MC68030CRC33C Freescale Semiconductor, MC68030CRC33C Datasheet - Page 376
MC68030CRC33C
Manufacturer Part Number
MC68030CRC33C
Description
IC MPU 32BIT ENHANCED 128-PGA
Manufacturer
Freescale Semiconductor
Specifications of MC68030CRC33C
Processor Type
M680x0 32-Bit
Speed
33MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
128-PGA
Family Name
M68000
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
33MHz
Instruction Set Architecture
RISC
Supply Voltage 1 (typ)
5V
Operating Supply Voltage (max)
5.25V
Operating Supply Voltage (min)
4.75V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Through Hole
Pin Count
128
Package Type
PGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Compliant
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M O T O R O L A
tine. They use physical addresses.
With physical m e m o r y allocation provided for, the operating system must
address translation tables. Typically, this type of routine allocates pieces of
certain sizes. GetReal is the allocation routine; ReturnReal is the return rou-
be able to manage virtual m e m o r y for all tasks. To do this, the system must
be aware of the virtual m e m o r y map. It must k n o w the total a m o u n t of virtual
m e m o r y space, h o w much is allocated, and which areas are available to be
assigned to tasks. The virtual m e m o r y map looks like this:
Virtual addresses for this virtual m e m o r y are subdivided:
I
x -- Ignored (3 bits)
u -- Upper level index (5 bits), maps 32 long-table entries
31
(-- Lower level index (11 bitsJ, maps 2048 short-page entries
x x x u
LOW MEMORY
uuuu
528M
16M
2M
3M
1M
M C 6 8 0 3 0 USER'S M A N U A L
0
IIII
IIII
USER PROGRAM/DATA/STACK
(LOGICAL = PHYSICAL)
DIRECT MAPPED
HARDWARE I/0
OS KERNEL
UNUSED
(496M)
IIio
oooo
oooo
0 0 0 0
9-75
0
I
9
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