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參數(shù)資料
| 型號： | M37906M8C-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PDSO42 |
| 封裝： | 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42 |
| 文件頁數(shù)： | 37/99頁 |
| 文件大?。?/td> | 1313K |
| 代理商： | M37906M8C-XXXFP |
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65
8168C-MCU Wireless-02/10
AT86RF212
Register 0x2E (CSMA_SEED_1):
The CSMA_SEED_1 register contains a part of the CSMA seed for the CSMA-CA
algorithm, as well as control bits for the Frame Filter and RX_AACK transaction.
Table 5-27. Register 0x2E (CSMA_SEED_1)
Bit
7
6
5
4
Name
AACK_FVN_MODE
AACK_SET_PD
AACK_DIS_ACK
Read/Write
R/W
Reset Value
0
1
0
Bit
3
2
1
0
Name
AACK_I_AM_COORD
CSMA_SEED[10]
CSMA_SEED[9]
CSMA_SEED[8]
Read/Write
R/W
Reset Value
0
1
0
Bit 7:6 – AACK_FVN_MODE
The frame control field of the MAC header (MHR) contains a frame version subfield.
The setting of AACK_FVN_MODE specifies the frame filtering and acknowledgement
behavior of the AT86RF212. According to the content of these register bits, the radio
transceiver passes frames with a specific frame version number, number group, or
independent of the frame version number.
Thus, the register bit AACK_FVN_MODE defines the maximum acceptable frame
version. Received frames with a higher frame version number than configured do not
pass the Frame Filter and thus are not acknowledged.
Table 5-28. Frame Version Subfield dependent Frame Acknowledgment
Register Bits
Value
Description
0
Acknowledge frames with version number 0
1
Acknowledge frames with version number 0 or 1
2
Acknowledge frames with version number 0 or 1 or 2
AACK_FVN_MODE
3
Acknowledge independent of frame version number
Note that the frame version field of the acknowledgment frame is set to 0x00 according
to IEEE 802.15.4-2006, section 7.2.2.3.1 “Acknowledgment frame MHR fields”.
Bit 5 – AACK_SET_PD
The content of AACK_SET_PD bit is copied into the “Frame Pending” subfield of the
acknowledgment frame if the ACK is the answer to a data request MAC command
frame.
In addition, if register bits AACK_FVN_MODE (register 0x2E, CSMA_SEED_1) are
configured to accept frames with a frame version other than 0 or 1, the content of
register bit AACK_SET_PD is also copied into the “Frame Pending” subfield of the
acknowledgment frame for any MAC command frame with a frame version of 2 or 3 that
have the security enabled subfield set to 1. This is done in the assumption that a future
version of the standard [2] might change the length or structure of the auxiliary security
header, so it would not possible to safely detect whether the MAC command frame is
actually a data request command or not.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37906M8C-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER |
| M37906T-PRB | 功能描述:DEV POD PROBE FOR M37900T2-RPD-E RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 配件 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:USB 至 1-Wire? RJ11 適配器 適用于相關(guān)產(chǎn)品:1-Wire? 設(shè)備 產(chǎn)品目錄頁面:1429 (CN2011-ZH PDF) |
| M37920FCCGP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION |
| M37920FCCHP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION |
| M37920FGCGP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION |
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