- 您現在的位置：買賣IC網 > PDF目錄361044 > LMX9820A (National Semiconductor Corporation) Bluetooth Serial Port Module PDF資料下載
參數資料
| 型號： | LMX9820A |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Bluetooth Serial Port Module |
| 中文描述： | 藍牙串行端口模塊 |
| 文件頁數： | 14/44頁 |
| 文件大小： | 579K |
| 代理商： | LMX9820A |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁當前第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁
www.national.com
14
Revision 1.0
L
7.0 Functional Description
(Continued)
7.0 Functional Description
7.1 BASEBAND AND LINK MANAGEMENT
PROCESSORS
Baseband and Lower Link control functions are imple-
mented using a combination of National Semiconductor’s
CompactRISC 16-bit processor and the Bluetooth Lower
Link Controller. These processors operate from integrated
Flash memory and RAM and execute on-board firmware
implementing all Bluetooth functions.
7.1.1 Bluetooth Lower Link Controller
The integrated Bluetooth Lower Link Controller (LLC) com-
plies with the Bluetooth Specification version 1.1 and
implements the following functions:
Support for 1, 3, and 5 slot packet types
79-channel hop frequency generation circuitry
Fast frequency hopping at 1600 hops per second
Power management control
Access code correlation and slot timing recovery
7.1.2 Bluetooth Upper Layer Stack
The integrated upper layer stack is prequalified and
includes the following protocol layers:
L2CAP
RFComm
SDP
7.1.3 Profile Support
The on-chip application of the LMX9820A allows full stand-
alone operation, without any Bluetooth protocol layer nec-
essary outside the module. It supports the Generic Access
Profile (GAP), the Service Discovery Application Profile
(SDAP), and the Serial Port Profile (SPP).
The on-chip profiles can be used as interfaces to additional
profiles executed on the host. The LMX9820A includes a
configurable service database to answer requests with the
profiles supported.
7.1.4 Application with Command Interface
The module supports automatic slave operation eliminating
the need for an external control unit. The implemented
transparent option enables the chip to handle incoming
data raw, without the need for packaging in a special for-
mat. The device uses a fixed pin to block unallowed con-
nections.
Acting as master, the application offers a simple but versa-
tile command interface for standard Bluetooth operations
such as inquiry, service discovery, and serial port connec-
tion. The firmware supports up to three slaves. Default Link
Policy settings and a specific master mode allow optimized
configuration for the application specific requirements. See
also Section "Integrated Firmware" on page 24.
Figure 9. Transceiver Return Loss
相關PDF資料 |
PDF描述 |
|---|---|
| LMX9820ASM | Bluetooth Serial Port Module |
| LMX9820 | Bluetooth Serial Port Module |
| LMX9820SB | Bluetooth Serial Port Module |
| LMX9820SBX | Bluetooth Serial Port Module |
| LP3882ESX-1.2 | 1.5A Fast-Response Ultra Low Dropout Linear |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LMX9820ADEV | 制造商:Texas Instruments 功能描述:KIT DEV FOR LMX9820 |
| LMX9820ADONGLE/NOPB | 制造商:Texas Instruments 功能描述:KIT REF DESIGN FOR LMX9820 |
| LMX9820ASM | 制造商:Texas Instruments 功能描述:BLUETOOTH MODULE, SMD, 9820, FR4129 |
| LMX9820ASM/NOPB | 制造商:Texas Instruments 功能描述:IC MODULE BLUETOOTH 116-LTCC |
| LMX9820ASMX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Bluetooth Serial Port Module |
發布緊急采購，3分鐘左右您將得到回復。