Chapter 3 – Supported GSM/WCDMA AT Commands
High Speed HSPA-H4 AT Commands Reference Guide (Document S000483A) 51
+ICF DTE-DCE Character Framing
Description: This command determines the local serial port start-stop (asynchronous) character framing
used by the DCE.
Syntax:
Command Responses
Action Command:
AT+ICF=<format>[,<parity>]
OK
Read Command:
AT+ICF?
AT+ICF: <format>,<parity>
OK
Test Command:
AT+ICF=?
AT+ICF: (list of supported <format>s),
(list of supported <parity>s)
OK
Values: <format> Character Framing Format
1 8 Data 2 Stop
<parity> parameter is ignored
2 8 Data 1 Parity 1 Stop
If no <parity> provided, 3 is used by default as <parity> value
3 8 Data 1 Stop
<parity> parameter is ignored. Default.
4 7 Data 2 Stop
<parity> parameter is ignored
5 7 Data 1 Parity 1 Stop
If no <parity> provided, 3 is used by default as <parity> value
6 7 Data 1 Stop
<parity> parameter is ignored
<parity> Character Framing Parity
0 Odd
1 Even
2 Mark
3 Space
4 None. Default.
Parameter Storage: The <format> and <parity> parameters are stored in EEPROM using AT&W
command. The default value can be restored using AT&F.
Examples:
Command Responses
AT+ICF=? +ICF: (1-6),(0-4)
OK
Note: Possible values
AT+ICF=2,0 OK
Note: New values
AT+ICF? +ICF: 2,0
OK
Note: Current values
Notes: All framing settings of the serial interface (i.e., 801, 8E1, 8S1, 8N1, 7N1, 7O1, 7E1, 7S1 and
7N2) are supported for autobaud mode.
If USB port is used:
• The action command is supported for compatibility reasons (but without effect).
• The response to the action command and the read command behavior is the
same as if sent on UART1 or UART2.
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