PM0237 datasheet(13/88 Pages) STMICROELECTRONICS

13 / 88 page

DocID027104 Rev 2

13/88

PM0237

Bluetooth low energy technology

Advertising packet type:

Table 3. Advertising packet types

Packet type

Description

Notes

ADV_IND

Connectable undirected

advertising

Used by an advertiser when it

wants another device to connect

to it. Device can be scanned by

a scanning device, or go into a

connection as a slave device on

connection request reception.

ADV_DIRECT_IND

Connectable directed

advertising

Used by an advertiser when it

wants a particular device to

connect to it. The

ADV_DIRECT_IND packet

contains only advertiser’s

address and initiator address.

ADV_NONCONN_IND

Non-connectable undirected

advertising

Used by an advertiser when it

wants to provide some

information to all the devices,

but it does not want other

devices to ask it for more

information or to connect to it.

Device simply sends advertising

packets on related channels, but

it does not want to be

connectable or scannable by

any other device.

ADV_SCAN_IND

Scannable undirected

advertising

Used by an advertiser which

wants to allow a scanner to

require more information from it.

The device cannot connect, but

it is discoverable for advertising

data and scan response data.

SCAN_REQ

Scan request

Used by a device in scanning

state to request addition

information to the advertiser .

SCAN_RSP

Scan response

Used by an advertiser device to

provide additional information to

a scan device.

CONNECT_REQ

Connection request

Sent by an initiating device to a

device in

connectable/discoverable mode.

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