MC68030RC25C Freescale Semiconductor, MC68030RC25C Datasheet - Page 352

• Manufacturer Part Number: MC68030RC25C
• Description: IC MPU 32BIT ENHANCED 128-PGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68030RC25C

• Processor Type: M680x0 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 128-PGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

MOTOROLA
9,6 M C 6 8 0 3 0 A N D M C 6 8 8 5 1 M M U
following functions of the MC68851 are not available in the MC68030 MMU:
The MC68851 paged memory management unit provides memory manage-
combination. However, in a program for the MC68030, the following instruc-
tions must be avoided or emulated in the exception routine for F-line un-
VAL, SCC, BAD, BACx, DRP, and AC). Additionally, the effective addressing
ment for the MC68020 as a coprocessor. The on-chip MMU of the MC68030
provides many of the features of the MC68020/MC68851 combination. The
In addition, the following features of the MC68030 MMU differ from the
MC68020/MC68851 pair:
In general, the MC68030 is program compatible with the MC68020/MC68851
implemented instructions: PVALID, PFLUSHR, PFLUSHS, PBcc, PDBcc, PScc,
PTRAPcc, PSAVE, PRESTORE, and PMOVE for unsupported registers (CAL,
modes supported on the MC68851 that are not emulated by the MC68030
must be simulated or avoided.
• Access Levels
• Breakpoint Registers
• Root Pointer Table
• Aliases for Tasks
• Lockable Entries in the ATC
• ATC Entries Defined as Shared Globally
• 22-Entry ATC
• Reduced Instruction Set
• Only Control-Alterable Addressing Modes Supported for MMU Instruc-
tions
M068030 USER'S MANUAL
D I F F E R E N C E S
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