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參數(shù)資料
| 型號(hào)： | LMX5001 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Dedicated Bluetooth Link Controller |
| 中文描述： | 專用藍(lán)牙鏈路控制器 |
| 文件頁數(shù)： | 10/13頁 |
| 文件大?。?/td> | 198K |
| 代理商： | LMX5001 |
Functional Description
(Continued)
ENCRYPTION ENGINE
A Bluetooth encryption engine is implemented in the
LMX5001. The algorithm of the engine follows figure 14.6
and Steps 2, 3 and 4 in section 14.3.5 of the Bluetooth
Specification 1.0A. The encryption engine initialization is car-
ried out over the LCI. It occurs after system load and before
the actual data transmission/receiving. 208 initialization bits
are loaded to LMX5001 after the system load. The LMX5001
then runs the encryption initialization for 26 μs. After encryp-
tion initialization the first 60 bytes of the “encryption stream
Z
t
” is sent back to the LMC to allow firmware enough time to
get the encrypted transmit data ready. The 60 byte lead time
is needed only for transmit, but it is sent regardless the type
of transaction to reduce the firmware complexity. The conse-
quent bytes in the encryption stream are piggy-backed with
the packet data once the transition starts. The encryption en-
abled data transfer activity on LCI is illustrated in the figures
below:
The 28 Encryption Initialization bytes are detailed in Table 6 below:
TABLE 6. Encryption Initialization Bytes
Byte No.
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Byte 9
Byte 10
Byte 11
Byte 12
Byte 13
Byte 14
Byte 15
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CL
24
1
CL
25
1
Kc’[0]
7
Kc’[0]
6
…Kc’[0]
0
CL[0]
L
Kc’[2]
6
…Kc’[2]
0
CL[0]
U
Kc’[4]
6
…Kc’[4]
0
Kc’[1]
0
0
0
Kc’[3]
0
1
1
Kc’[5]
0
Kc’[1]
7
…Kc’[1]
1
Kc’[6]
6
…Kc’[6]
0
Kc’[2]
7
Kc’[7]
0
Kc’[3]
7
…Kc’[3]
1
Kc’[8]
6
…Kc’[8]
0
Kc’[4]
7
Kc’[9]
0
Kc’[5]
7
…Kc’[5]
1
Kc’[10]
6
…Kc’[10]
0
Kc’[6]
7
Kc’[11]
0
Kc’[7]
7
…Kc’[7]
1
Kc’[12]
6
…Kc’[12]
0
Kc’[8]
7
Kc’[13]
0
Kc’[9]
7
…Kc’[9]
1
Kc’[14]
6
…Kc’[14]
0
Kc’[10]
7
Kc’[15]
0
Kc’[11]
7
…Kc’[11]
1
DS101340-5
FIGURE 4. Receive with encryption enabled (command code 0x12 or 0x15)
DS101340-6
FIGURE 5. Transmit with encryption enabled (command code 0x13 or 0x16)
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX5001VBC | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dedicated Bluetooth Link Controller |
| LMX5080 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ 2.7 GHz Low Power Dual Modulus Prescaler for RF Personal Communications |
| LMX5080M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ 2.7 GHz Low Power Dual Modulus Prescaler for RF Personal Communications |
| LMX5080MX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ 2.7 GHz Low Power Dual Modulus Prescaler for RF Personal Communications |
| LMX5251SQX/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 |
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