Z0221500ZCO Zilog, Z0221500ZCO Datasheet - Page 37

• Manufacturer Part Number: Z0221500ZCO
• Description: Z02215 ONE-CHIP MODEM EVAL KIT
• Manufacturer: Zilog

Specifications of Z0221500ZCO

• Main Purpose: Telecom, Modem
• Utilized Ic / Part: Z02215
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

AT COMMANDS
Using The AT Command Set
Mnemonic Name
A
Note:
Answer
North American default values are designated by bold type. The
operation of these commands, and the default values of option
commands, is configurable for operation in different countries.
Function and Description
The A command makes the modem go OFF-HOOK and respond
to an incoming call. This command is issued after the modem has
returned the RING result code.
If the modems successfully complete the answering process, each
returns a CONNECT result code and enters the ON-LINE state.
If no transmit carrier signal is received from the calling modem
within the time specified in S-register S7 , the modem hangs up,
returns the NO CARRIER result code, and enters the IDLE state.
If the modem is in the Command state or &Q2 or &Q3 is selected
then the ERROR result code is returned. Any commands
following the answer command on the command line are ignored.
This command is aborted if a key is pressed before the answer
process is completed, when DTR is OFF, or if some options in the
&Q or &D commands have been used.
PRELIMINARY
Evaluation Board User Manual
Z02215 Single-Chip Modem
UM002304-0802
31