NIM Primitives
4-11
TIWAY 1 Ti505 NIM User Manual
Data Element Location — Data element types are accessed by a location address, desig-
nated by “AAAA” or “AAAA AAAA”. In the Series 505 NIM, the location descriptor is a
16-bit value (32 bits if extended addressing is used in the Primitive code field). The allow-
able values for the data element location are from 1 to the maximum values shown in
Table 5.
For TT Type 12 (Drum Count Preset) the format changes slightly. The format of the
AAAA field for this type is:
AAAA = DD SS,
AAAA AAAA = DDDD SSSS (if using extended addressing)
where
DD = Drum Number
SS = Step Number (1 – 10
)
4.5.5
Basic Data Unit – DDDD
The definition of the Basic Data Unit Field is dependent upon the data element type spe-
cified in both the Descriptor Field and the Primitive format definition. The Basic Data
Unit is designated “DDDD” or “DD” in this manual.
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