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CC2570 Datasheet, PDF (21/32 Pages) Texas Instruments – 1- and 8-Channel ANT™ RF Network Processors
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CC2570
CC2571
SWRS095A – FEBRUARY 2011 – REVISED MARCH 2011
Byte
0
1
2
3 to n + 2
n+3
Table 4. ANT Serial Message Format
Name
SYNC
LENGTH
ID
DATA1–DATAn
CHECKSUM
Length
1
1
1
n
1
Description
Sync byte = 0xA4
Number of data bytes in message (n)
Message identifier
Message data bytes
XOR of all previous bytes.
NOTE
Important: It should be noted that for the asynchronous serial mode, the SYNC byte is
always sent as part of the messages and is always 0xA4. For the synchronous serial
protocol, the SYNC byte is always sent by ANT and is 0xA4 for ANT-to-host transactions
and 0xA5 for host-to ANT-transactions.
For complete details on the ANT/host interface, see the ANT document ANT Message Protocol and Usage.
Table 5 is a list of the command set applicable to the CC257x. The Requested column indicates that the
message must be requested by the host. The Event column indicates that the message is sent by ANT to the
host without any request from the host—for example, after a channel event. The Reply column indicates that the
command elicits a response from ANT.
Class
Config
messages
Notification
Control
Data
messages
Event
Table 5. ANT Serial Messages
Message (1)
ID
Description
UNASSIGN_CHANNEL_ID
0x41 Unassign a channel.
ASSIGN_CHANNEL_ID
0x42 Assign a channel.
CHANNEL_ID_ID
0x51 Set channel ID.
CHANNEL_MESG_PERIOD_ID 0x43 Set channel period.
CHANNEL_SEARCH_TIMEOUT_
ID
0x44
Set the channel-search time-out
period.
CHANNEL_RADIO_FREQ_ID
0x45 Set the channel RF frequency.
NETWORK_KEY_ID
0x46 Set the network key.
RADIO_TX_POWER_ID
0x47 Set the transmit power (all channels)
ID_LIST_ADD_ID
0x59 Add channel ID to search list.
ID_LIST_CONFIG_ID
0x5A Configure search list.
CHANNEL_RADIO_TX_POWER_
ID
0x60
Set the channel transmit power.
SET_LP_SEARCH_TIMEOUT_ID 0x60 Set the low-priority search time-out.
RX_EXT_MESGS_ENABLE_ID
0x66 Enable extended messages.
AUTO_FREQ_CONFIG_ID
0x70 Configure frequency agility feature.
PROX_SEARCH_CONFIG_ID
0x71 Set proximity search.
STARTUP_MESG_ID
0x6F Startup message (following reset).
SYSTEM_RESET_ID
0x4A Reset system.
OPEN_CHANNEL_ID
0x4B Open a channel.
CLOSE_CHANNEL_ID
0x4C Close a channel.
OPEN_RX_SCAN_ID
0x5B Open channel in scan mode.
REQUEST_ID
0x4D Request a message from ANT.
BROADCAST_DATA_ID
0x4E
Broadcast message (ANT→host and
host→ANT).
ACKNOWLEDGED_DATA_ID
0x4F
Acknowledged message (ANT→host
and host→ANT).
BURST_DATA_ID
0x50
Burst message (ANT→host and
host→ANT).
RESPONSE_EVENT_ID
0x40 Channel event message.
Reply
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
–
No
No
No
–
Requested
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Event
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
(1) Precede with MESG_
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