CMX208S1 MX-COM, Inc., CMX208S1 Datasheet

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CMX208S1

Manufacturer Part Number
CMX208S1
Description
ISDN dual telephony protocol engine
Manufacturer
MX-COM, Inc.
Datasheet
The CMX208 is an ISDN telephony protocol engine which implements the lower level ISDN interface and
communicates with the CMX605 and other standard devices to form a fully integrated ISDN chipset for voice
communications. The CMX208 puts all the main data processing elements in a single device. No ISDN
software has to be written and simple ‘Plug and Play’ design results. This reduces development time and
provides a highly cost-effective hardware solution. By using proven circuit designs, the designer can move
quickly from initial concept through design in to manufacture.
The CMX208 supports two voice ports over the ISDN Line, which can be used to provide ISDN telephony
services or POTS line interfaces, and has independent keypad-configuration of these services for each port.
The CMX208’s feature set and architecture allow most analog systems to be converted to an ISDN equivalent
with enhanced features.
The CMX208 is designed to work with the AMD 79C30 S/T bus interface, the Siemens PSB-21525 HDLC
formatter, the Motorola MC145480 PCM codec and the MX-COM CMX605 POTS interface circuit, and also
comes complete with embedded applications software. To support the CMX208, MX-COM can also provide
licensed reference designs on user request. A flexible Applications Program Interface (API) allows users to
customize the features and operation of their own design. The CMX208 is available in an 80-pin QFP
(CMX208S1) package.
1 The CMX208 is a data processor integrated circuit that supports the protocol layers 1, 2 and 3 of the ISDN protocol stack in accordance
with the specifications of CCITT (now ITU). These specifications, which are widely used around the world, might not be supported within
the U.S.
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
DATA BULLETIN
Features
Supports ITU Specifications
Supports Incoming and Outgoing Calls
Independent Port Configuration
Supports CTR3 Approval
Full API Available
COMMUNICATION ICs
CMX208
S/T Interface
Parallel BUS
AM79C30
Controller
S/T BUS
+ Codec
1
IOM2 BUS
DTMF Rx
DTMF Rx
CLI
CLI
CMX605
CMX605
Applications
Feature Phones
Pay-Phones
PABX Telephones
Reference Designs Available
PCM Codec
MC145480
Motorola
ISDN Dual Telephony
CMX208
Protocol Engine
2000 Chiron Technology Limited
Advance Information
S
L
C
I
S
C
L
I
A
B
A
B
POTS 1
POTS 2
Doc. # 20480214.001
2000 MX-COM, Inc.

Related parts for CMX208S1

CMX208S1 Summary of contents

Page 1

... A flexible Applications Program Interface (API) allows users to customize the features and operation of their own design. The CMX208 is available in an 80-pin QFP (CMX208S1) package. 1 The CMX208 is a data processor integrated circuit that supports the protocol layers 1, 2 and 3 of the ISDN protocol stack in accordance with the specifications of CCITT (now ITU) ...

Page 2

... Operating Limits ................................................................................................................... 17 6.1.3 Operating Characteristics..................................................................................................... 18 6.2 Packaging .......................................................................................................................... 22 MX-COM, Inc. reserves the right to change specifications at any time and without notice. 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 ...

Page 3

... All trademarks and service marks are held by their respective companies 3 Task Scheduler, Memory Manager, Timers and Task Mailing ISDN D-channel Protocol Stacks LED Status Indicator Figure 1: Block Diagram CMX208 Advance Information Auxiliary CODEC ISDN Interface Chip 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 4

... Memory and Peripheral Address Bus Memory and Peripheral Address Bus Memory and Peripheral Address and Data Bus Memory and Peripheral Address and Data Bus Memory and Peripheral Address and Data Bus CMX208 Advance Information Description 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 5

... The negative analog supply rail (ground) CMX605 C-BUS Interface (chip select POTS Port 1) CMX605 C-BUS Interface (chip select POTS Port 2) D/A Reference Voltage. Connect to AV D/A Reference Voltage. Connect to AV CMX208 Advance Information Description directly SS directly DD directly DD directly SS 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 6

... For manufacturer’s use only. Connect to DV For manufacturer’s use only. Connect not make any connection to this pin Table 1: Signal List CMX208 Advance Information Description directly SS directly DD directly DD directly DD directly DD 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 7

... 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 CMX208S1 Figure 2: CMX208 Pin-Out CMX208 Advance Information ILINE2 ILINE1 CLIP1 RING1 V ...

Page 8

... 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 8 CMX208 Advance Information 2000 Chiron Technology Limited 2000 MX-COM, Inc. Doc. # 20480214.001 ...

Page 9

... Receiver Not Ready Receiver Ready Ready to Send Set Asynchronous Balanced Mode Set Asynchronous Balanced Mode Extended Subscriber Line Interface Circuit Subscriber Pulse Metering Switched Virtual Circuit Terminal Endpoint Identifier CMX208 Advance Information 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 10

... All trademarks and service marks are held by their respective companies 10 RING , RING2 and 1 RING pins are set low. The 2 RING , RING2 and 1 RING pins are restored to their default 2 2000 Chiron Technology Limited CMX208 Advance Information 2000 MX-COM, Inc. Doc. # 20480214.001 ...

Page 11

... 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 11 CMX208 Advance Information 2000 Chiron Technology Limited 2000 MX-COM, Inc. Doc. # 20480214.001 ...

Page 12

... Layer 2 communications can be made. It then sets the ILFI pin accordingly. Resets all of the configuration variables back to their default values. CMX208 Advance Information Default N/A N/A Clear N/A UK N/A No channel map N/A Enabled N/A Disabled N/A Disabled N/A 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 13

... 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 13 CMX208 Advance Information 2000 Chiron Technology Limited 2000 MX-COM, Inc. Doc. # 20480214.001 ...

Page 14

... FFF 020 000 03F FFF 0C0 000 0EF FFF 0F0 000 0F0 0FF 0F0 100 0F0 1FF 0F0 200 0FF FFF 2000 Chiron Technology Limited 1633 A (not used) B (not used) C (not used) D (not used) 2000 MX-COM, Inc. Doc. # 20480214.001 ...

Page 15

... All trademarks and service marks are held by their respective companies 15 POTS port 1 Off-Hook ~ ~ ISDN Line Activated ISDN Line Activated Call Connected ISDN Line Failure Indicator ISDN Line Failure Indicator CMX208 Advance Information POTS port 2 ~ Off-Hook Call Connected ~ 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 16

... RxDTMF TxCLID,SPM POTS RING & TONES port C-BUS Figure 3: Application Block Diagram CMX208 Advance Information 24C16 TC 1232CO 10 x LEDS 16K EEPROM WATCHDOG BUS CMX208 API 4K RAM 128K ROM port PROTOCOL ENGINE 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 17

... SS -20 = 25°C AMB -55 -40 Notes - DV ), SS0 CMX208 Advance Information Max. Units 7 0 100 1300 mW 17 mW/°C above 25°C 125 °C 85 °C Min. Max. Units 2.7 5.5 V -40 85 °C -100 100 ppm 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 18

... OUT 31.2468 CMX208 Advance Information = - 40°C to +85°C. AMB Typ. Max. Units 25.0 45.0 mA 13.0 26 30% DD +10.0 µA V 400 mV 10 µA 125 ns 125 31.2531 ns 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 19

... All trademarks and service marks are held by their respective companies 19 t DSTID t HSTLA t DAID t t DSTR FRA t t DAR DRID t WRL t DSTOD t HSTLA t DSTW DAW DWOD SODW t WWL CMX208 Advance Information t DRST t HRA t HRID t DRA t DWST t HWA t HWOD 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 20

... All trademarks and service marks are held by their respective companies CLH CLL t t CLR CLF t CYCL t t WNIL WNIH t t WRSH WRSL t t WXH WXL CYK Figure 5: Miscellaneous Timing CMX208 Advance Information 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 21

... ( 2000 MX-COM, Inc. Doc. # 20480214.001 2000 Chiron Technology Limited ...

Page 22

... RST low-level width RST high-level width 6.2 Packaging Figure 6: 80-pin QFP Mechanical Outline: Order as part no. CMX208S1 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 ...

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