Z0221500ZCO Zilog, Z0221500ZCO Datasheet - Page 38

• Manufacturer Part Number: Z0221500ZCO
• Description: Z02215 ONE-CHIP MODEM EVAL KIT
• Manufacturer: Zilog

Specifications of Z0221500ZCO

• Main Purpose: Telecom, Modem
• Utilized Ic / Part: Z02215
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Using The AT Command Set
Mnemonic Name
B
Communication
Standard
Option
Function and Description
The B command specifies a special telephone line modulation
standard:
1. Bell 212A instead of ITU-T V.22 at 1200 bps
2. Bell 103 instead of ITU-T V.21 at 300 bps
3. In data modes where the receive and transmit speeds are
4. In ITU-T V.23 data mode, Minitel line reversals.
5. In data modes where the receive and transmit speeds differ
When ON-LINE in data modes where the receive and transmit
speeds differ (V.23 and Bell 202), the modem only recognizes the
Escape Sequence (+++), and modem commands, at the higher of
the transmit and receive speeds.
S-register S37 also affects the selection of modulation standards.
S37 controls the telephone line data rate, and the split-rate data
mode (Bell 202 or V.23).
Configure both modems identically to prevent communication
failures caused by incompatible telephone line modulation stan-
dards.
different (ITU-T
V.23 or Bell 202), whether the caller or answerer transmits data
at the higher data rate.
(ITU-T V.23
or Bell 202), a 4-wire telephone interface instead of a 2-wire
telephone interface.
PRELIMINARY
Evaluation Board User Manual
Z02215 Single-Chip Modem
UM002304-0802
32