Z0221524AECR4508 Zilog, Z0221524AECR4508 Datasheet - Page 30
Z0221524AECR4508
Manufacturer Part Number
Z0221524AECR4508
Description
IC 2400BPS MODEM CTRL 44-VQFP
Manufacturer
Zilog
Specifications of Z0221524AECR4508
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
Contains lead / RoHS non-compliant
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PS001907-0904
Command
&HT
PTT Test
Table 3. AT Command Set (Continued)
Single Chip Modem with Integrated Controller, Data Pump, and AFE
Function and Description
The &HT command enables the modem to transmit tones for PTT testing. The
test tone is generated until a character is typed on the modem’s terminal. If this
command is issued when the command is disabled by a country configuration,
the modem returns an ERROR result.
&HT0 – &HT9
&HT10
&HT11
&HT12
&HT13
&HT14
&HT15
&HT16
&HT17
&HT18
&HT19
&HT20
&HT21
&HT22
&HT23
&HT24
&HT25
&HT26
&HT27
&HT28
DTMF tone for digit n where the command is &HTn
DTMF tone“*”
DTMF tone “#”
DTMF tone “A”
DTMF tone “B”
DTMF tone “C”
DTMF tone “D”
V.21 channel 1 mark
V.21 channel 2 marks
V.23 1200bps marks
V.23 75bps marks
V.21 channel 1 spaces
V.21 channel 2 spaces
V.23 1200bps spaces
V.23 75bps spaces
V.22 originate mode
V.22 answer mode
V.22bis originate mode
V.22bis answer mode
V.25 calling tone
AT Command Set
Z02215
24
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