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User's Manual l MBa335x UM 0202 l © 2018, TQ-Systems GmbH
Page 49
4.3.6
Buzzer
Illustration 43:
Block diagram buzzer
The MBa335x provides a buzzer to signal acoustic events. The buzzer is directly controlled by a GPIO from the TQMa335x.
Several signals of the TQMa335x are available, which can be selected with an assembly option. TIMER.4 is the default assembly.
See following table for the available signals as well as the required assembly option.
Table 84:
Placement option for buzzer control
Signal
R910
R913
R914
R925
R926
R927
GPIO2.0
0 Ω
NP
NP
NP
NP
NP
TIMER.4 (default assembly)
NP
0 Ω
NP
NP
NP
NP
TIMER.5
NP
NP
0 Ω
NP
NP
NP
TIMER.6
NP
NP
NP
0 Ω
NP
NP
TIMER.7
NP
NP
NP
NP
0 Ω
NP
MCASP0.AXR2
NP
NP
NP
NP
NP
0 Ω
Attention:
Depending on the assembly option the available signals can also be used for other functions.
The configuration should be selected unambiguously.
Illustration 44:
Position of buzzer, N2400
Table 85:
Buzzer, component
Manufacturer / Number
Description
PUI Audio / SMI-1324-TW-5V-2-R
Buzzer, 5 V (typ.), 30 mA (max.)