Features: *ompatibility
- ITU-T V.90 (56000 to 28000 bps)
- ITU-T V.34 (33600 to 2400 bps)
- CCITT V.32bis (14400, 12000, 9600, 7200,4800bps)
- CCITT V.32 (9600, 7200, 4800bps)
- CCITT V.22bis (2400, 1200bps)
- CCITT V.22 (1200bps)
- CCITT V.23 (1200/75bps)
- Bell 212A (1200bps)
- Bell 103 (300bps)
*Fax
- CCITT V.17 (14400, 12000, 7200bps)
- CCITT V.29 (9600, 7200bps)
- CCITT V.27ter (4800, 2400bps)
- CCITT V.21 Channel 2 (300bps)
- Group III, Class 1
*Data Error Correction
- MNP Class 4
- CCITT V.42 LAPM
*Data Compression
- MNP Class5
- CCITT V.42bis
*Voice compression
- 2 and 4 bit ADPCM
- IMA ADPCM (Developing)
- 8 Bit PCM
*DTE Interface
- DTE speed up to 115200bps
*Enhanced T" command set and S registers
- TIA/EIA 602, ITU V.25 ter AT command
* Set
- TIA/EIA 578 Fax Class 1 command set
- TIA/EIA IS-101 Voice command set
*Video-ready modem interface V.80(Developing)
*.8bis (Developing)
*Integrated UART 16550
*Parallel and Serial interfaces
- 6, 7 and 8 bit character support
- Even, odd, mark and none parity detection and generation
- 1 and 2 stop bit support
- Auto DTE data speed detection through "AT"
*Caller identification (Caller ID) support
* Speakerphone
* Selectable world wide call progress tone detection
*16 Bit over-sampling codec
*Compromise and adaptive equalizer providing channel impairment compensation
*Plug and Play (PnP) support
*Enhanced 8032 compatible micro-controller
*Power Management (power down mode)
* 8 selectable interrupts
*Access up to 256K bytes external program memory
*Access up to 64K bytes external data memory
*NVRAM to store two user configurable, selectable profiles with three programmable telephone numbers
*Full duplex data mode test capabilities
- Analog loop test
Pinout
DescriptionThe DM560P integrated modem is a four chipset design that provides a complete solution for state-of-the-art, voice-band Plain Old Telephone Service(POTS) communication. The modem provides for Data (up to 56,000bps), Fax (up to 14,400bps),Voice and Full Duplex Speaker-phone functions to comply with various international standards.
The design of the DM560P is optimized for desktop personal computer applications and it provides a low cost, highly reliable, maximum integration, with the minimum amount of support required. The DM560P modem can operate over a dial-up network (PSTN)or 2 wire leased lines.
The modem of DM560P integrates auto dial and answer capabilities, synchronous and asynchronous data transmissions, serial and parallel interfaces, various tone detection schemes and data test modes.
The DM560P modem reference design is pre-approved for FCC part 68 and provides minimum design cycle time, with minimum cost to insure the maximum amount of success.
The simplified modem system, shown in figure below, illustrates the basic interconnection between the MCU, DSP, AFE and other basic components of amodem. The individual elements of the DM560P are:
* DM6580 Analog Front End (AFE). 28-pin PLCC package
* DM6581 ITU-T V.90 Transmit Digital Signal Processor (TX DSP). 100-pin QFP package
* DM6582 ITU-T V.90 Receive Digital Signal Processor (RX DSP). 100-pin QFP package
* DM6583 Modem Controller (MCU) built in Plug & Play (PnP). 100-pin QFP package
DM560P Data Sheet
