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參數(shù)資料
| 型號： | LMX9830SMX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | BluetoothTM Serial Port Module |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PBGA60 |
| 封裝： | 9 X 6 MM, 1.20 MM HEIGHT, 0.80 MM PITCH, PLASTIC, FBGA-60 |
| 文件頁數(shù)： | 30/46頁 |
| 文件大小： | 664K |
| 代理商： | LMX9830SMX |
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30
L
10.0 Integrated Firmware
(Continued)
9.9.4 Component Values for NSC Reference Designs
The following is a list of components for the loop filter val-
ues used on National reference design, (Serial Dongle)
they have been tweaked and optimized in each case to
yield optimum performance for each case. The values dif-
fer slightly from one platform to another due to board
paracitics caused by layout differences.
10.0 Integrated Firmware
The LMX9830 includes the full Bluetooth stack up to
RFComm to support the following profiles:
■
GAP (Generic Access Profile)
■
SDAP (Service Discovery Application Profile)
■
SPP (Serial Port Profile)
Figure 20 shows the Bluetooth protocol stack with com-
mand interpreter interface. The command interpreter offers
a number of different commands to support the functional-
ity given by the different profiles. Execution and interface
timing is handled by the control application.
The chip has an internal data area in RAM that includes the
parameters shown in Table 23 on page 31.
10.1 FEATURES
10.1.1 Operation Modes
On boot-up, the application configures the module following
the parameters in the data area.
Automatic Operation
No Default Connections Stored:
In Automatic Operation the module is connectable and dis-
coverable and automatically answers to service requests.
The command interpreter listens to commands and links
can be set up. The full command list is supported.
If connected by another device, the module sends an event
back to the host, where the RFComm port has been con-
nected, and switches to transparent mode.
Default Connections Stored:
If default connections were stored on a previous session,
once the LMX9830 is reset, it will attempt to connect each
device stored within the data RAM three times. The host
will be notified about the success of the link setup via a link
status event.
Non-Automatic Operation
In Non-Automatic Operation, the LMX9830 does not check
the default connections section within the Data RAM. If
connected by another device, it will NOT switch to transpar-
ent mode and continue to interpret data sent on the UART.
Transparent Mode
The LMX9830 supports transparent data communication
from the UART interface to a bluetooth link.
If activated, the module does not interpret the commands
on the UART which normally are used to configure and
control the module. The packages don’t need to be format-
ted as described in Table 25 on page 34. Instead all data
are directly passed through the firmware to the active blue-
tooth link and the remote device.
Transparent mode can only be supported on a point-to-
point connection. To leave Transparent mode, the host
must send a UART_BREAK signal to the module
Force Master Mode
In Force Master mode tries to act like an Accesspoint for
multiple connections. For this it will only accept the link if a
Master/slave role switch is accepted by the connecting
device. After successful link establishment the LMX9830
will be Master and available for additional incoming links.
On the first incoming link the LMX9830 will switch to trans-
parent depending on the setting for automatic or command
mode. Additional links will only be possible if the device is
not in transparent mode.
10.1.2 Default Connections
The LMX9830 supports the storage of up to 3 devices
within its NVS. Those connections can either be connected
after reset or on demand using a specific command.
10.1.3 Event Filter
The LMX9830 uses events or indicators to notify the host
about successful commands or changes at the bluetooth
interface. Depending on the application the LMX9830 can
be configured. The following levels are defined:
■
No Events:
– The LMX9830 is not reporting any events. Optimized
for passive cable replacement solutions.
■
Standard LMX9830 events:
– only necessary events will be reported
■
All events:
– Additional to the standard all changes at the physical
layer will be reported.
Platform
C8
C7
C9
R23
R14
LMX9830
Dongle
220pF
2200pF
39pF
3.3k
10k
Figure 20. LMX9830 Software Implementation
Command Interpreter
Control Application
SPP
GAP
SDAP
RFComm
L2CAP
Link Manager
Baseband
SDP
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| LMX9838 | Bluetooth Serial Port Module |
| LMX9838SB | Bluetooth Serial Port Module |
| LMX9838SBX | Bluetooth Serial Port Module |
| LNBEH21 | LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND IC INTERFACE |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX9830SMX/NOPB | 功能描述:射頻收發(fā)器 RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
| LMX9838 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Bluetooth㈢ Serial Port Module |
| LMX9838_0709 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Bluetooth㈢ Serial Port Module |
| LMX9838DONGLE | 功能描述:藍(lán)牙/802.15.1 模塊 RoHS:否 制造商:Murata Wireless Solutions 類:1 頻帶:2402 MHz to 2480 MHz 靈敏度:- 92 dBm 數(shù)據(jù)速率: 工作電源電壓:2.2 V to 3.3 V 輸出功率: 接口類型:PCM, UART 天線連接器類型:Chip 最大工作溫度:+ 85 C 尺寸:17.5 mm x 16 mm x 2 mm |
| LMX9838DONGLE/NOPB | 功能描述:藍(lán)牙/802.15.1 模塊 RoHS:否 制造商:Murata Wireless Solutions 類:1 頻帶:2402 MHz to 2480 MHz 靈敏度:- 92 dBm 數(shù)據(jù)速率: 工作電源電壓:2.2 V to 3.3 V 輸出功率: 接口類型:PCM, UART 天線連接器類型:Chip 最大工作溫度:+ 85 C 尺寸:17.5 mm x 16 mm x 2 mm |
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