Multi-tech-systems Modem Module MT3334SMI Uživatelský manuál stáhnout pdf (Strana 70)

ModemModule Developer’s Guide

MT3334SMI70

Extended Address Record

Char Pos Field Type Value Description

1 Record Start “:”

2-3 Data Byte Count “02 Always 2 bytes for this record type

4-7 Address “0000” Not used for this record type (must be zero)

8-9 Record Type “02” Extended Address Record

10-13 Extended Address “EEEE” Top 16 bits of 20 bit address, most

significant byte first

14-15 Checksum “ZZ” Zero minus the two’s complement addition

of all data hex values

16-17 End of Line “\r\n” Carriage Return followed by a Line Feed

Example Extended Address Record in Intel Format

:020000021000EC

End of File Record

Char Pos Field Type Value Description

1 Record Start “:”

2-3 Data Byte Count “00” Always 2 bytes for this record type

4-7 Address “0000” Transfer Address (usually be zero)

8-9 Record Type “01” End of File Record

10-11 Checksum “ZZ” Zero minus the two’s complement addition

of all data hex values

12-13 End of Line “\r\n” Carriage Return followed by a Line Feed

Example End of File in Intel Format

:00000001FF

1 2 ... 65 66 67 68 69 70 71 72 73 74

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Multi-tech-systems Modem Module MT3334SMI Uživatelský manuál Strana 70