NRF7002-QFAA-R7 datasheet(23/61 Pages) NORDIC

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Coexistence

Signal name

I/O

Requirement

Bluetooth LE/IEEE

802.15.4 signal (3-

wire/4-wire)

Description

COEX_REQ

Input

Mandatory for 3-

wire and 4-wire

SR_REQUEST

Bluetooth LE/IEEE 802.15.4

device requesting a TX/RX

transaction

COEX_STATUS0

Input

Mandatory for 3-

wire and 4-wire

SR_STATUS

Indicates if the Bluetooth LE/

IEEE 802.15.4 transaction is TX

or RX. If the device supports

a Priority signal, Priority is

muxed with TX/RX on this

signal based on the timing

diagrams.

COEX_GRANT

Output

Mandatory for 3-

wire and 4-wire

SR_GRANT

Indicates that the Bluetooth

LE/IEEE 802.15.4 device

is granted access for this

transaction.

COEX_STATUS1/

SW_CTRL1

Input/

Output

Optional for 3-wire SR_PTI/

RF_SW_CTRL1

In 4-wire mode, this carries

the Bluetooth LE/IEEE

802.15.4 1 bit priority signal.

In 3-wire Shared Antenna

mode, this can be optionally

used as a second antenna

switch control signal.

SW_CTRL0

Output

Mandatory for 3-

wire and 4-wire

Shared Antenna

mode. Optional

otherwise

RF_SW_CTRL0

Used for antenna switch

control in Shared Antenna

mode.

Table 6: Coexistence hardware signals

Note: The behavior of SW_CTRL0/1 is programmable and dependent on the configured

coexistence mode and switch control interface.

8.1 Bluetooth LE/IEEE 802.15.4 timing

This sections provides several Bluetooth LE/IEEE 802.15.4 timing diagrams and parameters.

3-wire with multiplexed priority

The following diagram shows external Bluetooth LE/IEEE 802.15.4 timing parameters when SR_STATUS

carries both priority and TX/RX information in a time multiplexed manner.

4486_184 v1.0

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