IBM 5280 Distributed Data System - Index of

Hex Length inDisplace: Bytes {inment Hex} DescriptionOOAO 4 Communications CCB pointer (one 4-byte block). The4-byte block has the following meaning:Byte 0Bit(s) / Meaning When 10 The CCB pointer is valid for use by thecommunications feature.1 The CCB pointer is available for CAM use.2 The CAM load parameter list is located atthe address specified in bytes 1 and 2.3 The CAM is loaded and ready to acceptcommands from the application program.4-7 The partition number of the partition thatinitiated the loading of CAM.Byte 1When bits 0 or 1 of byte 0 = 1, this bytecontains the high-order byte of the CCBaddress (relative to the beginning of thepage). When bit 2 of byte 0 = 1, this bytecontains the page number of the loadparameter list.Byte 2Bit(s)Meaning0-3 System use only.4-7 When bit 1 of byte 0 = 1, this byte containsthe page number of the CCB storage location.When bit 2 of byte 0 = 1, this byte containsthe high-order byte of the address of the loadparameter list.Byte 3Hexadecimal F F if the communicationsmicroprocessor is installed.00A8 10 System use only.30