Intel 8XC251SQ user manual

User manual for the device Intel 8XC251SQ

Device: Intel 8XC251SQ
Category: Microscope & Magnifier
Manufacturer: Intel
Size: 2.71 MB
Added : 4/24/2014
Number of pages: 458
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Abstracts of contents
Summary of the content on the page No. 1

8XC251SA, 8XC251SB, 8XC251SP, 8XC251SQ
Embedded Microcontroller User’s Manual
27279502.qxd 6/18/96 9:25 AM Page 1
8XC251SA, 8XC251SB,
8XC251SP, 8XC251SQ
Embedded Microcontroller
User’s Manual

Summary of the content on the page No. 2

Summary of the content on the page No. 3

8XC251SA, 8XC251SB, 8XC251SP, 8XC251SQ Embedded Microcontroller User’s Manual May 1996 Order Number 272795-002

Summary of the content on the page No. 4

Information in this document is provided in connection with Intel products. Intel assumes no liability whatsoever, including in- fringement of any patent or copyright, for sale and use of Intel products except as provided in Intel’s Terms and Conditions of Sale for such products. Intel retains the right to make changes to these specifications at any time, without notice. Microcontroller products may have minor variations to this specification known as errata. *Other brands and names are the pro

Summary of the content on the page No. 5

CONTENTS CHAPTER 1 GUIDE TO THIS MANUAL 1.1 MANUAL CONTENTS ................................................................................................... 1-1 1.2 NOTATIONAL CONVENTIONS AND TERMINOLOGY ................................................ 1-3 1.3 RELATED DOCUMENTS .............................................................................................. 1-5 1.3.1 Data Sheet ......................................................................................................

Summary of the content on the page No. 6

8XC251SA, SB, SP, SQ USER’S MANUAL 3.3.2.3 Extended Stack Pointer, SPX ............................................................................3-15 3.4 SPECIAL FUNCTION REGISTERS (SFRS) ............................................................... 3-16 CHAPTER 4 DEVICE CONFIGURATION 4.1 CONFIGURATION OVERVIEW .................................................................................... 4-1 4.2 DEVICE CONFIGURATION .....................................................................

Summary of the content on the page No. 7

CONTENTS 5.4 BIT INSTRUCTIONS ................................................................................................... 5-11 5.4.1 Bit Addressing .........................................................................................................5-11 5.5 CONTROL INSTRUCTIONS ....................................................................................... 5-12 5.5.1 Addressing Modes for Control Instructions .............................................................5-13 5.

Summary of the content on the page No. 8

8XC251SA, SB, SP, SQ USER’S MANUAL 8.2 TIMER/COUNTER OPERATION................................................................................... 8-1 8.3 TIMER 0......................................................................................................................... 8-3 8.3.1 Mode 0 (13-bit Timer) ...............................................................................................8-4 8.3.2 Mode 1 (16-bit Timer) ..........................................................

Summary of the content on the page No. 9

CONTENTS 10.2 MODES OF OPERATION............................................................................................ 10-4 10.2.1 Synchronous Mode (Mode 0) ..................................................................................10-4 10.2.1.1 Transmission (Mode 0) ......................................................................................10-4 10.2.1.2 Reception (Mode 0) ............................................................................................10-5 10.

Summary of the content on the page No. 10

8XC251SA, SB, SP, SQ USER’S MANUAL 12.2.2 Power Off Flag ........................................................................................................12-1 12.3 IDLE MODE ................................................................................................................. 12-4 12.3.1 Entering Idle Mode ..................................................................................................12-4 12.3.2 Exiting Idle Mode ..............................................

Summary of the content on the page No. 11

CONTENTS CHAPTER 14 PROGRAMMING AND VERIFYING NONVOLATILE MEMORY 14.1 GENERAL.................................................................................................................... 14-1 14.1.1 Programming Considerations for On-chip Code Memory .......................................14-2 14.1.2 EPROM Devices .....................................................................................................14-3 14.2 PROGRAMMING AND VERIFYING MODES....................................

Summary of the content on the page No. 12

8XC251SA, SB, SP, SQ USER’S MANUAL FIGURES Figure Page 2-1 Functional Block Diagram of the 8XC251SA, SB, SP, SQ...........................................2-2 2-2 The CPU.......................................................................................................................2-5 2-3 Clocking Definitions......................................................................................................2-6 3-1 Address Spaces for MCS® 251 Microcontrollers .............................

Summary of the content on the page No. 13

CONTENTS FIGURES Figure Page 8-12 T2CON: Timer 2 Control Register ..............................................................................8-17 9-1 Programmable Counter Array.......................................................................................9-3 9-2 PCA 16-bit Capture Mode ............................................................................................9-6 9-3 PCA Software Timer and High-speed Output Modes...................................................9-8 9

Summary of the content on the page No. 14

8XC251SA, SB, SP, SQ USER’S MANUAL FIGURES Figure Page 13-23 Bus Diagram for Example 4: 87C251SB/83C251SB in Nonpage Mode ..................13-24 13-24 Address Space for Example 4..................................................................................13-25 13-25 Bus Diagram for Example 5: 80C251SB in Nonpage Mode.....................................13-27 13-26 Address Space for Examples 5 and 6 ......................................................................13-28 13-27 Bus Diagra

Summary of the content on the page No. 15

CONTENTS TABLES Table Page 1-1 Intel Application Support Services................................................................................1-7 2-1 8XC251SA, SB, SP, SQ Features................................................................................2-3 3-1 Address Mappings........................................................................................................3-4 3-2 Minimum Times to Fetch Two Bytes of Code..............................................................

Summary of the content on the page No. 16

8XC251SA, SB, SP, SQ USER’S MANUAL TABLES Table Page 10-4 Timer 1 Generated Baud Rates for Serial I/O Modes 1 and 3..................................10-12 10-5 Selecting the Baud Rate Generator(s) .....................................................................10-13 10-6 Timer 2 Generated Baud Rates ...............................................................................10-14 12-1 Pin Conditions in Various Modes.........................................................................

Summary of the content on the page No. 17

CONTENTS TABLES Table Page C-4 Serial I/O SFRs ...........................................................................................................C-4 C-5 Timer/Counter and Watchdog Timer SFRs .................................................................C-4 C-6 Programmable Counter Array (PCA) SFRs.................................................................C-5 C-7 Register File .......................................................................................................

Summary of the content on the page No. 18

Summary of the content on the page No. 19

1 Guide to This Manual

Summary of the content on the page No. 20


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