MC68030FE20C Freescale Semiconductor, MC68030FE20C Datasheet - Page 82

• Manufacturer Part Number: MC68030FE20C
• Description: IC MPU 32BIT ENHANCED 132-CQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68030FE20C

• Processor Type: M680x0 32-Bit
• Speed: 20MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-CQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

MOTOROLA
D/A:
W/L:
D/A:
W/L:
SCALE: O0 -
I 0jA I
I0jA I
MC68000/IVIC68008/IVIC68010 Address
Extension Word
NIC68020/MC68030 Address
Extension Word
term SSP (or A7) refers to the MSP address register. When M = 0 , the term
SSP (or A7) refers to the ISP address register. The active system stack pointer
system stack fills from high to low memory.
A subroutine call saves the program counter on the active system stack, and
the return restores it from the active system stack. During the processing of
traps and interrupts, both the program counter and the status register are
stack; conversely, user programs use the user stack pointer independently
To keep data on the system stack aligned for m a x i m u m efficiency, the active
mode. The term supervisor stack pointer (SSP) refers to the master or inter-
rupt stack pointers, depending on the state of the M bit. When M = 1, the
is implicitly referenced by all instructions that use the system stack. Each
saved on the supervisor stack (either master or interrupt). Thus, the execution
of supervisor code is independent of user code and the condition of the user
of supervisor stack requirements.
stack pointer is automatically decremented or incremented by two for all
byte-sized operands moved to or from the stack. In long-word-organized
15
15
0 = Data R e g i s t e r S e l e c t
01 -
0 - W o r d - S i z e d O p e r a t i o n
] - A d d r e s s R e g i s t e r S e l e c t
] = L o n g - W o r d - S i z e d O p e r a t i o n
10=
11 =
14
14
0 =
0 -
1 -
1 -
~EG,STER I W~L I 0 I 0 I 0 I
REG,STER I W~' I SOA'E I 0 I
Address Register Select
Word-Sized Operation
Scale Factor 1 (Compatible with MC68000)
Scale Factor 2 (Extension to MC68000)
Scale Factor 8 (Extension to MC68000)
Data Register Select
Long-Word-Sized Operation
Scale Factor 4 (Extension to MC68000)
Figure 2-15. M 6 8 0 0 0 F a m i l y A d d r e s s E x t e n s i o n W o r d s
12
12
11
11
MC68030 USER'S MANUAL
1(}
10
9
9
8
8
7
7
DISPLACEMENT INTEGER
DISPLACEMENT INTEGER
2-37
0
I
I