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Table of Contents

Bt8960

Bt8960EVM Hardware User’s Guide

iv

Conexant

100188B

Conexant Proprietary and Confidential

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

10

Layout Considerations

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Appendix A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Schematics, Layout Drawings and BOMs

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Sales Offices

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Содержание Bt8960

Страница 1: ...Bt8960 Hardware User s Guide 100188B November 2000 ...

Страница 2: ...NFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT CONEXANT FURTHER DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION TEXT GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS CONEXANT SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING WITHOUT LIMITATION LOST REVENUES OR LOST PROFITS WHICH MAY RESULT FROM THE USE OF T...

Страница 3: ...on 2 Setup Instructions 3 Basic Setup 3 UIP Quick Start 5 Recommended Equipment 5 Line Simulator 5 Communications Analyzer Bit Error Rate Detector 6 Personal Computer optional 6 Functional Description 6 Interface Descriptions 7 Line Interface J1 J2 7 Connectors 7 Prototyping Provisions 7 Power Supply Line Card Configuration Interface J3 7 Remote Local Unit Configuration pin 3 7 RS 232 Interface J4...

Страница 4: ...t8960 Bt8960EVM Hardware User s Guide iv Conexant 100188B Conexant Proprietary and Confidential Status LEDs 10 Line Card ID 10 Layout Considerations 10 Appendix A 11 Schematics Layout Drawings and BOMs 11 Sales Offices 13 ...

Страница 5: ...es Bt8960EVM Hardware User s Guide 100188B Conexant v Conexant Proprietary and Confidential List of Figures Figure 1 Loop Performance Test Remote Unit Setup C to R 3 Figure 2 Detail A for Page 1 of the Bt8960 Schematic 11 ...

Страница 6: ...List of Figures Bt8960 Bt8960EVM Hardware User s Guide vi Conexant 100188B Conexant Proprietary and Confidential ...

Страница 7: ...t of Tables Bt8960EVM Hardware User s Guide 100188B Conexant vii Conexant Proprietary and Confidential List of Tables Table 1 Line Card ID Definition 2 Table 2 8960 Line Card Test Point 8 Table 3 Memory Mapping 9 ...

Страница 8: ...List of Tables Bt8960 Bt8960EVM Hardware User s Guide viii Conexant 100188B Conexant Proprietary and Confidential ...

Страница 9: ...s quickly as possible Important Information Bt8960EVM Contents The Bt8960 Evaluation System Hardware User s Guide is one part of the Bt8960EVM package If you have ordered the Bt8960EVM please review the Bt8960EVM Contents List to ensure that you have received all of the items on the list Software This user s guide covers the operation and design of the Bt8960EVM It does not describe the software c...

Страница 10: ...for more information on how to modify the line card for different data rates Each line card in the system also contains a line card ID which is set by five 0 ohm resistors R39 to R43 see the 8960EVM line card schematic in appendix A These resistors may need to be modified so the EVM software is configured for the correct data rate The line card ID is defined according to Table 1 Ordering Informati...

Страница 11: ...signates the remote unit line interface card It is also referred to as the HTU R or NTU Figure 1 Loop Performance Test Remote Unit Setup C to R Tx Ext Tx CLK Data Rx Data Rx CLK Bit Error Rate Detector B A Wireline Simulator 8960EVM Line Card J8 TDAT IN J7 QCLK Out J6 RDAT OUT J5 BCLK OUT J4 RS 232 J3 Power J1 or J2 Line To PC COM1 Optional 5 Volt Power Supply Provided To PC COM2 Optional On Off 8...

Страница 12: ...re the polarity is the same at each line interface card If the polarity is reversed i e tip ring reversal the 8960EVM will start up but the Bit Error Rate Detector may not synchronize The wireline simulator can also be bypassed by connecting J1 or J2 on the C line interface card directly to J1 or J2 on the R line interface card c Power Supply Connection Connect the power supply as shown Make sure ...

Страница 13: ...e EVM line cards J4 are connected to COM1 for the central unit and COM2 for the remote unit on the PC Also verify the UIP is installed on the PC according to the instructions on the UIP installation disk and in the UIP User s Guide 2 In the UIP directory type 8960EVM and press enter 3 The UIP will default to the EVM Configuration form BT8960 should be displayed in column 1 of the Bitpump Type fiel...

Страница 14: ...the Interface Descriptions section Power Supply Assembly The power supply assembly consists of a universal 5 volt power supply and the associated cabling In addition to providing 5 volt power and ground the power supply assembly also provides a signal to each 8960 line card which determines if the line card will be configured as a local unit HTU C LTU or a remote unit HTU R NTU The power connector...

Страница 15: ...r supplied by an alternative source if desired If power is supplied though these test points be sure to remove the mating connector from J3 because the cable connected to J3 will create a short between power and ground when the power switch on the power box is in the OFF position Two large capacitors C11 C12 and a transorb CR4 provide a steady 5 volt power rail and protect circuits on the line car...

Страница 16: ...can be driven by a typical CMOS driver After these signals are buffered they connect to the channel unit interface section of the Bt8960 See the Bt8960 datasheet for details on the channel unit interface timing and functionality Test points are provided for all of the Bt8960 channel unit interface signals so that the signals can be connected to a customized framer if desired Prototype space is als...

Страница 17: ...ns 256 bytes of internal RAM No external RAM is provided The upper address line of the 80C32 processor ADDR15 is used as chip select for the Bt8960 device The memory is mapped according to Table 3 TP13 RING circuit side TP14 GND TP15 RDAT buffered TP16 TCK JTAG TP17 TMS JTAG TP18 TDI JTAG TP19 TDO JTAG TP20 TBCLK TP21 RBCLK TP22 TQ0 buffered TP23 5V TP24 QCLK buffered TP25 TDAT buffered Table 2 89...

Страница 18: ...ded to the 80C32 to indicate the ID of the line card to the EVM software They are connect to Port 1 of the 80C32 See Table 1 for a description of the line card ID values Layout Considerations The Bt8960 line card analog and digital power and ground planes are isolated from each other The analog and digital planes are connected at a single point under the Bt8960 device Voltage bypass and compensati...

Страница 19: ...d on the following pages Figure 2 Detail A for Page 1 of the Bt8960 Schematic NOTE S Please note above changes for your design SEROUT T1IN T2IN R1IN R2IN C1P C1M VM1 VM2 VP T1OUT T2OUT R1OUT R2OUT C2P1 C2P2 C2M1 C2M2 VCC GND1 GND2 6 9 MAX233 SERIN CC C30 1UF 5V U4 5 18 3 20 12 15 11 16 2 1 4 19 13 14 10 17 8 3 2 7 8 4 6 1 9 5 TX RX RTS CTS DTR DSR DCD RI GND J4 DSUB 100188_002 ...

Страница 20: ...Appendix A Bt8960 Schematics Layout Drawings and BOMs Bt8960EVM Hardware User s Guide 12 Conexant 100188B Conexant Proprietary and Confidential ...

Страница 21: ...84 Fax 215 244 9292 Canada Ontario Phone 613 271 2358 Fax 613 271 2359 Europe Europe Central Germany Phone 49 89 829 1320 Fax 49 89 834 2734 Europe North England Phone 44 1344 486444 Fax 44 1344 486555 Europe Israel Greece Phone 972 9 9524000 Fax 972 9 9573732 Europe South France Phone 33 1 41 44 36 51 Fax 33 1 41 44 36 90 Europe Mediterranean Italy Phone 39 02 93179911 Fax 39 02 93179913 Europe S...

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