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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)： | 25/47頁 |
| 文件大?。?/td> | 1592K |
| 代理商： | SN260Q |
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SN260
SPI protocol
1.
Activate Slave Select (nSSEL).
2.
Transmit the command 0x0A - SPI Protocol Version Request.
3.
Transmit the Frame Terminator, 0xA7.
4.
Wait for nHOST_INT to assert.
5.
Transmit and receive 0xFF until a byte other than 0xFF is received.
6.
Receive response 0x82 (a byte other than 0xFF), then receive the Frame Terminator,
0xA7
.
7.
Bit 7 is always set and bit 6 is always cleared in the Version Response, so this is
Version 2.
8.
De-activate Slave Select.
7.7.2
EmberZNet serial protocol frame — Version command
Figure 10.
EmberZNet serial protocol frame - Version command example
1.
Activate Slave Select (nSSEL).
2.
Transmit the appropriate command:
–
0xFE: SPI Byte indicating an EZSP Frame
–
0x04: Length Byte showing the EZSP Frame is 4 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
–
0x00: EZSP Frame ID Byte indicating the Version command
–
0x02: EZSP Parameter for this command (desiredProtocolVersion)
–
0xA7: Frame Terminator
3.
Wait for nHOST_INT to assert.
4.
Transmit and receive 0xFF until a byte other than 0xFF is received.
5.
Receive response 0xFE (a byte other than 0xFF) and read the next byte for a length.
6.
Stop transmitting after the number of bytes (length) is received plus the Frame
Terminator.
7.
Decode the response:
–
0xFE: SPI Byte indicating an EZSP Frame
–
0x07: Length Byte showing the EZSP Frame is 7 bytes long
–
0x00: EZSP Sequence Byte (Note that this value should vary based upon previous
sequence bytes)
–
0x80: EZSP Frame Control Byte indicating a response with no overflow
–
0x00: EZSP Frame ID Byte indicating the Version response
–
0x02: EZSP Parameter for this response (protocolVersion)
–
0x02: EZSP Parameter for this response (stackType)
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