DM300004-1 Microchip Technology, DM300004-1 Datasheet - Page 86

• Manufacturer Part Number: DM300004-1
• Description: BOARD DEMO DSPICDEM.NET 1
• Manufacturer: Microchip Technology
• Series: dsPIC™r
• Type: Microcontrollerr

Specifications of DM300004-1

• Contents: *
• Mcu Supported Families: DsPIC30F
• Supported Devices: DsPIC30F6014
• For Use With: PIC30F5013
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: FCC/JATE PSTN, Ethernet NIC
• Lead Free Status / RoHS Status: na, Lead free / RoHS Compliant
• Other names: DM300004-1R; DM300004-1R

PICDEM.net™ 1 and dsPICDEM.net 2 Connectivity Dev Board User’s Guide
DS51471A-page 82
6.8.1
The dsPIC30F Soft Modem has undergone extensive testing to ensure ITU-T
compliance and robust system operation. During performance and interoperability
testing, the reference modems listed in Table 6-3 were used in both the originate and
answer modes while communicating with the dsPIC30F Soft Modem on the
dsPICDEM.net Connectivity Board.
TABLE 6-3:
6.8.2
Currently the dsPIC30F Soft Modem falls back to other modulations only through V.8
handshake. Therefore the dsPIC30F Soft Modem will not be able to establish a
connection in any DP modulation mode with reference modems that do not support the
V.8 handshake.
For example, D-Link and Zoom reference modems do not support the V.23 modulation
selection through V.8 handshake when they are in originating mode. Therefore the
dsPIC30F Soft Modem in answer mode will not be able to establish a V.23 connection
with these reference modems. However in answer mode, these reference modems do
support the falling back to V.23 modulations through V.8 handshake. Therefore the
dsPIC30F Soft Modem in originate mode is able to establish a V.23 connection with
these reference modems.
6.8.3
By default, the dsPIC30F Soft Modem uses hardware flow control for data transfer. The
dsPIC30F Soft Modem uses the UART flow control pins (RTS & CTS) on the
dsPICDEM.net connectivity board. This configuration requires that a two-position shunt
be installed in the vertical position on jumpers J17 and J19. Also, it is necessary to
enable the hardware flow control in HyperTerminal (or other terminal emulation
program running on the PC).
It is possible to change the flow control mode of the dsPIC30F Soft Modem to Xon/Xoff
by using a specific AT command (AT&Kn) and selecting a corresponding flow control
mode in the HyperTerminal.
U.S. Robotics
U.S. Robotics
U.S. Robotics
Zoom
Zoom
D-Link
D-Link
3Com
Reference Modem
Standard Reference Modems
ITU-T V.8 Support
Data Flow Control
REFERENCE MODEMS
DMF-560/ES
DMF-336/E
455630-01
98117203
Model
5686E
2949
3049
0839
External V.90/V.92 56k Fax/Modem
External Sportster 33.6 Fax/Modem
External Sportster Voice 33.6 Fax/Modem
External V.90 Fax/Modem
External V.92 Fax/Modem
External 33.6 Fax/Modem
External 56k Data/Fax/Voice Modem
External 56k Fax/Modem
Description
 2004 Microchip Technology Inc.