MC68LC060ZU50 Freescale Semiconductor, MC68LC060ZU50 Datasheet - Page 10
MC68LC060ZU50
Manufacturer Part Number
MC68LC060ZU50
Description
IC MPU 32BIT 68K 50MHZ 304-TBGA
Manufacturer
Freescale Semiconductor
Specifications of MC68LC060ZU50
Processor Type
M680x0 32-Bit
Speed
50MHz
Voltage
3.3V
Mounting Type
Surface Mount
Package / Case
304-TBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Features
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4.6.2
4.7
4.7.1
4.7.2
4.7.3
5.1
5.2
5.3
5.4
5.4.1
5.4.1.1
5.4.1.2
5.4.2
5.4.3
5.5
5.5.1
5.5.2
5.5.3
5.5.4
5.6
5.7
5.7.1
5.7.2
5.8
5.9
5.10
5.11
5.12
5.12.1
5.12.2
6.1
6.1.1
6.1.2
6.1.2.1
6.1.2.2
6.1.3
6.1.3.1
6.1.3.2
6.1.3.3
xii
Table of Contents
MMU Instructions........................................................................................ 4-30
Cache Operation........................................................................................... 5-1
Cache Control Register ................................................................................ 5-5
Cache Management ..................................................................................... 5-6
Caching Modes............................................................................................. 5-7
Cache Protocol ............................................................................................. 5-9
Cache Coherency ....................................................................................... 5-10
Memory Accesses for Cache Maintenance ................................................ 5-11
Push Buffer ................................................................................................. 5-13
Store Buffer................................................................................................. 5-13
Push Buffer and Store Buffer Bus Operation.............................................. 5-14
Branch Cache ............................................................................................. 5-14
Cache Operation Summary ........................................................................ 5-15
Floating-Point User Programming Model...................................................... 6-2
Effect of MDIS on Address Translation .................................................... 4-30
MOVEC .................................................................................................... 4-30
PFLUSH ................................................................................................... 4-30
PLPA ........................................................................................................ 4-30
Cachable Accesses .................................................................................... 5-7
Cache-Inhibited Accesses .......................................................................... 5-8
Special Accesses ....................................................................................... 5-9
Read Miss................................................................................................... 5-9
Write Miss ................................................................................................... 5-9
Read Hit...................................................................................................... 5-9
Write Hit.................................................................................................... 5-10
Cache Filling............................................................................................. 5-11
Cache Pushes .......................................................................................... 5-13
Instruction Cache...................................................................................... 5-15
Data Cache............................................................................................... 5-16
Floating-Point Data Registers (FP7–FP0) .................................................. 6-3
Floating-Point Control Register (FPCR) ..................................................... 6-3
Floating-Point Status Register (FPSR)....................................................... 6-4
Writethrough Mode ................................................................................... 5-7
Copyback Mode ....................................................................................... 5-8
Exception Enable Byte ............................................................................. 6-3
Mode Control Byte.................................................................................... 6-3
Floating-Point Condition Code Byte ......................................................... 6-5
Quotient Byte............................................................................................ 6-5
Exception Status Byte .............................................................................. 6-5
M68060 USER’S MANUAL
Floating-Point Unit
Section 5
Section 6
Caches
MOTOROLA
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