SN260Q STMicroelectronics, SN260Q Datasheet - Page 33

• Manufacturer Part Number: SN260Q
• Description: IC ZIGBEE/802.15.4 PROC 40-QFN
• Manufacturer: STMicroelectronics

Specifications of SN260Q

• Frequency: 2.4GHz
• Modulation Or Protocol: 802.15.4
• Applications: ZigBee™
• Power - Output: -32dBm ~ 5dBm
• Sensitivity: -97.5dBm
• Voltage - Supply: 2.1 V ~ 3.6 V
• Current - Receiving: 35.5mA
• Current - Transmitting: 35.5mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-QFN
• For Use With: 497-6404 - BOARD EVAL SPZB260 MOD FOR STR9497-5990 - KIT EVAL REVA FOR ZIGBEE497-5879 - NETWORK DEVELOPMENT FOR SN260497-5877 - KIT RADIO CARRIER FOR SN260
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Data Rate - Maximum: -

SN260
7.7.4
Figure 12. Timing diagram of the three-part transaction
Three-part transaction: Wake, Get Version, Stack Status Callback
1.
2.
3.
4.
5.
6.
7.
8.
9.
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,
12. Bit 7 is always set and bit 6 is always cleared in the Version Response, so this is
13. Deactivate Slave Select.
14. Host begins timing the inter-command spacing of 1ms in preparation for sending the
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:
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
Activate nWAKE and activate timeout timer.
SN260 wakes up (if not already) awake and enables communication.
nHOST_INT asserts, indicating the SN260 can accept commands.
Host sees nHOST_INT activation within 10ms and deactivates nWAKE and timeout
timer.
nHOST_INT de-asserts immediately after nWAKE.
Activate Slave Select.
Transmit the Command 0x0A - SPI Protocol Version Request.
Transmit the Frame Terminator, 0xA7.
Wait for nHOST_INT to assert.
0xA7.
Version 1.
next command.
–
–
–
–
–
–
Terminator.
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
SPI protocol
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