CMX208S1 View Datasheet(PDF) - MX-COM Inc
Part Name
Description
MFG CO.
'CMX208S1' PDF : 22 Pages View PDF
ISDN Dual Telephony Protocol Engine
16
CMX208 Advance Information
5. Application Notes
5.1 General
The CMX208 is intended for use as part of an ISDN chipset. The MX-COM recommended hardware
implementation contains the following elements (refer to Figure 3):
• ‘S’ bus interface via RJ45 socket.
• RJ11 analog telephone sockets and analog circuitry.
• ISDN line transformer.
• AMD79C30 S-interface controller.
• Auxiliary Motorola MC145480 PCM codec.
• 64K bytes external RAM.
• 16K Non-volatile memory.
• Six processor controlled LED indicator signals.
• HDLC drivers for the 2 ISDN B-channels, both channels can be used for data transfer.
12V
50V
MOTOROLA
MC34063A 5V
MC7805CT
PSU
IOM2
BUS
HY 6281009
128K RAM
5 x Interface ICs
PARALLEL BUS
24C16
16K EEPROM
I2C
BUS
TC 1232CO
WATCHDOG
10 x LEDS
31909x029
AMD AM79C30
MOTOROLA
CMX208
S/T
S/T CONTROLLER & PCM CODEC
MC145480
PCM CODEC
4K RAM 128K ROM
API
port
TRANSFORMER
FIFO & DLC Tx DTMF,RING,TONES
PROTOCOL ENGINE
DISCRETE
POTS 1 SLIC
DISCRETE
POTS 2 SLIC
CMX605
RxDTMF
TxCLID,SPM
RING & TONES
C-BUS
POTS
port
POTS
port
CMX605
RxDTMF
TxCLID,SPM
RING & TONES
C-BUS
Figure 3: Application Block Diagram
5.2 Approvals
The firmware and finite state machine embedded in the CMX208 has been designed into products that have
gained ETSI CTR3 approval.
MX-COM, Inc
4800 Bethania Station Road, Winston-Salem, NC, 27105-1201, USA
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
All trademarks and service marks are held by their respective companies
2000 MX-COM, Inc.
Doc. # 20480214.001
2000 Chiron Technology Limited
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