MC68030FE16C Freescale Semiconductor, MC68030FE16C Datasheet - Page 376
MC68030FE16C
Manufacturer Part Number
MC68030FE16C
Description
IC MPU 32BIT ENHANCED 132-CQFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68030FE20C.pdf
(599 pages)
Specifications of MC68030FE16C
Processor Type
M680x0 32-Bit
Speed
166MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
132-CQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68030FE16C
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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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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