ON Semiconductor
www.onsemi.com
15
3.8 D
IGITAL INPUT/OUTPUT (DIO)
RSL10 contains 16 digital I/O (DIO) signals. The DIO voltage domain is VDDO, while the input voltage can be
VBAT or external voltage as outlined in Section 3.6, “Measuring the Current Consumption” on page 14.
The DIO signals on RSL10 are multiplexed with several interfaces, including:
•One I
2
C interface (on DIO [7:8] for QFN)
• Four external inputs to the low-speed analog to digital converters (on
DIO [0:3] for QFN)
• One PCM interface
• Two PWM drivers
• Two SPI interfaces (on
DIO [9:12] and DIO [13:15] for QFN)
• One UART interface (on
DIO [4:5] for QFN)
• Support interfaces that can be used to monitor control of the RF front-end and Bluetooth
®
baseband controller
For more information about the DIO multiplexed signals, refer to the Hardware Reference Manual for RSL10.
The WLCSP board provides access to any of the DIOs or their multiplexed signals via the
DIO0-15 headers. One
16-pin protected header, organized in a 2x8 configuration, is provided on the board.
The QFN board provides access to any of the DIOs or their multiplexed signals via the Arduino Headers (
Power1,
AD1, IOL1, and IOH1).
The LED circuit provides visual monitoring of the DIOs; refer to Section 3.5, “LED Circuitry” on page 14 for
further information.
3.9 POWER SUPPLIES AND TEST POINTS
There are several external power supplies available on your Evaluation and Development Board. Depending on
what type of board you are working with, test points might also be present.
The user can also access signals on various headers on boards, as described throughout this document.
3.9.1 WLCSP Power Supply and Test Points
External power supplies available for WLCSP boards are:
• VBUS, 5 V from USB connection - available only when USB is plugged in
• V3.3, 3.3 V from LDO - available when regulated supply is selected
• VEXT, unregulated external supply - available when unregulated supply is selected
The user can also access signals on various headers on boards, as described throughout this document.
The WLCSP board includes several test points which the user can access to measure the following internal power
supplies:
• VDDA
• VDDC
• VDDM
• VDDPA
•VCC
To Next Page
Loading...
