Z16M1720ASG1868 Zilog, Z16M1720ASG1868 Datasheet - Page 322

• Manufacturer Part Number: Z16M1720ASG1868
• Description: IC PCMCIA INTERFACE 100-VQFP
• Manufacturer: Zilog

Specifications of Z16M1720ASG1868

• Applications: *
• Interface: *
• Voltage - Supply: *
• Package / Case: 100-LQFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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UM008101-0601
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7 U G T / C P W C N
Figure 125. Synchronous/Asynchronous Processor-to-Processor
Communication (Direct Wire to Remote Locations)
Figure 126 illustrates how both channels of a single Z80 SIO are used with
modems that have primary and secondary or reverse channel options.
Alternatively, two modems without these options can be connected to the
Z80 SIO. A correct baud-rate generator (Z80 CTC) must be used for asyn-
chronous modems.
Figure 126. Synchronous/Asynchronous Processor-to-Processor
Figure 127 depicts the Z80 SIO in a data concentrator, a relatively
complex application that uses two Z80 SIOs to perform a variety of func-
tions. The data concentrator can be used to collect data from many termi-
nals over low-speed lines and transmit it over a single high-speed line after
editing and reformatting.
CPU
Z80
CPU
Z80
Communication (Using Telephone Line)
Z80
SIO
Z80
SIO
Receivers
Ch.A
Ch.B
Drivers/
RSXYZ
Secondary
Channel
Channel
Primary
Receiver
Driver/
RS
Receivers
Receivers
RSXYZ
Drivers/
RSXYZ
Drivers/
(SYNC or
ASYNC)
Modem
Z80
SIO
Z80
SIO
to Remote
Processor
Data Link
Serial Input/Output
CPU
CPU
Z80
Z80