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GPIO Pushbuttons (
The GPIO pushbuttons are connected to the processor's signals
respectively. These pushbuttons are enabled through S706 dip switch which can enable or disable each connection
to the processor
Table 3-1:
Pushbutton Enable Switch – S706
Position
1
2
3
4
5
6
)
SW A to E
Figure 7: Push button circuit connections to ADSP-CM419
Pushbutton
SW1
SW2
SW3
SW4
SW5
NA
PF_08, PA_00, PA_01
Processor Signal
PF_08/SPI1_SEL7/LBA_PIN5/SYS_DSWAKE2
PA_00/SPI0_SEL2/TM0_CLK/SPI0_SS
PA_01/SPI0_SEL3/SPI0_RDY/TM0_ACI2
PE_14/TM1_TMR0/SMC0_A05
PE_15/TM1_TMR1/SMC0_A10
Not Used
21
,
and
PE_14
PE_15
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