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Z0221524ASGR50A5 データシート(PDF) 38 Page - Zilog, Inc. |
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Z0221524ASGR50A5 データシート(HTML) 38 Page - Zilog, Inc. |
38 / 74 page Z02215 Single Chip Modem with Integrated Controller, Data Pump, and AFE PS001907-0904 AT Command Set 32 \R Minitel line reversal using RTS Options During V.23 Minitel connections, B4 and S-register S37 are 1. When the modem is transmitting at 75 bps, it can be configured to perform a Minitel line reversal when RTS changes from ON to OFF. To perform a Minitel line reversal, the modem transmitting at 75 bps changes its transfer rate to1200 bps (transmit) and 75 bps (receive). If the remote modem supports and is configured for Minitel operation with line reversals, it automatically detects the rate switch and changes its own transmit and receive data rates. See the section on See “Minitel Line Reversal” on page 44 for details. \R0 This option does not execute a Minitel line reversal when RTS changes from ON to OFF. This value is the default value. \R1 This option performs a Minitel line reversal when RTS changes from ON to OFF. Sn Sets the current S-register to n The Sn command sets the current S-register to the value n selected by the user. For example, ATS7 sets the current S-register to S7. The default value is 0. Sn addresses a particular S-register number so future commands like ? and = reads or writes the S-register. Modem reset and the &F command select S0 as the default S-register. &S Data Set Ready The &S command controls Data Set Ready. If &Q1, &Q2 or &Q3 (SYNCHRONOUS mode) is selected, the modem's DSR signal operates as if &S1 is set. If &Q0 (ASYNCHRONOUS mode) has been selected: &S0 This option forces DSR always ON. This value is the default value in North America. &S1 This option causes the modem's DSR signal to be ON at the start of handshaking and OFF when the modem is retraining or in the IDLE state. , Pause , Comma (,) makes the modem pause for a length of time in S-register S8 before processing the next character in the command line. ? Read an S-Register ? The ? command displays the value of the last S-register named in the Sn command. =x Write an S-register =x The =x command writes the value x to the last S-register named in the Sn command. The range of valid values for x depends upon the S-register being written. The value 0 is assumed if no value is provided for x. T Tone Dialing T Selects the tone method of dialing. Table 3. AT Command Set (Continued) Command Function and Description |
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同様の説明 - Z0221524ASGR50A5 |
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