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PM0237 数据表(PDF) 27 Page - STMicroelectronics

部件名 PM0237
功能描述  The main purpose of this document is to provide a developer
PDF  88 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

PM0237 数据表(HTML) 27 Page - STMicroelectronics

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PM0237
Bluetooth low energy technology
88
On GAP context, two fundamental concepts are defined:
•
GAP modes: it configures a device to act in a specific way for a long time. There are
four GAP modes types : broadcast, discoverable, connectable and bondable type.
•
GAP procedures: it configures a device to perform a single action for a specific, limited
time. There are four GAP procedures types: observer, discovery, connection, bonding
procedures.
Different types of discoverable and connectable modes can be uses at the same time. The
following GAP modes are defined:
Table 20. GAP broadcaster mode
Mode
Description
Notes
GAP role
Broadcast mode
Device only broadcasts
data using the link layer
advertising channels and
packets (it does not set any
bit on Flags AD type).
Broadcasts data can be
detected by a device using
the observation procedure
Broadcaster
Table 21. GAP discoverable modes
Mode
Description
Notes
GAP role
Non-discoverable
mode
It cannot set the limited and
general discoverable bits on
Flags AD type.
It cannot be discovered by a
device performing a general
or limited discovery
procedure
Peripheral
Limited
discoverable mode
It sets the limited
discoverable bit on Flags AD
type.
It is allowed for about 30 sec.
It is used by devices with
which user has recently
interacted. For example,
when a user presses a button
on the device.
Peripheral
General
discoverable mode
It sets the general
discoverable bit on Flags AD
type.
It is used when a device
wants to be discoverable.
There is no limit on the
discoverability time.
Peripheral



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