MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 534
MC68EC000EI20
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
-
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Supervisor (Privileged) Instructions
PVALID
Operation:
Assembler
Syntax:
Attributes:
Description: The upper bits of the source, VAL or An, compare with the upper bits of the
PMMU Status Register: Not affected.
Instruction Format 1:
6-80
15
1
0
destination, < ea > . The ALC field of the access control register defines the number of
bits compared. If the upper bits of the source are numerically greater than (less
privileged than) the destination, they cause a memory management access level
exception. Otherwise, execution continues with the next instruction. If the MC field of
the access control register = 0, then this instruction always causes a paged memory
management unit access level exception.
14
1
0
13
1
1
12
1
0
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
If (Source AL Bits)
PVALID VAL, < ea >
PVALID An, < ea >
Size = (Long)
Then TRAP
11
0
1
VAL Contains Access Level to Test Against
10
0
0
Validate a Pointer
9
0
0
(MC68851)
(Destination AL Bits)
8
0
0
7
0
0
6
0
0
5
0
MODE
4
0
EFFECTIVE ADDRESS
3
0
PVALID
2
0
REGISTER
MOTOROLA
1
0
0
0
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