Intel 386 User Manual Page 38
- Page / 691
- Table of contents
- BOOKMARKS
Rated. / 5. Based on customer reviews
2-1
CHAPTER 2
ARCHITECTURAL OVERVIEW
The Intel386
™
EX embedded processor (Figure 2-1) is based on the static Intel386 SX processor.
This highly integrated device retains those personal computer functions that are useful in embed-
ded applications and integrates peripherals that are typically needed in embedded systems. The
Intel386 EX processor provides a PC-compatible development platform in a device that is opti-
mized for embedded applications. Its integrated peripherals and power management options
make the Intel386 EX processor ideal for portable systems.
The integrated peripherals of the Intel386 EX processor are compatible with the standard desktop
PC. This allows existing PC software, including most of the industry’s leading desktop and em-
bedded operating systems, to be easily implemented on an Intel386 EX processor-based platform.
Using PC-compatible peripherals also allows for the development and debugging of application
software on a standard PC platform.
Typical applications using the Intel386 EX processor include automated manufacturing equip-
ment, cellular telephones, telecommunications equipment, fax machines, hand-held data loggers,
high-precision industrial flow controllers, interactive television, medical equipment, modems,
and smart copiers.
This chapter is organized as follows:
• Intel386 EX Embedded Processor Core (see below)
• Integrated Peripherals (page 2-3)
2.1 Intel386 EX EMBEDDED PROCESSOR CORE
The Intel386 EX processor contains a modular, fully static Intel386 CX central processing unit
(CPU). The Intel386 CX processor is an enhanced Intel386 SX processor with the addition of
System Management Mode (SMM) and two additional address lines. The Intel386 EX processor
has a 16-bit data bus and a 26-bit address bus, supporting up to 64 Mbytes of memory address
space and 64 Kbytes of I/O address space. The performance of the Intel386 EX processor closely
reflects the Intel386 SX CPU performance at the same speeds.
Chapter 3, “CORE OVERVIEW” describes differences between the Intel386 EX processor core
and the Intel386 SX processor. Please refer to the Intel386™ SX Microprocessor Programmer’s
Reference Manual (order number 240331) for applications and system programming informa-
tion; descriptions of protected, real, and virtual-8086 modes; and details on the instruction set.
- Intel386 1
- Embedded Microprocessor 1
- User’s Manual 1
- Intel386 EX 2
- Embedded 2
- Microprocessor 2
- User’s Manual 2
- GUIDE TO THIS 26
- CHAPTER 1 28
- GUIDE TO THIS MANUAL 28
- Packaging 32
- ARCHITECTURAL 36
- OVERVIEW 36
- CHAPTER 2 38
- ARCHITECTURAL OVERVIEW 38
- A2849-02 39
- 2.2 INTEGRATED PERIPHERALS 40
- IEEE Standard Test 41
- CORE OVERVIEW 42
- CHAPTER 3 44
- A2850-01 45
- REGISTER 50
- ORGANIZATION 50
- CHAPTER 4 52
- SYSTEM REGISTER ORGANIZATION 52
- A2499-02 55
- A2495-02 61
- A2496-02 63
- A2502-02 65
- CONFIGURATION 72
- CHAPTER 5 74
- A2535-01 75
- • A timer (OUT1, OUT2) 76
- A2517-03 85
- A2518-02 91
- A3380-01 93
- 5.2.7 Core Configuration 94
- DEVICE CONFIGURATION 100
- • Interrupt Control Unit: 101
- • Timer Control Unit: 101
- BUS INTERFACE 112
- CHAPTER 6 114
- BUS INTERFACE UNIT 114
- 6.1.1 Bus Signal Descriptions 116
- A2305-02 119
- A2484-02 121
- Figure 6-3. Ready Logic 124
- A2486-03 125
- A2488-02 131
- READY# Asserted • 133
- HOLD Asserted 133
- • NA# is ignored 136
- Figure 6-10. Halt Cycle 140
- A2493-02 143
- 6.3.7.1 Write Cycles 144
- 6.3.7.2 Read Cycles 144
- A3375-01 146
- 6.6.1.1 System Configuration 152
- A2854-02 155
- A3265-02 157
- MANAGEMENT 158
- CHAPTER 7 160
- SYSTEM MANAGEMENT MODE 160
- A2510-02 164
- A2512-02 165
- 7.3.2.1 SMI# Priority 166
- A2508-01 167
- A2509-01 168
- A2511-02 169
- A2505-02 170
- A2507-01 171
- 7.3.4.2 SMRAM State Dump Area 173
- CLOCK AND 180
- CHAPTER 8 182
- A2470-02 183
- A2229-03 186
- 8.4.2.1 Built-in Self Test 193
- 8.4.2.2 JTAG Reset 193
- INTERRUPT 198
- CONTROL UNIT 198
- CHAPTER 9 200
- INTERRUPT CONTROL UNIT 200
- 9.2.2.2 Determining Priority 206
- A2428-01 211
- • A poll command is issued 213
- A2430-01 228
- Data Bus 228
- Vector Number 228
- IR (Valid) 229
- IR sampled on this edge 229
- IR (Spurious) 229
- A2857-01 230
- // Vector Table 238
- TIMER/COUNTER 242
- CHAPTER 10 244
- TIMER/COUNTER UNIT 244
- A2317-02 245
- Table 10-1. TCU Signals 246
- A2395-02 251
- A2312-02 252
- • A gate trigger 253
- • The counter reaches one 253
- A2400-01 257
- ????864286410 258
- A2315-01 259
- A2316-01 261
- Table 10-4. GATE 263
- Connection Options 263
- 10.3.4.1 Simple Read 270
- Figure 10-28. Timer 272
- Register (TMR 272
- – Read Format) 272
- Figure 10-30. Timer 275
- – Status Format) 275
- • With the readback command: 277
- ASYNCHRONOUS 286
- SERIAL I/O UNIT 286
- CHAPTER 11 288
- ASYNCHRONOUS SERIAL I/O UNIT 288
- A2519-02 289
- 11.1.1 SIO Signals 290
- Figure 11-2. SIO 291
- Table 11-1. SIO Signals 291
- Figure 11-3. SIO 294
- Transmitter 294
- Figure 11-4. SIO 295
- Figure 11-5. SIO 296
- Receiver 296
- A2525-02 298
- 11.2.6.2 SIO DMA sources 300
- 11.3 REGISTER DEFINITIONS 302
- = 1–3]) 304
- and DLH 309
- CONTROLLER 334
- CHAPTER 12 336
- DMA CONTROLLER 336
- A2531-02 337
- 12.1.2 DMA Signals 339
- 12.2.2.1 Fly-By Mode 340
- 12.2.2.2 Two-Cycle Mode 341
- A3381-01 343
- A2480-02 344
- A2332-02 351
- A2333-02 355
- A2338-02 357
- A2336-02 359
- Figure 12-17. Cascade Mode 361
- 12.3 REGISTER DEFINITIONS 363
- (read format) 378
- (Address) 385
- Command Functions 385
- DWORD lAddress; 390
- SYNCHRONOUS 398
- CHAPTER 13 400
- SYNCHRONOUS SERIAL I/O UNIT 400
- A2435-02 401
- A2436-02 402
- 13.1.1 SSIO Signals 403
- Baud-rate Value 405
- A3398-01 409
- (Enabled when Clock is High) 410
- (Enabled when Clock is Low) 410
- 13.2.2.2 Autotransmit Mode 411
- 13.2.2.3 Slave Mode 411
- A3397-01 413
- 13.3 REGISTER DEFINITIONS 415
- (BCLKIN) 417
- SSIO Example Code 425
- CHIP-SELECT 434
- CHAPTER 14 436
- CHIP-SELECT UNIT 436
- A2534-01 439
- A2392-02 447
- ADH, UCSADH) 452
- ADL, UCSADL) 453
- MSKH, UCSMSKH) 454
- MSKL, UCSMSKL) 455
- REFRESH 460
- CHAPTER 15 462
- REFRESH CONTROL UNIT 462
- 15.4 REGISTER DEFINITIONS 467
- INPUT/OUTPUT 478
- CHAPTER 16 480
- INPUT/OUTPUT PORTS 480
- 16.1.1 Port Functionality 481
- Table 16-1. Pin Multiplexing 484
- 16.2 REGISTER DEFINITIONS 485
- 16.4.1 I/O Ports Code Example 490
- WATCHDOG 494
- TIMER UNIT 494
- CHAPTER 17 496
- WATCHDOG TIMER UNIT 496
- A2330-02 497
- Table 17-1. WDT Signals 498
- 17.4 REGISTER DEFINITIONS 502
- JTAG TEST-LOGIC 512
- CHAPTER 18 514
- JTAG TEST-LOGIC UNIT 514
- A2340-01 515
- A2356-01 519
- × 2 cells) 522
- 18.4 TIMING INFORMATION 525
- DESCRIPTIONS 528
- APPENDIX A 530
- SIGNAL DESCRIPTIONS 530
- COMPATIBILITY 540
- WITH THE PC/AT* 540
- ARCHITECTURE 540
- APPENDIX B 542
- COMPATIBILITY WITH THE PC/AT* 542
- MASTER# 544
- (From PC/AT* Bus) 544
- Processor 544
- EXAMPLE CODE 548
- HEADER FILES 548
- APPENDIX C 550
- EXAMPLE CODE HEADER FILES 550
- C.2 EXAMPLE CODE DEFINES 555
- REGISTER QUICK 564
- REFERENCE 564
- APPENDIX D 566
- D.2 CLKPRS 572
- ADH (UCSADH) 573
- ADL (UCSADL) 574
- MSKH (UCSMSKH) 575
- MSKL (UCSMSKL) 576
- AND DLH 577
- D.8 DMABSR 578
- D.9 DMACFG 579
- D.10 DMACHR 580
- D.11 DMACMD1 581
- D.12 DMACMD2 582
- D.13 DMAGRPMSK 583
- D.14 DMAIEN 584
- D.15 DMAIS 585
- D.16 DMAMOD1 586
- D.17 DMAMOD2 587
- D.18 DMAMSK 588
- D.20 DMAOVFE 590
- D.21 DMASRR 591
- (write format) 591
- D.22 DMASTS 592
- D.23 ICW1 (MASTER AND SLAVE) 593
- D.24 ICW2 (MASTER AND SLAVE) 594
- D.25 ICW3 (MASTER) 594
- D.26 ICW3 (SLAVE) 595
- D.27 ICW4 (MASTER AND SLAVE) 595
- D.28 IDCODE 596
- D.29 IER 597
- D.30 IIR 598
- D.31 INTCFG 599
- D.33 LCR 601
- D.34 LSR 602
- D.35 MCR 603
- D.36 MSR 604
- D.37 OCW1 (MASTER AND SLAVE) 605
- D.38 OCW2 (MASTER AND SLAVE) 606
- D.39 OCW3 (MASTER AND SLAVE) 607
- D.40 P1CFG 608
- D.41 P2CFG 609
- D.42 P3CFG 610
- D.43 PINCFG 611
- D.47 POLL (MASTER AND SLAVE) 614
- D.48 PORT92 615
- D.49 PWRCON 616
- D.50 RBR 617
- D.51 REMAPCFG 618
- D.52 RFSADD 619
- D.53 RFSBAD 619
- D.54 RFSCIR 620
- D.55 RFSCON 620
- D.56 SCR 621
- D.57 SIOCFG 622
- D.58 SSIOBAUD 623
- D.59 SSIOCON1 624
- D.60 SSIOCON2 625
- D.61 SSIOCTR 626
- D.62 SSIORBUF 626
- D.63 SSIOTBUF 627
- D.64 TBR 627
- D.65 TMRCFG 628
- D.66 TMRCON 629
- D.67 TMR 630
- D.72 WDTCNTH AND WDTCNTL 633
- D.73 WDTRLDH AND WDTRLDL 634
- D.74 WDTSTATUS 635
- INSTRUCTION SET 636
- APPENDIX E 638
- INSTRUCTION SET SUMMARY 638
- Wait states: 639
- Instruction Format 640
- Clock Count Notes 640
- ≤ IOPL. If CPL 658
- GLOSSARY 670
- Glossary-2 673
- Glossary-4 675
Related products and manuals for Hardware Intel 386
Hardware Intel 80303 User Manual
(38 pages)
(38 pages)
Hardware Intel D845WN User Manual
(88 pages)
(88 pages)
Hardware Intel IWILL P4D-N User Manual
(104 pages)
(104 pages)
Hardware Intel IXDP465 User Manual
(22 pages)
(22 pages)
Hardware Intel 83C51FA User Manual
(13 pages)
(13 pages)
Hardware Intel WiFi Link 5100 User Manual
(40 pages)
(40 pages)
Hardware Intel SERVER BOARD SDS2 User Manual
(145 pages)
(145 pages)
Hardware Intel GA-8IPXDR-E User Manual
(70 pages)
(70 pages)
Hardware Intel 3945ABG User Manual
(180 pages)
(180 pages)
Hardware Intel D975XBX User Manual
(78 pages)
(78 pages)
Hardware Intel LGA775 User Manual
(10 pages)
(10 pages)
Hardware Intel GA-G31M-S2L User Manual
(88 pages)
(88 pages)
Hardware Intel CV702A User Manual
(54 pages)
(54 pages)
Hardware Intel D865GBF User Manual
(94 pages)
(94 pages)
Hardware Intel AW8D User Manual
(80 pages)
(80 pages)
Hardware Intel GA-8IPE1000 User Manual
(80 pages)
(80 pages)
Hardware Intel iEi Motherboard A300 User Manual
(192 pages)
(192 pages)
© 2020, manymanuals.com. All rights reserved. | 1.001 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals