NRF52810-QCAA-R datasheet(290/483 Pages) NORDIC

290 / 483 page

Peripherals

Transmit sequence on page 290 illustrates a single packet transmission where the CPU manually triggers

the different tasks needed to control the flow of the RADIO, i.e. no shortcuts are used. If shortcuts are

not used, a certain amount of delay caused by CPU execution is expected between READY and START, and

between END and DISABLE. As illustrated in Transmit sequence on page 290 the RADIO will by default

transmit '1's between READY and START, and between END and DISABLED. What is transmitted can be

programmed through the DTX field in the MODECNF0 register.

TXRU

TXIDLE

S0 L S1

PAYLOAD

CRC

TXIDLE

TXDISABLE

(carrier)

Figure 63: Transmit sequence

A slightly modified version of the transmit sequence from Transmit sequence on page 290 is illustrated

in Transmit sequence using shortcuts to avoid delays on page 290 where the RADIO is configured to

use shortcuts between READY and START, and between END and DISABLE, which means that no delay is

introduced.

TXRU

S0 L S1

PAYLOAD

CRC

TXDISABLE

(carrier)

Figure 64: Transmit sequence using shortcuts to avoid delays

The RADIO is able to send multiple packets one after the other without having to disable and re-enable

the RADIO between packets, this is illustrated in Transmission of multiple packets on page 291.

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NRF52810-QCAA-R Datasheet(PDF) 290 Page - Nordic Semiconductor