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參數(shù)資料
| 型號： | SN260Q |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | LOCAL AREA NETWORK CONTROLLER, QCC40 |
| 封裝： | 6 X 6 MM, 0.90 MM HEIGHT, ROHS COMPLIANT, MQ220, QFN-40 |
| 文件頁數(shù)： | 27/47頁 |
| 文件大?。?/td> | 1592K |
| 代理商： | SN260Q |
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SN260
SPI protocol
7.7.4
Three-part transaction: Wake, Get Version, Stack Status Callback
Figure 12.
Timing diagram of the three-part transaction
1.
Activate nWAKE and activate timeout timer.
2.
SN260 wakes up (if not already) awake and enables communication.
3.
nHOST_INT asserts, indicating the SN260 can accept commands.
4.
Host sees nHOST_INT activation within 10ms and deactivates nWAKE and timeout
timer.
5.
nHOST_INT de-asserts immediately after nWAKE.
6.
Activate Slave Select.
7.
Transmit the Command 0x0A - SPI Protocol Version Request.
8.
Transmit the Frame Terminator, 0xA7.
9.
Wait for nHOST_INT to assert.
10. Transmit and receive 0xFF until a byte other than 0xFF is received.
11. Receive response 0x82 (a byte other than 0xFF), then receive the Frame Terminator,
0xA7
.
12. Bit 7 is always set and bit 6 is always cleared in the Version Response, so this is
Version 1.
13. Deactivate Slave Select.
14. Host begins timing the inter-command spacing of 1ms in preparation for sending the
next command.
15. nHOST_INT asserts shortly after deactivating Slave Select, indicating a callback.
16. Host sees nHOST_INT, but waits for the 1ms before responding.
17. Activate Slave Select.
18. Transmit the command:
–
0xFE: SPI Byte indicating an EZSP Frame
–
0x03: Length Byte showing the EZSP Frame is 3 bytes long
–
0x00: EZSP Sequence Byte (Note that this value should vary based upon previous
sequence bytes)
–
0x00: EZSP Frame Control Byte indicating a command with no sleeping
–
0x06: EZSP Frame ID Byte indicating the callback command
–
0xA7: Frame Terminator
19. Wait for nHOST_INT to assert.
20. Transmit and receive 0xFF until a byte other than 0xFF is received.
21. Receive response 0xFE (a byte other than 0xFF), read the next byte for a length.
22. Stop transmitting after the number of bytes (length) is received plus the Frame
Terminator.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN260QT | 功能描述:射頻收發(fā)器 ZIGBEE 802.15.4 NETWORK PROCESSOR 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 |
| SN2634 | 制造商:Omron Corporation 功能描述:RELAY ASSEMBLY |
| SN26500PWR | 制造商:Texas Instruments 功能描述: |
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| SN27322 | 制造商:Texas Instruments 功能描述: |
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