SPBT2532C2.AT STMicroelectronics, SPBT2532C2.AT Datasheet - Page 47

• Manufacturer Part Number: SPBT2532C2.AT
• Description: IC BLUETOOTH VER 2.1 CLASS 2
• Manufacturer: STMicroelectronics

Specifications of SPBT2532C2.AT

• Frequency: 2.4GHz
• Data Rate - Maximum: 2Mbps
• Modulation Or Protocol: Bluetooth v2.1+EDR, Class 2 & 3
• Applications: General Purpose
• Power - Output: 2dBm
• Sensitivity: -85dBm
• Voltage - Supply: 2.8 V ~ 3.6 V
• Data Interface: PCB, Surface Mount
• Memory Size: 256kB Flash, 48kB RAM
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Wireless Frequency: 2400 MHz to 2483.5 MHz
• Interface Type: I2C, I2S, SPI, UART
• Data Rate: 2 Mbps
• Modulation: AFH
• Operating Voltage: 2.8 V to 3.6 V
• Antenna: Without Antenna
• Board Size: 10 mm x 13 mm
• Operating Temperature Range: - 40 C to + 85 C
• Output Power: 4 mA
• Security: 128 bit Encryption
• Technology/ Type: Class 2 Bluetooth Module
• Processor Series: STLC2500
• For Use With: 497-10656 - BOARD DEMO BLUETOOTH SPBT2532C2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Transmitting: -
• Current - Receiving: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Bluetooth Devices
• Other names: 497-10539

SPBT2532C2.AT
F.4
Unexpected disconnect
Bluetooth connections may be unexpectedly dropped (e.g., in changing RF conditions).
Although it is generally assumed that a disconnect will be negotiated on the application
level, the remote device may initiate a disconnect. When that happens, the disconnect may
be unexpected. This section applies to both the general case and the unexpected
disconnect.
It is useful for the local host to be notified that a connection has been terminated when it isn’t
controlling the termination. An unexpected disconnect is essentially defined as a disconnect
that occurs while in bypass mode. If this happens, abSerial will respond with:
###NO CARRIER
AT-AB -CommandMode-
It is the responsibility of the host to prevent this string from appearing in the data stream
during normal operation.
If a remote disconnect occurs during command mode, this notification string is also sent. It
will not be sent, however, if an initial setup cannot be established or if the disconnect is
requested by the local device.
Hardware handshaking is not used to indicate a disconnection in this implementation.
Modems can use DCD (data carrier detect) to notify the DTE (data terminal entity, e.g.,
computer) that a connection is either available or unavailable.
Doc ID 16089 Rev 7
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