Citizen Systems CBM-910 manual Error Detection, Receiving Control and Buffering

Page 33

6.5Error Detection

●Communication error

• Parity error

Parity error occurs when parity check is specified and parity is not observed in the even and odd parity checks.

• Framing error

When space state detected on detection of stop bit.

• Overrun error

When next following data having been transferred to receiving buffer register regardless of presence of data in that receiving buffer register.

RECEIVING CONTROL AND BUFFERING

This equipment controls, on receipt of print data, receiving (DTR Control) in one-word unit. If the host disregards DTR and carries out data transmission at this time, over- run of receiving data may be resulted. This state should be avoided on the host’s responsibility. (The data discharging type host cannot follow this.) This is applicable when the host adopts a double buffer type transmitter.

— 30 —

Image 33

Contents CBM-910 Type CE Marking Declaration of Conformity Compliance Statements General Precautions Safety Precautions -WHICH should be Strictly Observed Page Precautions for Installation Precautions for Handling Table of Contents External Dimensions Features AccessoriesIntroduction Type Classifications TypeAC Adapter CBM-910II-24 CBM-910II-40 SpecificationsExternal Appearance External Appearance and Part DescriptionsOFF Part DescriptionsConnection of the AC Adapter OperationsSetting of the Printer Cover Setting Ribbon Cassettes Setting Paper Special Remarks Concerning Paper Self-Printing Function Japan 910JPN Memory Switch SettingUSA = U.S.A Paper-Near-End, Mechanical Alarm, Memory Error General Remarks Connector Pin Assignment Pin Signal NameParallel Interface Description of Input/Output Signals Electrical Characteristics Serial Interface Host-Printer Pin Signal Name Signal Direction Function RS-232CDTR Data Terminal Ready Description of Input/Output SignalTTL circuit Input Reset Receiving Control and Buffering Error DetectionSwitch No Function DIP Switch SettingFactory Setting Switch No Parity Baud Rate Factory SettingParallel Interface Type Symbol Code Function CBM910 IDP3110 Hexadecimal Print Control FunctionList of Control Codes Control Code Details Abcd Page Character Code Table CountryESC Page FF FF FF FF FF FF For 40-column model 3110 emulation Page Model 123 CR Function Content of Setting Ascii + 910 Emulation International 910 Emulation Japan Character Code TableCodepage PC437 USA, Standard Europe Katakana Codepage PC858 Multilingual Codepage PC860 Portuguese Codepage PC863 Canadian-French Codepage PC865 Nordic Codepage PC852 Eastern Europe Codepage PC866 Russian Codepage PC857 Turkish Codepage WPC1252 Windows Latin1 Codepage PC864 Arabic Codepage PC869 Greek International Character Code Table External Dimensions Page