UM-PM-029
DA9213, DA9214, and DA9215 Performance
Boards
User Manual
Revision 2.0
25-Feb-2022
CFR0012
30 of 37
© 2022 Renesas Electronics
Appendix B - Performance Board Features
DA9214 Performance Board (227-04-D) is used in this section as an example. DA9213 and DA9215
Performance Boards (227-02-A and 227-07-B) have the same features.
B.1
USB-I
2
C Bridge
The USB-I
2
C bridge is mainly used for two purposes:
1. As a source of I
2
C and SPI control signals.
2. To provide the discrete signals for the GPIOs.
The USB-I
2
C bridge is powered via the USB cable via a fixed 3.3 V regulator.
Jumpers J31 and J32 on 227-04-D are used to select between I
2
C and SPI communication to
DA9214. This has to be configured with the IF_TYPE field of INTERFACE2 register.
Figure 20: ATSAM3U µ-Controller for USB-I
2
C bridge
B.2
I/O and Supply Regulators
The external LDO regulators on the DA9214 Performance Board are used to generate power supply
for the ATSAM3U and the I/O voltage needed by the device.
A voltage of 3.3 V or 1.8 V can be selected as supply for the I/O 9 (see jumper link J39).
