vi DS2208 Digital Scanner Product Reference Guide
TGCS (IBM) USB Direct I/O Beep ......................................................................................... 6-16
TGCS (IBM) USB Beep Directive ........................................................................................... 6-17
TGCS (IBM) USB Bar Code Configuration Directive ............................................................. 6-17
TGCS (IBM) USB Specification Version ................................................................................ 6-18
ASCII Character Sets for USB ..................................................................................................... 6-18
Chapter 7: SSI Interface
Introduction .................................................................................................................................... 7-1
Communication .............................................................................................................................. 7-1
SSI Transactions ............................................................................................................................ 7-3
General Data Transactions ...................................................................................................... 7-3
Decoded Data Transmission .................................................................................................... 7-4
Communication Summary .............................................................................................................. 7-6
RTS/CTS Lines ........................................................................................................................ 7-6
ACK/NAK Option ...................................................................................................................... 7-6
Number of Data Bits ................................................................................................................. 7-6
Serial Response Timeout ......................................................................................................... 7-6
Retries ...................................................................................................................................... 7-6
Baud Rate, Stop Bits, Parity, Response Timeout, ACK/NAK Handshaking ............................. 7-6
Errors ....................................................................................................................................... 7-6
SSI Communication Notes ....................................................................................................... 7-7
Using Time Delay to Low Power Mode with SSI ............................................................................ 7-7
Encapsulation of RSM Commands/Responses over SSI .............................................................. 7-8
Command Structure ................................................................................................................. 7-8
Response Structure ................................................................................................................. 7-8
Example Transaction ............................................................................................................... 7-9
Setting Parameters ..................................................................................................................... 7-10
Scanning Sequence Examples .............................................................................................. 7-10
Errors While Scanning ........................................................................................................... 7-10
Simple Serial Interface Parameter Defaults ................................................................................. 7-11
SSI Host Parameters ................................................................................................................... 7-12
Select SSI Host ...................................................................................................................... 7-12
Baud Rate .............................................................................................................................. 7-12
Parity ...................................................................................................................................... 7-14
Check Parity ........................................................................................................................... 7-15
Stop Bits ................................................................................................................................. 7-15
Software Handshaking ........................................................................................................... 7-16
Host RTS Line State .............................................................................................................. 7-17
Decode Data Packet Format .................................................................................................. 7-17
Host Serial Response Timeout .............................................................................................. 7-18
Host Character Timeout ......................................................................................................... 7-19
Multipacket Option ................................................................................................................. 7-20
Interpacket Delay ................................................................................................................... 7-21
Event Reporting ........................................................................................................................... 7-22
Decode Event ......................................................................................................................... 7-22
Boot Up Event ........................................................................................................................ 7-23
Parameter Event .................................................................................................................... 7-23
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