MC68030RC50C Freescale Semiconductor, MC68030RC50C Datasheet - Page 73

• Manufacturer Part Number: MC68030RC50C
• Description: IC MPU 32BIT ENHANCED 128-PGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68030RC50C

• Processor Type: M680x0 32-Bit
• Speed: 50MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 128-PGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

2
2-28
The outer displacement (od) available in the memory indirect modes is added
to the pointer in memory. The syntax for these modes is ([bd,An],Xn,od) and
five basic forms:
and the outer displacement is the offset of an item in the structure, the
memory indirect modes can access the item efficiently (refer to Figure 2-9).
Memory indirect addressing modes are used with a base displacement in
([bd,An,Xn],od). When the pointer is the address of a structure in memory
3. ([bd,An],Xn) - - Postindexed indirect
4. ([bd,An,Xn],od) - - Preindexed indirect with outer displacement
2. ([bd,An,Xn]) - - Preindexed indirect
5. ([bd,An],Xn,od) - - Postindexed indirect with outer displacement
1. [bd,An] - - I n d i r e c t , suppressed index register
An ~
Figure 2-9, Accessing an Item in a Structure Using Pointer
Figure 2-8. Using Indirect Absolute Memory Addressing
z.
MC68030 USER'S MANUAL
MEMORY
POINTER
SYNTAX: ([An],od)
SYNTAX: ([bd])
~
L
STRUCTURE
DATA ITEM
od
MOTOROLA