sta2416 STMicroelectronics, sta2416 Datasheet - Page 26

• Manufacturer Part Number: sta2416
• Description: Bluetooth?? Baseband With Integrated Flash
• Manufacturer: STMicroelectronics

General specification
5.10.2
5.10.3
5.10.4
5.11
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Inquiry/page scan
When only inquiry scan or page scan is enabled, the STA2416 will go in Sleep mode or
Deep Sleep mode outside the receiver activity. The selection between Sleep mode and
Deep Sleep mode depend on the UART activity like in SNIFF or PARK.
No connection
If the host places the UART in low power and there is no activity, then the STA2416 can be
placed in Deep Sleep mode.
Active link
When there is an active link (SCO or ACL), the STA2416 cannot go in Deep Sleep mode
whatever the UART state is. But the STA2416 baseband is made such that whenever it is
possible, depending on the scheduled activity (number of link, type of link, amount of data
exchanged), it goes in Sleep mode.
Software initiated low-power mode
A wide set of wake-up mechanisms is supported.
Bluetooth
The coexistence interface uses four GPIO pins, when enabled.
Bluetooth
band. STA2416 implements a set of mechanisms to avoid interference in a collocated
scenario.
The STA2416 supports five different algorithms in order to provide efficient and flexible
simultaneous function between the two technologies in collocated scenarios.
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The algorithm is selected via HCI command. The default algorithm is algorithm 1.
Algorithm 1: PTA (packet traffic arbitration) based coexistence algorithm defined in
accordance with the IEEE 802.15.2 recommended practice.
Algorithm 2: the WLAN is the master and it indicates to the STA2416 when not to
operate in case of simultaneous use of the air interface.
Algorithm 3: the STA2416 is the master and it indicates to the WLAN chip when not to
operate in case of simultaneous use of the air interface.
Algorithm 4: two-wire mechanism.
Algorithm 5: alternating wireless medium access (AWMA), defined in accordance with
the WLAN 802.11 b/g technologies.
®
wireless and WLAN 802.11 b/g technologies occupy the same 2.4-GHz ISM
®
, WLAN coexisting in collocated scenario
STA2416