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0 April 2005 OCM-22 One-Chip Modem for Embedded Applications Features ■ Introduction OCM-22 is a low-cost modem solution for low-speed embedded applications.
OCM22 includes a simplified AT command set and supports data rates from 300 bits/s (V.
21) to 2400 bits/s (V.
22bis) and only requires a CSP1034 or CSP1035A to make a complete modem.
OCM-22 provides a choice of two system interfaces, a serial interface or an 8-bit parallel interface.
The serial interface can be used in systems that have an available serial port.
In other systems, the parallel interface can be I/O or memory mapped onto typical processor buses.
In typical applications, OCM-22 is pa...

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