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Tews Technologies TIP255, Руководство пользователя

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Tews Technologies TIP255 Скачать руководство пользователя страница 3

 

 

TIP255 User Manual Issue 1.0.6 

Page 3 of 13 

 

Issue Description 

Date 

1.0 

First Issue 

February 2002 

1.1 

New Module Revision B 

March 2002 

1.2 

New Module Revision C 

October 2003 

1.3 

Added Security Warning (Lithium Battery) 

August 2004 

1.4 

New Module Version TIP255-10-ET 

April 2005 

1.5 

New address TEWS LLC 

September 2006 

1.0.6 

New User Manual Issue Notation 

September 2009 

Содержание TIP255

Страница 1: ...tes SRAM Memory with Battery Backup Version 1 0 Revision C User Manual Issue 1 0 6 September 2009 TEWS TECHNOLOGIES GmbH Am Bahnhof 7 25469 Halstenbek Germany Phone 49 0 4101 4058 0 Fax 49 0 4101 4058...

Страница 2: ...GmbH reserves the right to change the product described in this document at any time without notice TEWS TECHNOLOGIES GmbH is not liable for any damage arising out of the application or use of the dev...

Страница 3: ...February 2002 1 1 New Module Revision B March 2002 1 2 New Module Revision C October 2003 1 3 Added Security Warning Lithium Battery August 2004 1 4 New Module Version TIP255 10 ET April 2005 1 5 New...

Страница 4: ...M CONTENTS 8 4 IP ADDRESSING 9 4 1 I O Addressing 9 4 1 1 SRAM Control Register CR 9 4 1 2 SRAM Status Register SR 9 4 1 3 Interrupt Vector Register INTVEC 10 4 2 Memory Addressing 10 5 MODULE INSTALL...

Страница 5: ...E 1 1 BLOCK DIAGRAM 6 FIGURE 5 1 JUMPER CONFIGURATION 12 List of Tables TABLE 2 1 TECHNICAL SPECIFICATION 7 TABLE 3 1 ID PROM CONTENTS 8 TABLE 4 1 REGISTER SET 9 TABLE 4 2 SRAM CONTROL REGISTER CR 9 T...

Страница 6: ...to the battery if the 5V drop below the threshold level of the battery monitor device At this point any active access to the SRAM s is executed correctly within 1 5 s After this time further accesses...

Страница 7: ...tery On Board Battery Type CR2430 Lithium Cell 285mAh capacity Battery Fault Voltage 2 6V typical Battery Lifetime caused by self discharching effects 25 C approx 8 years 45 C approx 4 years Battery C...

Страница 8: ...CONTENTS 0x01 ASCII I 49 0x03 ASCII P 50 0x05 ASCII A 41 0x07 ASCII C 43 0x09 Manufacturer ID B3 0x0B Model Number 31 0x0D Revision 10 0x0F RESERVED 00 0x11 Driver ID Low Byte 00 0x13 Driver ID High B...

Страница 9: ...1 an interrupt is always initiated whenever the battery voltage falls below the reference voltage of the nonvolatile SRAM controller Vref 2 6V typical R W Table 4 2 SRAM Control Register CR 4 1 2 SRAM...

Страница 10: ...are with the desired interrupt vector value when interrupts shall be used A reset will set the INTVEC to the default value of 0x00 4 2 Memory Addressing Access to the TIP255 SRAM is simply done by rea...

Страница 11: ...e equipment with the correct polarity and Do not use metallic or other conductive extraction tools to replace the batteries Do not attempt to revive used batteries by heating charging or other means D...

Страница 12: ...r With the default jumper configuration the battery backup support of the TIP255 is now active If the battery support of the TIP255 is not used jumper J1 must be switched to position 1 2 5 2 1 Jumper...

Страница 13: ...1 GND 26 GND 2 CLK 27 5V 3 Reset 28 R W 4 D0 29 IDSel 5 D1 30 DMAReq0 6 D2 31 MemSel 7 D3 32 DMAReq1 8 D4 33 IntSel 9 D5 34 DMAAck 10 D6 35 IOSel 11 D7 36 Reserved 12 D8 37 A1 13 D9 38 DMAEnd 14 D10...

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