Z0221524ASGR50A5 Zilog, Z0221524ASGR50A5 Datasheet - Page 45

• 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
Register Range
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
1–255
50–255
0–255
Reserved
Reserved
Reserved
Reserved
6 to 43
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Table 7. Modem S-Registers (Continued)
Default
14
95
50
10
Single Chip Modem with Integrated Controller, Data Pump, and AFE
Units
1/10th
second
msecond DTMF tone duration. S-register S11 is the duration of a
1/50th
second
Reserved Reserved
Reserved Reserved
Reserved Reserved
Reserved Reserved
–dBm
Reserved Reserved
Reserved Reserved
Reserved Reserved
Reserved Reserved
Reserved Reserved
Reserved Reserved
Reserved Reserved
Description
Delay between lost carrier and hang up. S-register S10 is
the time between loss of the carrier signal from the other
modem and hang up by this modem. The carrier signal may
be lost for periods up to S10 minus S9 without causing the
modem to hang up. Setting S-register S10 to 255 causes the
modem to never hang up the telephone line because of loss of
carrier.
The modem only recognizes a carrier signal after the time
specified in S-register S9. S-register S10 must always be
greater than S-register S9 so a carrier signal can be
recognized before the telephone line goes off-hook.
DTMF tone. The country configuration may also specify that
S11 is the time between DTMF tones.
Escape prompt delay time. Register S12 is the prompt delay
time for escape sequences from the ON-LINE state to the
COMMAND state.
Sets transmit level. The actual transmit power used is
adjustable by the country configuration to accommodate
differences in transformers and other components in the
telephone line interface.
Modem S-Registers
Z02215
39