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PDF MC68302 Data sheet ( Hoja de datos )
| Número de pieza | MC68302 | |
| Descripción | Integrated Multiprotocol Processor | |
| Fabricantes | Freescale Semiconductor | |
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Freescale Semiconductor, Inc.
MC68302
Integrated Multiprotocol Processor
User’s Manual
For More Information On This Product,
Go to: www.freescale.com
1 page  
Freescale Semiconductor, Inc.
TABLE OF CONTENTS
Paragraph
Number
Title
Page
Number
Section 1
General Description
1.1 Block Diagram......................................................................................... 1-1
1.2 Features .................................................................................................. 1-3
1.3 MC68302 System Architecture ............................................................... 1-4
1.4 NMSI Communications-Oriented Environment ....................................... 1-5
1.5 Basic Rate ISDN or Digital Voice/Data Terminal .................................... 1-6
2.1
2.2
2.3
2.4
2.4.1
2.4.2
2.5
2.6
2.7
2.8
2.9
Section 2
MC68000/MC68008 Core
Programming Model................................................................................ 2-1
Instruction Set Summary......................................................................... 2-3
Address Spaces ...................................................................................... 2-6
Exception Processing.............................................................................. 2-8
Exception Vectors ................................................................................... 2-8
Exception Stacking Order ....................................................................... 2-9
Interrupt Processing .............................................................................. 2-11
M68000 Signal Differences ................................................................... 2-11
MC68302 IMP Configuration Control .................................................... 2-12
MC68302 Memory Map......................................................................... 2-14
Event Registers..................................................................................... 2-19
3.1
3.1.1
3.1.2
3.1.2.1
3.1.2.2
3.1.2.3
3.1.2.4
3.1.2.5
3.1.2.6
3.1.3
3.1.3.1
3.1.3.2
3.1.4
3.1.4.1
3.1.4.2
Section 3
System Integration Block (SIB)
DMA Control............................................................................................ 3-2
Key Features........................................................................................... 3-2
IDMA Registers (Independent DMA Controller) ...................................... 3-3
Channel Mode Register (CMR)............................................................... 3-4
Source Address Pointer Register (SAPR)............................................... 3-6
Destination Address Pointer Register (DAPR)........................................ 3-6
Function Code Register (FCR)................................................................ 3-7
Byte Count Register (BCR) ..................................................................... 3-7
Channel Status Register (CSR) .............................................................. 3-7
Interface Signals ..................................................................................... 3-8
DREQ and DACK.................................................................................... 3-8
DONE...................................................................................................... 3-8
IDMA Operational Description................................................................. 3-9
Channel Initialization ............................................................................... 3-9
Data Transfer .......................................................................................... 3-9
For MorMeCI6n8f3o0r2mUaStEioRn’SOMnATNhUisALProduct,
Go to: www.freescale.com
v
5 Page 
Freescale Semiconductor, Inc. Table of Contents
Paragraph
Number
Title
Page
Number
5.6
5.7
5.8
5.9
5.10
5.11
5.12
5.13
5.14
5.15
5.16
5.17
5.18
5.19
5.20
5.21
5.22
Data Bus Pins (D15—D0) ....................................................................... 5-7
Bus Control Pins...................................................................................... 5-8
Bus Arbitration Pins............................................................................... 5-10
Interrupt Control Pins ............................................................................ 5-11
MC68302 Bus Interface Signal Summary ............................................. 5-12
Physical Layer Serial Interface Pins...................................................... 5-13
Typical Serial Interface Pin Configurations ........................................... 5-14
NMSI1 or ISDN Interface Pins............................................................... 5-14
NMSI2 Port or Port a Pins ..................................................................... 5-17
NMSI3 Port or Port A Pins or SCP Pins ................................................ 5-18
IDMA or Port A Pins .............................................................................. 5-19
IACK or PIO Port B Pins........................................................................ 5-20
Timer Pins ............................................................................................. 5-20
Parallel I/O Pins with Interrupt Capability .............................................. 5-22
Chip-Select Pins.................................................................................... 5-22
No-Connect Pins ................................................................................... 5-23
When to Use Pullup Resistors............................................................... 5-23
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11
6.12
6.13
6.14
6.15
6.16
6.17
6.18
6.19
6.20
6.21
6.22
Section 6
Electrical Characteristics
Maximum Ratings.................................................................................... 6-1
Thermal Characteristics .......................................................................... 6-1
Power Considerations ............................................................................. 6-2
Power Dissipation.................................................................................... 6-3
DC Electrical Characteristics................................................................... 6-4
DC Electrical Characteristics—NMSI1 in IDL Mode................................ 6-5
AC Electrical Specifications—Clock Timing ............................................ 6-5
AC Electrical Specifications—IMP Bus Master Cycles............................ 6-6
AC Electrical Specifications—DMA ....................................................... 6-13
AC Electrical Specifications—External Master
Internal Asynchronous Read/Write Cycles............................................ 6-16
AC Electrical Specifications—External Master Internal Synchronous
Read/Write Cycles................................................................................. 6-19
AC Electrical Specifications—Internal Master
Internal Read/Write Cycles.................................................................... 6-23
AC Electrical Specifications—Chip-Select Timing Internal
Master .................................................................................................. 6-24
AC Electrical Specifications—Chip-Select Timing External Master ...... 6-25
AC Electrical Specifications—Parallel I/O ............................................ 6-26
AC Electrical Specifications—Interrupts................................................ 6-27
AC Electrical Specifications—Timers .................................................... 6-28
AC Electrical Specifications—Serial Communications Port . ................ 6-29
AC Electrical Specifications—IDL Timing.............................................. 6-30
AC Electrical Specifications—GCI Timing............................................. 6-32
AC Electrical Specifications—PCM Timing ........................................... 6-34
AC Electrical Specifications—NMSI Timing .......................................... 6-36
For MorMeCI6n8f3o0r2mUaStEioRn’SOMnATNhUisALProduct,
Go to: www.freescale.com
xi
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MC68302.PDF ] | |
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