BR262PMEVK
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4
APPENDIX A
For your convenience, the prototyping module has many
test points. Signals that are intended to be interfaced to
external devices are provided on through-hole test points.
All of the available test points are summarized in Table 2.
Table 2. BelaSigna R262 PROTOTYPING MODULE TEST POINT DESCRIPTIONS
Test Point Name
Designator
Description
VBAT
+
Main Module Power Supply (1.8 to 3.3 VDC, 20 mA)
SCL
2
I
2
C Clock
SDA
1
I
2
C Data
GND
−
Main Module Ground
AO1
7
Channel 1 Analog Output
AO0
6
Channel 0 Analog Output
GNDA
−
Analog Ground (Internally Connected to GND)
VDDA
Internal 2.0 V Power Supply
VDDD
Digital Power Supply (Internally Generated)
GNDD
−
Digital Ground (Internally Connected to GND)
CLK
8
Optional Input Clock
TP2
Microphone 1 Test Point
VREG
Internal 1.0 V Power Supply
TP1
Microphone 0 Test Point
GP5
5
Optional GPIO Input (SWAP_CHAN)
GP4
4
Optional DMIC Output
TP3
3
Reset
Figure 3. Component Placement Diagram
