Z0221524VSGR4508 Zilog, Z0221524VSGR4508 Datasheet - Page 43
Z0221524VSGR4508
Manufacturer Part Number
Z0221524VSGR4508
Description
IC 2400BPS MODEM CTRL 44-PLCC
Manufacturer
Zilog
Datasheets
1.Z0221524VSCR4508.pdf
(74 pages)
2.Z0221524VSGR4508.pdf
(4 pages)
3.Z0221524VSGR4508.pdf
(2 pages)
Specifications of Z0221524VSGR4508
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-LCC (J-Lead)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Modem S-Registers
PS001907-0904
Register Range
S0
S1
S2
S3
S4
S5
0–255
0–255
0–255
0–127
0–127
0–127
Modem S-registers contain the values of special purpose ASCII characters, timing
parameters and other modem parameters. The value of an S-register is modified
by the AT S command. Each S-register has three values that may be configured
for specified countries: a default value, an upper limit, and a lower limit. The val-
ues described in this manual are for North America.
Table 7. Modem S-Registers
Default
0
0
43
13
10
8
Single Chip Modem with Integrated Controller, Data Pump, and AFE
Units
Rings
Rings
ASCII
ASCII
ASCII
ASCII
Description
Sets number of rings before auto-answer. The modem
automatically answers the telephone after it rings the number
of times specified in register S0. If S-register S0 is 0 the
modem does not automatically answer the telephone. Any
value from 0 to 255 is valid. The country configuration may
disable the modem’s ability to detect a telephone line ring
signal. In this case, the modem never automatically answers
the telephone regardless of the S0 setting. The default value
is 0 (auto-answer disabled)
Returns the number of times the phone rings. When the
modem is in the IDLE state and set to automatically answer
the telephone (S-register S0 > 0), the modem records the
number of times the phone rings in S-register S1. The value of
S1 reverts to 0 if no ring occurs for several seconds.
Sets escape sequence character. S-register S2 is the value
of the 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. The ASCII default value is +.
Sets the end-of-line character. S-register S3 is the value of
the end of line character. S3 is used at the end of command
lines and result codes.
Sets the line feed character. S-register S4 is the value of the
character for line feed.
Sets the backspace character. S-register S5 is the value of
the character for backspace. This character moves the cursor
left on a command line, deleting the previous character.
Modem S-Registers
Z02215
37