AM3270 Management Programming Manual
 ELEMENTS OF SPI MESSAGES FOR THE SUBSYSTEMS
 Tokens
 Extensible Structured Tokens
 Extensible structured tokens--tokens whose values are extensible
 structures--are identified by special token codes called token
 maps. The structures are defined in a DDL definition associated
 with each token map. The token maps for the extensible
 structured tokens used by the AM3270 subsystem are represented
 by symbolic names of the form Z
subsys
-MAP-
name
, where 
subsys
 is a three-character subsystem abbreviation and 
name
 identifies
 the token map. For example, the token map ZAM3-MAP-INFO-SU
 identifies an extensible structured token that contains all the
 configuration parameters for a subdevice.
 All AM3270 commands can contain extensible structured tokens
 and all of the commands contain the ZCOM-MAP-REQID token map.
 Currently, only the ADD and ALTER commands use extensible
 structured tokens defined by the AM3270 subsystem within the
 command buffer. These extensible structured tokens are declared
 in the definition files for the AM3270 subsystem. Note that
 extensible structured tokens do not appear in any event message
 issued by the AM3270 subsystem.
 Responses to the following AM3270 commands can contain extensible
 structured tokens:
 INFO
 RESETSTATS
 STATISTICS
 STATUS
 Token Types
 The token types used by the AM3270 subsystem are represented by
 symbolic names of the form Z
subsys
-TYP-
name
, where 
subsys
 is a
 three-character subsystem abbreviation and 
name
 identifies the
 token type. The token types used by the AM3270 subsystem are as
 follows:
 ZSPI-TYP-BOOLEAN ZSPI-TYP-INT
 ZSPI-TYP-BYTE ZSPI-TYP-INT-PAIR
 ZSPI-TYP-BYTE-PAIR ZSPI-TYP-INT2
 ZSPI-TYP-BYTESTRING ZSPI-TYP-INT4
 ZSPI-TYP-CHAR ZSPI-TYP-LIST
 ZSPI-TYP-CHAR8 ZSPI-TYP-MARK
 ZSPI-TYP-CHAR50 ZSPI-TYP-SSCTL
 ZSPI-TYP-CRTPID ZSPI-TYP-SSID
 ZSPI-TYP-ENUM ZSPI-TYP-STRING
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