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PDF XPC823xxx Datasheet ( Hoja de datos )

Número de pieza XPC823xxx
Descripción Power PC Microprocessor Reference Manual
Fabricantes Motorola 
Logotipo Motorola Logotipo

Total 70 Páginas
		
XPC823xxx Hoja de datos, Descripción, Manual
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Revision 1

1 page

XPC823xxx pdf
TABLE OF CONTENTS (Continued)
Paragraph
Number
Title
Page
Number
6.2.2
6.3
6.3.1
6.3.2
6.3.3
6.3.4
6.3.4.1
6.3.5
6.3.6
6.3.6.1
6.3.7
6.3.7.1
6.3.8
6.4
6.4.1
6.4.1.1
6.4.1.2
6.4.1.2.1
6.4.1.2.2
6.4.1.2.3
6.4.1.3
6.4.1.3.1
6.4.1.3.2
6.5
6.5.1
6.6
6.6.1
6.6.2
6.6.3
6.6.4
6.6.5
6.6.6
6.6.7
6.6.8
6.6.9
6.6.10
6.6.11
6.6.12
6.6.13
6.6.13.1
Basic Instruction Pipeline ...........................................................6-4
Sequencer Unit .....................................................................................6-4
Flow Control ...............................................................................6-5
Issuing Instructions .....................................................................6-6
Interrupts ....................................................................................6-7
Implementing the Precise Exception Model ...............................6-8
Restartability After an Interrupt .....................................6-10
Processing an Interrupt ............................................................6-11
Serialization ..............................................................................6-12
Latency .........................................................................6-12
The External Interrupt ...............................................................6-13
Latency .........................................................................6-13
Interrupt Ordering .....................................................................6-14
The Register Unit ................................................................................6-15
Control Registers ......................................................................6-16
Physical Location of Special Registers .........................6-19
PowerPC Standard Control Register Bit Assignment ...6-20
Machine State Register ....................................6-20
The Condition Register ....................................6-22
Fixed-Point Exception Cause Register ............6-23
Initializing the Control Registers ...................................6-24
System Reset Interrupt ....................................6-24
Hard/Soft Reset ................................................6-24
The Fixed-Point Unit ...........................................................................6-24
XER Update in Divide Instructions ...........................................6-24
The Load/Store Unit ............................................................................6-25
Issuing Load/Store Instructions ................................................6-26
Serializing Load/Store Instructions ...........................................6-27
Instructions Issued to the Data Cache .....................................6-27
Issuing Store Instruction Cycles ...............................................6-27
Issuing Nonspeculative Load Instructions ................................6-27
Executing Unaligned Instructions .............................................6-28
Little-Endian Mode Support ......................................................6-29
Atomic Update Primitives .........................................................6-29
Instruction Timing .....................................................................6-30
Stalling Storage Control Instructions ........................................6-30
Accessing Off-Core Special Registers .....................................6-30
Storage Control Instructions .....................................................6-31
Exceptions ................................................................................6-31
DAR, DSISR, and BAR Operation ................................6-31
Section 7
MOTOROLA
MPC823 REFERENCE MANUAL
iii

5 Page

XPC823xxx arduino
TABLE OF CONTENTS (Continued)
Paragraph
Number
Title
Page
Number
12.4
12.5
12.5.1
12.6
12.6.1
12.6.2
12.6.3
12.7
12.7.1
12.7.2
12.7.3
12.7.4
12.8
12.8.1
12.8.2
12.8.3
12.9
12.9.1
12.10
12.10.1
12.11
12.12
12.12.1
12.12.1.1
12.12.1.2
12.12.1.3
12.12.1.4
The Bus Monitor ................................................................................12-11
The PowerPC Decrementer ..............................................................12-12
Decrementer Register ............................................................12-13
The PowerPC Timebase ...................................................................12-14
Timebase Register .................................................................12-14
Timebase Reference Registers ..............................................12-15
Timebase Status and Control Register ..................................12-16
The Real-Time Clock ........................................................................12-17
Real-Time Clock Status and Control Register ........................12-18
Real-Time Clock Register ......................................................12-19
Real-Time Clock Alarm Seconds Register .............................12-20
Real-Time Clock Alarm Register ............................................12-21
The Periodic Interrupt Timer .............................................................12-22
Periodic Interrupt Status and Control Register .......................12-23
Periodic Interrupt Timer Count Register .................................12-24
Periodic Interrupt Timer Register ...........................................12-25
The Software Watchdog Timer .........................................................12-26
Software Service Register ......................................................12-27
Freeze Operation ..............................................................................12-28
Low-Power Stop Operation ....................................................12-28
Multiplexing the System Interface Unit Pins ......................................12-29
Programming the System Interface Unit ...........................................12-30
System Configuration and Protection Registers .....................12-30
SIU Module Configuration Register ............................12-30
Internal Memory Map Register ...................................12-34
System Protection Control Register ............................12-35
Transfer Error Status Register ....................................12-36
13.1
13.2
13.2.1
13.3
13.4
13.4.1
13.4.2
13.4.2.1
13.4.2.2
13.4.3
13.4.4
Section 13
External Bus Interface
Features ..............................................................................................13-1
Transfer Signals ..................................................................................13-1
Control Signals .........................................................................13-3
Bus Signal Descriptions ......................................................................13-4
Bus Interface Operation ......................................................................13-7
Basic Transfers ........................................................................13-8
Single Beat Transfers ...............................................................13-8
Single Beat Read Flow .................................................13-9
Single Beat Write Flow ...............................................13-12
Burst Transfers .......................................................................13-16
The Burst Mechanism ............................................................13-16
MOTOROLA
MPC823 REFERENCE MANUAL
ix

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