MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 51

• Manufacturer Part Number: MC68EC000EI20
• Description: IC MPU 32BIT 20MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC000EI20

• Processor Type: M680x0 32-Bit
• Speed: 20MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

Addressing Capabilities
2.2.8 Address Register Indirect with Index (Base Displacement) Mode
This addressing mode requires an index register indicator and an optional 16- or 32-bit sign-
extended base displacement. The index register indicator includes size and scaling
information. The operand is in memory. The operand’s address is the sum of the contents of
the address register, the base displacement, and the scaled contents of the sign-extended
index register.
In this mode, the address register, the index register, and the displacement are all optional.
The effective address is zero if there is no specification. This mode provides a data register
indirect address when there is no specific address register and the index register is a data
register.
2-10
GENERATION:
ASSEMBLER SYNTAX:
EA MODE FIELD:
EA REGISTER FIELD:
NUMBER OF EXTENSION WORDS:
ADDRESS REGISTER
BASE DISPLACEMENT
INDEX REGISTER
SCALE
OPERAND POINTER
MEMORY
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
31
31
EA = (An) + (Xn) + bd
(bd,An,Xn.SIZE*SCALE)
110
REG. NO.
1,2, OR 3
SIGN-EXTENDED VALUE
SIGN-EXTENDED VALUE
.
31
31
SCALE VALUE
0
0
CONTENTS
CONTENTS
OPERAND
POINTS TO
X
+
+
MOTOROLA
0
0