Z0220516PSG1961 Zilog, Z0220516PSG1961 Datasheet - Page 20

• Manufacturer Part Number: Z0220516PSG1961
• Description: IC MODEM CTRL 86E34 28-DIP
• Manufacturer: Zilog

Specifications of Z0220516PSG1961

• Data Format: V.22
• Baud Rates: 2.4k
• Interface: Serial
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Through Hole
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Z02205
Modem Controller
MODEM S-REGISTERS
The value of an S-register is modified by ATSn = x, where
n is the register number and x is the value to be stored in
that particular register. Each S-register has three values that
18
Register
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
Range
0–255
0–255
0–255
0–127
0–127
0–127
2–255
1–255
0–255
1–255
1–255
50–255
0–255
Reserved
Reserved
Reserved
Reserved
–6 to –43
Reserved
Reserved
Reserved
ASCII
ASCII
Units
Rings
Rings
ASCII
ASCII
Seconds
Seconds
Seconds
1/10th sec
1/10th sec
msec
1/50th sec
Reserved
Reserved
Reserved
Reserved
–dBm
Reserved
Reserved
Reserved
Sets the End of Line character. Default = 13
Sets the Line Feed Character. Default = 10
Delays to Wait when a Comma Dial Modifier is Processed. Default = 2 sec.
Description
Sets number of rings to auto-answer. The country configuration may disable the modem’s
ability to detect a telephone line ring signal. In this case, the modem will never
automatically answer the telephone regardless of the S0 setting. Default = 0 (auto-answer
disabled)
Returns the number of times the phone rings. Default = 0
Sets Escape Sequence Character. Setting S2 to a value greater than 127 disables the
character escape sequence, preventing the modem from returning to Command state
when in the On-Line state. Default = 43
Sets the BackSpace Character. Default = 8
Delays to Wait Before Performing a Blind Dial. Default = 2 seconds
Delays to Wait for Carrier after dialing. Default = 30 seconds
Time Carrier Must be Present Before Being Recognized. Default = 0.6 sec.
Delay Between Lost Carrier and Hang Up. Setting S-register S10 to 255 prevents the
modem hanging up the telephone line because of a loss of carrier. Default = 14 tenths of a
second
Multi-Frequency Tone duration. Default = 95 milliseconds
Escapes Prompt delay time. This is the prompt delay time for escape sequences from the
On-Line state to the Command state. Default = 50 fiftieths of a second
Reserved
Reserved
Reserved
Reserved
Sets Transmit level. Default = –10 dBm
Reserved
Reserved
Reserved
Table 4. Modem S-Registers
may be configured for different countries: a default value,
an upper limit, and a lower limit. The values shown in this
manual are for North America.
PS001000-MOD0599
ZiLOG