IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF)
IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF) IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF)
FIGURE LISTING 1. System Block Diagram ........................ 1-4 2. System Board Data Flow ...................... 2-6, 7 3. I/O Channel Diagram ......................... 2-9 4. System Board Component Diagram ............. 2-13 5. Keyboard Interface Block Diagram .............. 2-15 6. Keyboard Diagram ............................ 2-16 7. Cassette Interface Read Hardware .............. 2-19 8. Cassette Interface Write Hardware .............. 2-20 9. Cassette Motor Control. ....................... 2-20 10. Speaker Drive System Block Diagram ........... 2-22 11. System Memory Map ......................... 2-25 12. System Memory Map (Increments of I6KB) ..... 2-26 13. Power Supply and Connectors .................. 2-35 14. IBM Monochrome Display AdapterBlockDiagram ... 2-38 15. Color/Graphics Monitor Adapter Block Diagram ... 2-47 16. Parallel Printer Adapter Block Diagram ......... 2-66 17. Location of (Printer) DIP Switches ............. 2-72 18. Parallel Interface Timing ....................... 2-77 19. 5 1/4" Diskette Drive Adapter Block Diagram ... 2-90 20. Game Control Adapter Block Diagram .......... 2-117 21. Joystick Schematic ............................ 2-121 22. Asynchronous Communications Adapter Block Diagram ............................... 2-124 23. Current Loop Interface ........................ 2-127 24. Selecting The Interface Format ................. 2-146 25. BIOS Memory Map ........................... 3-7 ix
TABLE LISTING 1. lCeyboard Scan Codes ......................... 2-17 2. 6845 Initialization Parameters .................. 2-41 3. Monochrome Vs Color/Graphics Attributes ...... 2-51 4. Color/Graphics Modes ........................ 2-51 5. Summary of Available Colors .................. 2-55 6. 6845 Register Description ..................... 2-56 7. Printer Specifications .......................... 2-71 8. Functions and Conditions of DIP Switch 1 ....... 2-72 9. Functions and Conditions of DIP Switch 2 ....... 2-73 10. Connector Pin Assignment and Description of Interface Signals ................. 2-74 11. ASCII Coding Table .......................... 2-78 12. DCl/DC3 and Data Entry ..................... 2-82 13. Symbol Description ........................... 2-94 14. Status Register O.............................. 2-100 15. Status Register 1. ............................. 2-101 16. Status Register 2 .............................. 2-102 17. Status Register 3 .............................. 2-103 18. Mechanical and Electrical Specifications ......... 2-112 19. Memory Module Pin Configuration ............. 2-114 20. DIP Module Start Address ..................... 2-115 21. I/O Decodes (3F8 - 3FF) ..................... 2-125 22. Asynchronous Communications Reset Functions ... 2-133 23. BAUD Rate at 1.843 Mhz..................... 2-137 24. Interrupt Control Functions (Asynchronous) ..... 2-140 25. Character Codes .............................. 3-11 26. lCeyboard Extended Functions .................. 3-14 27. lCeyboard - Commonly Used Functions .......... 3-17 28. Basic Screen Editor Special Functions ........... 3-19 29. DOS Special Functions ........................ 3-19 30. 0-7F Interrupt Vectors ........................ 3-21 31. Basic & DOS Reserved Interrupts (80-3FF) ..... 3-22 32. Reserved Memory Locations (400-5FF) ......... 3-22 x
- Page 1: April 2011 IMPORTANT 1. The motherb
- Page 5 and 6: FEDERAL COMMUNICATIONS COMMISSION R
- Page 8 and 9: CONTENTS SECTION 1. HARDWARE OVERV
- Page 10 and 11: Programming Considerations ........
- Page 12 and 13: INS 8250 Functional Pin Description
- Page 16 and 17: SECTION I. HARDWARE OVERVIEW The
- Page 18 and 19: The 16KB Memory Expansion Kits allo
- Page 20 and 21: SECTION 2. HARDWARE ~ Contents: Sys
- Page 22 and 23: SYSTEM BOARD The System Board fits
- Page 24 and 25: The memory is dynamic 16K x 1 chips
- Page 26 and 27: System Board Data Flow Figure 2. S
- Page 28 and 29: 1/0 Channel Diagram REAR PANEl SI
- Page 30 and 31: I/O CHRDY I I/O Channel Ready: This
- Page 32 and 33: System Board Component Diagram REA
- Page 34 and 35: Keyboard Interface B lock Diagram
- Page 36 and 37: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
- Page 38 and 39: Cassette User Interface The cassett
- Page 40 and 41: Cassette Interface Connector Specif
- Page 42 and 43: I/O Address Map HEX RANGE 9 8 7 6
- Page 44 and 45: System Memory Map X'OOOOO' 16 TO 6
- Page 46 and 47: System Memory Map Cont. START ADDR
- Page 48 and 49: 5-1/4" Diskette Drives Switch Setti
- Page 50 and 51: 32/64KB Memory Expansion Option Sw
- Page 52 and 53: Power Supply The system DC power su
- Page 54 and 55: N I ~ VI ) § I • \. ~ o el so.
- Page 56 and 57: IBM Monochrome Display and Parallel
- Page 58 and 59: System Channel Interface Lines Used
- Page 60 and 61: Programming Considerations Programm
- Page 62 and 63: • CRT Status Port (I/O Address '3
TABLE LISTING<br />
1. lCeyboard Scan Codes ......................... 2-17 <br />
2. 6845 Initialization Parameters .................. 2-41 <br />
3. Monochrome Vs Color/Graphics Attributes ...... 2-51 <br />
4. Color/Graphics Modes ........................ 2-51 <br />
5. Summary of Available Colors .................. 2-55 <br />
6. 6845 Register Description ..................... 2-56 <br />
7. Printer Specifications .......................... 2-71 <br />
8. Functions and Conditions of DIP Switch 1 ....... 2-72 <br />
9. Functions and Conditions of DIP Switch 2 ....... 2-73 <br />
10. Connector Pin Assignment and <br />
Description of Interface Signals ................. 2-74 <br />
11. ASCII Coding Table .......................... 2-78 <br />
12. DCl/DC3 and Data Entry ..................... 2-82 <br />
13. Symbol Description ........................... 2-94 <br />
14. Status Register O.............................. 2-100 <br />
15. Status Register 1. ............................. 2-101 <br />
16. Status Register 2 .............................. 2-102 <br />
17. Status Register 3 .............................. 2-103 <br />
18. Mechanical and Electrical Specifications ......... 2-112 <br />
19. Memory Module Pin Configuration ............. 2-114 <br />
20. DIP Module Start Address ..................... 2-115 <br />
21. I/O Decodes (3F8 - 3FF) ..................... 2-125 <br />
22. Asynchronous Communications Reset Functions ... 2-133 <br />
23. BAUD Rate at 1.843 Mhz..................... 2-137 <br />
24. Interrupt Control Functions (Asynchronous) ..... 2-140 <br />
25. Character Codes .............................. 3-11 <br />
26. lCeyboard Extended Functions .................. 3-14 <br />
27. lCeyboard - Commonly Used Functions .......... 3-17 <br />
28. Basic Screen Editor Special Functions ........... 3-19 <br />
29. DOS Special Functions ........................ 3-19 <br />
30. 0-7F Interrupt Vectors ........................ 3-21 <br />
31. Basic & DOS Reserved Interrupts (80-3FF) ..... 3-22 <br />
32. Reserved Memory Locations (400-5FF) ......... 3-22 <br />
x
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