IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF)

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Programming Considerations ....................... 2-55 Programming The 6845 Controller ................ 2-55 6845 Register Description ....................... 2-56 Programming the Mode Control and Status Register ... 2-57 Color Select Register ........................... 2-57 Mode Select Register ........................... 2-58 Mode Register Summary ........................ 2-58 Status Register ................................. 2-59 Sequence of Events ............................. 2-59 Memory Requirements .......................... 2-60 Interrupt Level ................................. 2-60 I/O Address and Bit Map ....................... 2-61 Color/Graphics Monitor Adapter Direct Drive, and Composite Interface Pin Assignment ............... 2-62 Color/Graphics Monitor Adapter Auxiliary Video Connectors ............................... 2-63 Parallel Printer Adapter .......................... 2-65 Parallel Printer Block Diagram ..................... 2-66 Programming Considerations ....................... 2-67 Parallel Printer Adapter Interface Connector Specifications ................................... 2-69 <strong>IBM</strong> 80 CPS Matrix Printer ....................... 2-70 Printer Specifications .............................. 2-71 Setting The DIP Switches ......................... 2-72 Functions and Conditions of DIP Switch 1 ........ 2-72 Functions and Conditions of DIP Switch 2 ........ 2-73 Parallel Interface Description ...................... 2-73 Connector Pin Assignment and Descriptions of Interface Signals .............................. 2-74 Parallel Interface Timing Diagram ................ 2-77 ASCII Coding Table .............................. 2-78 ASCII Control Codes ............................. 2-79 5 1/4" Diskette Drive Adapter .................... 2-89 5 1/4" Diskette Drive Adapter Block Diagram ....... 2-90 Functional Description ............................ 2-91 Digital Output Register .......................... 2-91 Floppy Disk Controller. ......................... 2-91 Programming Considerations ....................... 2-94 Symbol Descriptions ............................ 2-94 Command Summary ............................ 2-96 Command Status Registers ...................... 2-100 v
Progranuning Summary ............................ 2-103 D<strong>PC</strong> Registers ................................. 2-103 Drive Constants ................................ 2-104 Comments ..................................... 2-104 System I/O Channel Interface ...................... 2-104 Drive A and B Interface ........................... 2-106 Adapter Outputs ............................... 2-106 Adapter Inputs ................................. 2-107 5 1/4" Diskette Drive Adapter Internal Interface Specifications ................................... 2-108 5 1/4" Diskette Drive Adapter External Interface Specifications ................................... 2-109 5 1/4" Diskette Drive ............................. 2-110 Diskettes ........................................ 2-111 Mechanical and Electrical Specifications ............ 2-112 Memory Expansion Options ...................... 2-113 Operating Characteristics .......................... 2-113 Memory Module Description ....................... 2-114 Memory Module Pin Configuration ................. 2-114 Switch Configurable Start Address .................. 2-115 Game Control Adapter ........................... 2-117 Game Control Adapter Block Diagram .............. 2-117 Functional Description ............................ 2-118 Address Decode ................................ 2-118 Data Buss Buffer/Driver ........................ 2-118 Trigger Buttons ................................. 2-118 Joystick Po~tions .............................. 2-118 I/O Channel Description .......................... 2-119 Interface Description .............................. 2-119 Joystick Schematic ................................ 2-121 Game Control Adapter (Analog Input) Connector Specifications ................................... 2-122 Asynchronous Communications Adapter .......... 2-123 Asynchronous Communications Adapter Block Diagram ....................................... 2-124 Modes of Operation ............................... 2-125 I/O Decode for Communications Adapter ......... 2-125 Interrupts...................................... 2-126 Interface Description .............................. 2-126 Current Loop Interface .......................... 2-127 Voltage Interchange Information .................. 2-128 vi
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 12 and 13: INS 8250 Functional Pin Description
Page 14 and 15: FIGURE LISTING 1. System Block Dia
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
Page 64 and 65:
Color/Graphics Monitor Adapter The
Page 66 and 67:
CPU .. r-- ) ) ) DISPLAY ADDRESS BU
Page 68 and 69:
Modes of Operation There are two ba
Page 70 and 71:
IBM Monochrome Display Adapter V s.
Page 72 and 73:
Color selection is determined by th
Page 74 and 75:
1"'"""""\ Table 5. I R G B Summary
Page 76 and 77:
Programming the Mode Control and St
Page 78 and 79:
Bit 5 When on, this bit will change
Page 80 and 81:
I/O Address and Bit Map Read/Write
Page 82 and 83:
Color/Graphics Monitor Adapter Auxi
Page 84 and 85:
Parallel Printer Adapter The Printe
Page 86 and 87:
Programming Considerations The Prin
Page 88 and 89:
Parallel Printer Adapter Interface
Page 90 and 91:
Table 7. Printer Specifications (1
Page 92 and 93:
Table 9. Functions and Conditions o
Page 94 and 95:
Table 10. Connector Pin Assignment
Page 96 and 97:
(4) Data transfer sequence Fig. 17
Page 98 and 99:
ASCII Control Codes Control Codes V
Page 100 and 101:
(8) DC 2 (Device Control 2) The DC
Page 102 and 103:
(b) 3) ESC 2 (Escape 2) Receipt of
Page 104 and 105:
ehaves like the LF code. Therefore,
Page 106 and 107:
[DATA] IESCGI ABCDEFGHI [PRINT] ABC
Page 108 and 109:
5 1/4-Inch Diskette Drive Adapter T
Page 110 and 111:
~ Functional Description From a pro
Page 112 and 113:
The FOe is capable of performing 15
Page 114 and 115:
Table 13. Symbol Descriptions (cont
Page 116 and 117:
Command Summary (continued) DATA B
Page 118 and 119:
Command Summary (continued) DATA B
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Table 15. Status Register I BIT NO.
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Table 17. Status Register 3 BIT NO.
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~ ~ +AO-9 +AEN -lOW -lOR -DACK2 +T
Page 126 and 127:
Adapter Inputs -Index -Write Protec
Page 128 and 129:
5-1/4" Diskette Drive Adapter Exter
Page 130 and 131:
(3) The write-protect sensor disabl
Page 132 and 133:
Memory Expansion Options Two Memory
Page 134 and 135:
Switch - Configurable Start Address
Page 136 and 137:
Game Control Adapter The Game Co
Page 138 and 139:
I/O Channel Description A9-AO: D7-D
Page 140 and 141:
) ) ) 15 PIN MALE '0' SHELL c....t
Page 142 and 143:
Asynchronous Communications Adapter
Page 144 and 145:
Modes of Operation The different mo
Page 146 and 147:
I TRANSMIT 'IACUIT I +5V ~ 4S-"l Tx
Page 148 and 149:
INS8250 Functional Pin Description
Page 150 and 151:
Data Set Ready (DSR), Pin 37: When
Page 152 and 153:
Input/Output Signals Data (D7-DO) B
Page 154 and 155:
Bit 3: This bit is the Parity Enabl
Page 156 and 157:
Table 23. BAUD RATE AT 1.843 Mhz De
Page 158 and 159:
Interrupt Identification Register T
Page 160 and 161:
Interrupt Enable Register This 8-bi
Page 162 and 163:
In the diagnostic mode, the receive
Page 164 and 165:
Transmitter Holding Register The T
Page 166 and 167:
Page 168 and 169:
SECTION 3. ROM and SYSTEM r", USAGE
Page 170 and 171:
MOV AH,l ;function is to set time o
Page 172 and 173:
Vectors With Special Meanings Inter
Page 174 and 175:
BIOS Memory Map STARTING ADDRESS H
Page 176 and 177:
The timer is set mode 3 which means
Page 178 and 179:
Keyboard Encoding and Usage Encodin
Page 180 and 181:
Keys 71-83 have meaning only in bas
Page 182 and 183:
ALT - Temporarily shifts keys 2-13,
Page 184 and 185:
Keyboard Usage This section is inte
Page 186 and 187:
Table 28. BASIC Screen Editor Speci
Page 188 and 189:
Low Memory Maps (O-'0600'x) Table 3
Page 190 and 191:
BASIC Workspace Variables If you do
Page 192:
APPENDICES Contents: Appendix A: RO
Page 195 and 196:
lOC OBJ LINE SOURCE STITlE( ROM BIO
Page 197 and 198:
LOC OBJ LINE SOURCE 0068 ?! 155 De
Page 199 and 200:
LOC OBJ LINE SOURCE E09E BBf5 EOAO
Page 201 and 202:
lOC OBJ LINE SOURCE £179 E2FD 462
Page 203 and 204:
LOC OBJ LINE SOURCE E278 7408 612 J
Page 205 and 206:
lOC OBJ LINE SOURCE 755 ; ---------
Page 207 and 208:
LOC OSJ LINE SOU RCE E42B 7440 900
Page 209 and 210:
lOC OBJ LINE SOURCE ESIE 884000 E52
Page 211 and 212:
LaC OBJ LINE SOURCE E613 803E120001
Page 213 and 214:
LaC OSJ LINE SOURCE E6EC eSOAOE E6E
Page 215 and 216:
LaC OBJ LINE SOURCE E7SF 1505 .402:
Page 217 and 218:
LaC OBJ LINE SOURCE 1659 ASSUME CS:
Page 219 and 220:
LOC OBJ LINE SOURCE E994 8E08 1798
Page 221 and 222:
LOC 08J LINE SOURCE £"91 474849 EA
Page 223 and 224:
LaC OBJ LINE SOURCE E890 E99700 E89
Page 225 and 226:
LOC 08J LINE SOURCE 2255 ;-- INT 13
Page 227 and 228:
LOC OS! LINE SOURCE 2407 ;------ DI
Page 229 and 230:
lOC OBJ LINE SOURCE (Eol 7438 fE03
Page 231 and 232:
LOC OBJ LINE SOURCE Ef'tD £67200 2
Page 233 and 234:
LOC OBJ LINE SOURCE 2870 I ~- -----
Page 235 and 236:
LOC (lBJ LINE SOURCE 3007 j --- INT
Page 237 and 238:
laC OBJ LINE SOURCE 3157 (AH}=6 SCR
Page 239 and 240:
lOC OBJ LINE SOURt.:E FOA43828ZDOAI
Page 241 and 242:
lOC OBJ LINE SOURCE FtC7 3458 VIDEO
Page 243 and 244:
LOC OBJ LINE SOURCE F260 750E f2:62
Page 245 and 246:
LOC OBJ LINE SOURCE F32B 06 3760 PU
Page 247 and 248:
LOC OBJ LINE SOURCE F3Cl 3910 NEAR
Page 249 and 250:
laC OBJ LINE SOURCE 1'460 80HfE F46
Page 251 and 252:
LOC OBJ LINE SOURCE F4FF BSFB 4213
Page 253 and 254:
LOC OBJ LINE SOURCE 4359 j------ IM
Page 255 and 256:
LOC OBJ LINE SOURCE F689 57 4511 PU
Page 257 and 258:
lOC OBJ LINE SOLIRCE 4662 THE 0 COL
Page 259 and 260:
LOC OBJ LINE SOURCE F7Cl 8AC4 F7e]
Page 261 and 262:
LaC OBJ LINE SOURCE F840 4967 EQUIP
Page 263 and 264:
LOC OBJ LINE SOURCE F8DA E304 5116
Page 265 and 266:
LOC OBJ LINE SOURCE F97E EBF9 5268
Page 267 and 268:
LOC OBJ LINE SOURCE H20 C3 5415 RET
Page 269 and 270:
LOC OBJ LINE SOURCE fC46 0030300000
Page 271 and 272:
LOC OBJ LINE SOURCE FEBS 833E6E0018
Page 273 and 274:
lOC OBJ LINE SOURCE 5866 ;.*.-•
Page 275 and 276:
A-82 NOTES
Page 277 and 278:
8088 REGISTER MODEL AX: AH Al ACCUM
Page 279 and 280:
MEMORY SEGMENTATION MODEL LOGICAL
Page 281 and 282:
XCHG =Exchange RegisterImemory with
Page 283 and 284:
SBB = Subtract with borrow Reg./mem
Page 285 and 286:
AND = And Reg./memory and register
Page 287 and 288:
Indirect within segment 11111111 mo
Page 289 and 290:
8088 CONDITIONAL TRANSFER OPERATION
Page 291 and 292:
BOBBINSTRUCTION SET MATRIX LO HI 0
Page 293 and 294:
INSTRUCTION SET INDEX Mnemonic Pag
Page 295 and 296:
VALUE AS CHARACTERS AS TEXT ATTRIBU
Page 297 and 298:
Page 299 and 300:
Page 301 and 302:
Page 303 and 304:
Page 305 and 306:
Character Set (OO-7F) Quick Referen
Page 307 and 308:
C-14 NOTES
Page 309 and 310:
SYSTEM BOARD (PROCESSOR AND SUPPORT
Page 311 and 312:
SYSTEM BOARD (DEVICE DECODES) I~ i
Page 313 and 314:
SYSTEM BOARD (ROS AND BUS DRIVER) ~
Page 315 and 316:
Ṉ-0 SYSTEM BOARD (DYNAMIC MEMORY
Page 317 and 318:
SYSTEM BOARD (KEYBOARD/SENSE/CONTRO
Page 319 and 320:
\:j I " m < -tv CI:I Q » :11:1 Q P
Page 321 and 322:
I- z ..... 0 t:::I 0 ... ;:; ~ r
Page 323 and 324:
tl I-0'1 ," r-" "~ (S"T" 'RESET I E
Page 325 and 326:
~ ~ ~ ~ ~~ IBM MONOCHROME DISPLAY A
Page 327 and 328:
tj III ~ N 14L.517') ~ 0 __________
Page 329 and 330:
~ N s: N CI CO J ~ CI 2 A Y 18 n DA
Page 331 and 332:
IBM MONOCHROME OISPLAY DANGER HAZAR
Page 333 and 334:
COLOR/GRAPHICS MONITOR ADAPTER ~
Page 335 and 336:
1'. -- COLOR/GRAPHICS MONITOR ADAPT
Page 337:
1 COLOR/GRAPHICS MONITOR ADAPTER :;
Page 341 and 342:
PARALLEL PRINTER ADAPTER D-34
Page 343 and 344:
t:l +AEN AND U'I GATE , ., + ENABL
Page 345 and 346:
t:! W CI CHARGE PUMP 00 AOI en U ~I
Page 347 and 348:
5%" DISKETTE DRIVE .., CI -N ... ';
Page 349 and 350:
t:j ~ N o W z N ;:1'1: ~ aZKO: ." R
Page 351 and 352:
32KB MEMORY EXPANSION d-w- I NNO) 3
Page 353 and 354:
64 ~~ MEMORY EXPANSION ~~ D-46
Page 355 and 356:
BO~ t::l azq +';V[)( +'>vOC 'f c+o;
Page 357 and 358:
D-50 NOTES
Page 359 and 360:
IBM Monochrome Display Size: Length
Page 361 and 362:
12. Binary: (1) Pertaining to a sel
Page 363 and 364:
40. Hertz (Hz.): A unit offrequency
Page 365 and 366:
70. OR: A logic operator having the
Page 367 and 368:
G-8 NOTES
Page 369 and 370:
Other Related Publications 7. NATIO
Page 371 and 372:
Page 373 and 374:
Character Codes 3-11 Generator 2-
Page 375 and 376:
DIN (Connectors) 2-5 DIP (Dual In-L
Page 377 and 378:
Game Control Adapter (continued) C
Page 379 and 380:
I/O (Input/Output) Address Map 2-33
Page 381 and 382:
Microsecond 2-3 Mnemonic B-18 Mod
Page 383 and 384:
Parameters, 6845 Initialization 2-4
Page 385 and 386:
Read/Write Memory (continued) Grap
Page 387 and 388:
s Scan Codes 2-17 Screen 2-43 Sche
Page 389 and 390:
u Unit Specifications Appendix E
Page 391 and 392:
1-22 NOTES
Page 393:
III"I UNITED NO POSTAGE NECESSARY
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IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF)

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