參數(shù)資料
型號(hào)： MQ80C154-20P883
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, 20 MHz, MICROCONTROLLER, CQFP44
封裝： CERAMIC, QFP-44
文件頁數(shù)： 63/101頁
文件大?。?/td> 3398K
代理商： MQ80C154-20P883
87
8168C-MCU Wireless-02/10
AT86RF212
Table 6-31. CCA Algorithm Status
Register Bit
Value
Description
0
CCA calculation not finished
CCA_DONE
1
CCA calculation finished
Bit 6 – CCA_STATUS
After a CCA request is completed, the result of the CCA measurement is available in
register bit CCA_STATUS. Note that register bit CCA_STATUS is cleared in response
to a CCA_REQUEST.
Table 6-32. CCA Status Result
Register Bit
Value
Description
0
Channel indicated as busy
CCA_STATUS
1
Channel indicated as idle
Bit 5 – Reserved
Bit 4:0 – TRX_STATUS
Refer to sections 5.1.5 and 5.2.6.
Register 0x08 (PHY_CC_CCA):
This register is provided to initiate and control a CCA measurement.
Table 6-33. Register 0x08 (PHY_CC_CCA)
Bit
7
6
5
4
Name
CCA_REQUEST
CCA_MODE[1]
CCA_MODE[0]
CHANNEL[4]
Read/Write
W
R/W
Reset Value
0
1
0
Bit
3
2
1
0
Name
CHANNEL[3]
CHANNEL[2]
CHANNEL[1]
CHANNEL[0]
Read/Write
R/W
Reset Value
0
1
0
1
Bit 7 – CCA_REQUEST
A manual CCA measurement is initiated by setting CCA_REQUEST = 1. The register
bit
is
automatically
cleared
after
requesting
a
CCA
measurement
with
CCA_REQUEST = 1.
Bit 6:5 – CCA_MODE
The CCA mode can be selected using register bits CCA_MODE.
Table 6-34. CCA Mode
Register Bits
Value
Description
0
“Carrier sense” OR “energy above threshold”
1
“Energy above threshold”
2
“Carrier sense” only
CCA_MODE
3
“Carrier sense” AND “energy above threshold”
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