MC68030RC50C Freescale Semiconductor, MC68030RC50C Datasheet - Page 62

• 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: -

2.4.13 Program Counter Indirect with Index (Base Displacement) Mode
MOTOROLA
This mode is similar to the address register indirect with index (base dis-
sum of the contents of the PC, the scaled contents of the sign-extended index
the first extension word. The reference is a program space reference and is
taken for the PC) to indicate that the PC is not used. This allows the user to
address. The user can access the program space with a data register indirect
placement) mode described in 2.4.8 Address Register Indirect with Index
(Base Displacement) Mode, but the PC is used as the base register. It requires
an index register indicator and an optional 16- or 32-bit sign-extended base
displacement. The operand is in memory, The address of the operand is the
register, and the base displacement. The value of the PC is the address of
only allowed for reads (refer to 4.2 ADDRESS SPACE TYPES).
In this mode, the PC, the index register, and the displacement are all optional.
However, the user must supply the assembler notation "ZPC" (zero value is
access the program space without using the PC in calculating the effective
access by placing ZPC in the instruction and specifying a data register (Dn)
as the index register.
GENERATION:
ASSEMBLER SYNTAX:
MODE:
REGISTER:
PROGRAM COUNTER:
BASE DISPLACEMENT: 1
INDEX REGISTER:
SCALE:
MEMORY ADDRESS:
NUMBER OF EXTENSION WORDS:
L,
31
31
EA = (PC) + (Xn) + bd
(bd, PC, Xn,SIZE *SCALE)
011
111
.1.2, 0B 3
MC68030 USER'S MANUAL
SIGN E X T E N D E D V A L U E
SIGN E X T E N D E D VALUE
I
SCALE VALUE
. ~
I
31
31
D
ADD RE SS OF EXTENSION WORD
OPERAND
2-17
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