Z0221524ASGR50A5 Zilog, Z0221524ASGR50A5 Datasheet - Page 33

• Manufacturer Part Number: Z0221524ASGR50A5
• Description: IC MODEM CONTROLLER 44-LQFP
• Manufacturer: Zilog

Specifications of Z0221524ASGR50A5

• Data Format: V.21, V.22, V.23, Bell 103, Bell 212A
• Baud Rates: 2.4k
• Interface: Serial
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 44-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PS001907-0904
Command
O
P
&P
Q
Return to
ON-LINE
Mode
Pulse
Dialing
Pulse Dial
Make/Break
Ratios
Result Code
Display
Options
Table 3. AT Command Set (Continued)
Single Chip Modem with Integrated Controller, Data Pump, and AFE
Function and Description
The O command returns the modem to the ON-LINE mode. It frequently follows
the escape character sequence (+++) to resume communication with the
remote modem. If handshaking is started, the modem uses ORIGINATE or
ANSWER mode handshaking.
O0
O1
Selects the PULSE method of dialing. Pulse is the default dialing method in
North America.
The &P command sets the cadence of the pulse dial. The country configuration
may disable this command, forcing particular pulse dialing parameters. When
country restrictions are in effect and this command is issued, the modem
returns an ERROR result.
&P0
&P1
&P2
&P3
This command enables or disables display of result codes.
Q0
Q1
This option returns the modem to the ON-LINE state from
the COMMAND state during a telephone line connection.
The modem starts handshaking if there is no telephone line
connection but the modem was off-hook.
This option returns the modem to the ON-LINE state and
retrains its data pump during a telephone line connection.
The modem starts handshaking if no telephone line
connection exists and the modem is off-hook.
39%/61% make/break ratio and 10 pulses per second when
pulse dialing. This value is the default value.
33%/67% make/break ratio and 10 pulses per second when
pulse dialing.
39%/61% make/break ratio and 20 pulses per second when
pulse dialing.
33%/67% make/break ratio and 20 pulses per second when
pulse dialing.
For this option, result codes are displayed. This value is the
default value for North America.
Result codes are not displayed.
AT Command Set
Z02215
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