DWM3000 Datasheet

© Qorvo 2020

Preliminary

Version 0.1

Page 9

1.4 General Purpose Input Output (GPIO)

The DWM3000 provides 8 configurable pins.

On reset, all GPIO pins default to input. GPIO inputs, when appropriately configured, are capable of generating

interrupts to the host processor via the IRQ signal.

See DW3000 datasheet and DW3000 user manual provide full details of the configuration and use of the GPIO

lines.

1.5 Always-On (AON) Memory

Configuration retention in lowest power states is enabled in DWM3000 by provision of an Always-On (AON)

memory array with a separate power supply, VDD1. The DWM3000 may be configured to upload its configuration

to AON before entering a low-power state and to download the configuration when waking up from the low –

power state.

1.6 One-Time Programmable (OTP) Memory

The DWM3000 contains a 128x32-bit user programmable OTP memory that is used to store per chip calibration

information.

1.7 Interrupts and Device Status

DWM3000 has a number of interrupt events that can be configured to drive the IRQ output pin. The default IRQ

pin polarity is active high. A number of status registers are provided in the system to monitor and report data of

interest. See DW3000 user manual for a full description of system interrupts and their configuration and of status

registers.

1.8 MAC

A number of MAC features are implemented including CRC generation, CRC checking and receive frame filtering.

See the DW3000 datasheet and DW3000 user manual for full details.