NS32FX164AV-25 National Semiconductor, NS32FX164AV-25 Datasheet - Page 13

• Manufacturer Part Number: NS32FX164AV-25
• Description: IC IMAGING COMM SGNL PROC PLCC68
• Manufacturer: National Semiconductor

Specifications of NS32FX164AV-25

• Processor Type: Advanced Imaging/Communications Signal Processor SIAP™
• Speed: 50MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Other names: *NS32FX164AV-25; Q1284286

2 0 Architectural Description
Following Index Bytes come any displacements (addressing
constants) or immediate values associated with the select-
ed addressing modes Each Disp lmm field may contain
one of two displacements or one immediate value The size
of a Displacement field is encoded within the top bits of that
field as shown in Figure 2-19 with the remaining bits inter-
preted as a signed (two’s complement) value The size of an
immediate value is determined from the Opcode field Both
Displacement and Immediate fields are stored most-signifi-
cant byte first Note that this is different from the memory
representation of data (Section 2 2)
Note Dashed lines indicate information copied to register during transfer of control between modules
FIGURE 2-16 NS32FX164 Run-Time Environment
FIGURE 2-17 General Instruction Format
(Continued)
13
Some instructions require additional ‘‘implied’’ immediates
and or displacements apart from those associated with ad-
dressing modes Any such extensions appear at the end of
the instruction in the order that they appear within the list of
operands in the instruction definition (Section 2 4 3)
FIGURE 2-18 Index Byte Format
TL EE 11267– 3
TL EE 11267– 2
TL EE 11267 – 4