Z0220516PSG1961 Zilog, Z0220516PSG1961 Datasheet - Page 25

• 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

ZiLOG
The following blacklisting parameters can be controlled:
DYNAMIC POWER MANAGEMENT
The Z02205 incorporates a low-power
mode, the clock is shut down (effectively stopping the part).
The Modem Controller software automatically puts the mo-
dem’s data pump into a power-saving
is not used and there is no connection. The Modem Con-
troller software also puts the Modem Controller to sleep
when possible. This power-saving feature reduces the
amount of current used by 8 mA.
This sleep feature operates transparently to the modem’s op-
eration, saving approximately 58 mA of power when both
the modem data pump and controller are put into sleep
mode.
The modem controller goes to sleep under following con-
ditions:
FUNCTIONAL DESCRIPTION
Clock.
allel-resonant amplifier for connection to a crystal (XTAL1
is Input, XTAL2 is Output). The crystal should be
16 MHz max., with a series resistance (RS) of less than or
equal to 100 Ohms when counting from 1 MHz to 16 MHz.
Connect the crystal across
dor’s recommended capacitor values from each pin directly
to the device
into the oscillator.
Note: For better noise suppression, the capacitors must be tied
PS001000-MOD0599
Looking for an ’A’ (Auto Baud)
Minimum delay in seconds between successive dial at-
tempts
Number of successive dial attempts after which the fol-
lowing parameter applies
The ring line has been debounced
The Z02205 on-chip oscillator has a high-gain, par-
directly to the device Ground pin (V
GROUND
pin to reduce Ground noise injection
XTAL1
and
XTAL2
SLEEP
SLEEP
SS
).
using the ven-
mode when it
mode. In this
AT
cut,
In
timer interrupt and turns on the ring detect interrupt, leaves
the start bit interrupt running - then halts until an interrupt
occurs.
The Modem Controller cannot sleep if dial blacklisting has
been enabled in the country parameters and is being timed.
Nor can the Modem Controller sleep if
cause a DTR On-to-Off transition can not wake it up
SLEEP
Minimum delay in seconds between successive dial at-
tempts after
Unsuccessful dial attempts
Maximum number of dial attempts permitted in a series
of dial attempts
Blacklisting period in minutes for each series of dial at-
tempts
The RINGS register has been cleared
There are no incoming characters
There are no characters in the input queue
The Modem Controller is put to sleep until there is an in-
terrupt, such as:
A start bit from the terminal.
Telephone line ring detection from the telephone line in-
terface.
mode, the modem controller turns off the main
Modem Controller
AT
and
D3
is set be-
Z02205
23