scsi interface specification - Plasmon

LASER-DRIVE SCSI CHARACTERISTICS MESSAGE SYSTEM SPECIFICATIONExtended Message 01HThis message is sent from either the Initiator or the LaserDrive as the first byte of a multiple-byte message.The LaserDrive supports only the SYNCHRONOUS DATA TRANSFER REQUEST (SDTR) extendedmessages. Refer to the SDTR message section.HEXCODEDESCRIPTION(1) Synchronous Data Transfer Request onlyTable 1. Message CodesDIRECTION(2) SCSI Bus Disconnect/Reconnect(3) Data Transfer Retries(4) All message system activity, including the features listed in these notesDRIVESENDSDRIVEACCEPTSINITIATORSUPPORT00 COMMAND COMPLETE In Yes N.A. M01 EXTENDED MESSAGE (1) In Out Yes Yes --02 SAVE DATA POINTER In Yes N.A. 0 (2)03 RESTORE POINTERS In Yes N.A. 0 (3)04 DISCONNECT In Out Yes No 0(2)05 INITIATOR DETECTED ERROR Out N.A. Yes 006 ABORT Out N.A. Yes 007 MESSAGE REJECT In Out Yes Yes 0(3)08 NO OPERATION Out N.A. Yes 0 (4)09 MESSAGE PARITY ERROR Out N.A. Yes 0(4)0A LINKED COMMAND COMPLETE In No N.A. --0BLINKED COMMAND COMPLETEWITH FLAGIn No N.A --0C BUS DEVICE RESET Out N.A. Yes 00D ABORT TAG Out N.A. No --0E CLEAR QUEUE Out N.A. No --0F INITIATE RECOVERY In Out No No --10 RELEASE RECOVERY Out N.A. No --11 TERMINATE I/O PROCESS Out No Yes 012 - 1F RESERVED -- -- No N.A. --20 SIMPLE QUEUE TAG In Out No No 021 HEAD OF QUEUE TAG Out No No 022 ORDERED QUEUE TAG Out No No 023 IGNORE WIDE RESIDUE In No N.A. 024 - 2F RESERVED FOR 2-BYTEMESSAGE-- No No --30 - 7F RESERVED -- No N.A. --80 - FF IDENTIFY In Out Yes Yes 0(2)(3)Key:M = Mandatory SupportIn = LaserDrive to Initiator0 = Optional SupportOut = Initiator toLaserDriveInitiator support of the indicated messages is required if any of the following SCSI features are to be used.N.A. = Not ApplicablePLASMON L M S - LD 6100/LF 6600/LF 6602 SCSI INTERFACE SPECIFICATIONPage 12