參數(shù)資料
型號(hào): MB9BF505RPMC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP120
封裝: 16 X 16 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-120
文件頁數(shù): 19/120頁
文件大?。?/td> 1277K
代理商: MB9BF505RPMC
115
8266D-MCU Wireless-06/12
ATmega128RFA1
A write access to these register bits sets the OQPSK PSDU data rate used by the radio
transceiver. The reset value OQPSK_DATA_RATE = 0 is the PSDU data rate according
to IEEE 802.15.4. All other values are used in High Data Rate Modes.
Table 9-46 OQPSK_DATA_RATE Register Bits
Register Bits
Value
Description
0
250 kb/s (IEEE 802.15.4 compliant)
1
500 kb/s
2
1000 kb/s
OQPSK_DATA_RATE1:0
3
2000 kb/s
9.12.17 ANT_DIV – Antenna Diversity Control Register
Bit
7
6
5
4
NA ($14D)
ANT_SEL
Res2
Res1
Res0
ANT_DIV
Read/Write
R
Initial Value
0
Bit
3
2
1
0
NA ($14D)
ANT_DIV_EN
ANT_EXT_SW_EN
ANT_CTRL1
ANT_CTRL0
ANT_DIV
Read/Write
RW
Initial Value
0
1
This register controls the Antenna Diversity.
Bit 7 – ANT_SEL - Antenna Diversity Antenna Status
This register bit signals the currently selected antenna path. The selection may be
based either on the last antenna diversity cycle (ANT_DIV_EN = 1) or on the content of
register bits ANT_CTRL.
Table 9-47 ANT_SEL Register Bits
Register Bits
Value
Description
0
Antenna 0
ANT_SEL
1
Antenna 1
Bit 6:4 – Res2:0 - Reserved
Bit 3 – ANT_DIV_EN - Enable Antenna Diversity
If this register bit is set the Antenna Diversity algorithm is enabled. On reception of a
frame the algorithm selects an antenna autonomously during SHR search. This
selection is kept until
1. A new SHR search starts or
2. Receive states are left or
3. A manually programming of bits ANT_CTRL occurred. If ANT_DIV_EN = 1 the bit
ANT_EXT_SW_EN shall also be set to 1.
Table 9-48 ANT_DIV_EN Register Bits
Register Bits
Value
Description
0
Antenna Diversity algorithm disabled
ANT_DIV_EN
1
Antenna Diversity algorithm enabled
Bit 2 – ANT_EXT_SW_EN - Enable External Antenna Switch Control
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