Z0221500ZCO Zilog, Z0221500ZCO Datasheet - Page 42

• 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

Using The AT Command Set
Mnemonic Name
&C
#CID=
Data Carrier
Detect Options
Caller ID
Options
Function and Description
This command determines how the modem’s data carrier detect
(DCD) signal relates to the carrier signal (RLSD) from the other
modem. This option takes effect only at the beginning of a tele-
phone line connection. If &C is issued from the COMMAND
state, it does not have an immediate effect.
&C0
&C1
This command controls the display of North American caller
identification information. If caller ID has been disabled in the
country configuration, the modem responds to a #CID=
command with an ERROR result code.
Caller ID information is displayed only when it is provided by the
telephone company, and only when the terminal data rate is 2400
bps or higher. Lower data rates are too slow to display the Caller
ID information.
#CID=0
#CID=1
#CID=2
#CID=?
PRELIMINARY
During asynchronous operation ( &Q0 in effect), DCD
is ON at all times. During synchronous operation
( &Q1 , &Q2 or &Q3 ), DCD reflects the state of the
carrier signal from the other modem using S-registers
S9 and S10 . This value is the default value in North
America.
This command reflects the state of the carrier signal
from the other modem using S-registers S9 and S10 .
This option does not display caller identification infor-
mation. This value is the default value.
The information is displayed as formatted data.
The information is displayed as unformatted data.
The current setting of the #CID= command option is
displayed.
Evaluation Board User Manual
Z02215 Single-Chip Modem
UM002304-0802
36