way higher speeds with respect to setup switching
and data communication with our DSP PC-Tool
software. A further significant advantage is the in-
tegrated, native boot loader of the CoProcessor. It
allows software upgrades of all components of the
integrated DSP in order to adjust the microcontrol-
ler-controlled ADEP.3 circuit for example to future
requirements of the diagnostic system of factory
radios or if the device will be extended with addi-
tional interfaces. In addition, thanks to the new flash
memory, the ACO offers 10 memory locations for
sound setups instead of the common two.
Smart highlevel input ADEP.3
Modern, factory-installed car radios incorporate so-
phisticated possibilities of diagnosing the connect-
ed speakers. In particular the latest generation of
car radios are equipped with additional monitoring
functions so that failure messages and loss of spe-
cific features (e.g. fader function) quite often appear
if an amplifier will be hooked up – but not with the
M FOUR DSP.
The new ADEP.3 circuit (Advanced Diagnostics
Error Protection, 3rd Generation), which can be
adapted to the diagnostic mode of the radio, avoids
all these problems without loading the speaker out-
puts of the OE radio during high volumes unneces-
sarily (see page 41, item "ADEP.3 Configuration").
42
Start-Stop capability
The switched power supply of the HELIX
M FOUR DSP assures a constant internal supply
voltage even if the battery's voltage drops to 6 Volts
during engine crank.
Power Save Mode
The Power Save Mode is incorporated in the ba-
sic setup. It allows to significantly reduce the power
consumption of the amplifiers that are connected
to the HELIX M FOUR DSP once there's no input
signal present for more than 60 seconds. Please
note that in many up-to-date cars with "CAN" or any
other internal bus structures it may happen that the
radio remains "invisibly" turned on for up to 45 min.
even after locking and leaving the car! Once the
"Power Save Mode" is active the remote output and
therefore the connected amplifiers will be turned off.
The M FOUR DSP will reactivate the remote output
within a second if a music signal is applied. It is pos-
sible to either modify the turn-off time of 60 sec. or
completely deactivate the "Power Save Mode" via
the DSP PC-Tool software.