OVERVIEW OF THE 80C186 FAMILY ARCHITECTURE
2-38
Figure 2-23. 80C186 Modular Core Family Supported Data Types
15
+1
8 7
0
0
16
+2
23
24
+3
31
NOTE: *Directly supported if the system contains an 80C187.
15 14
+1
8 7
0
0
15
+1
8 7
0
0
7
0 7
0
BCD Digit n
BCD Digit 1
BCD Digit 0
0
ASCII Character n
ASCII Character 1 ASCII Character 0
15
+1
8 7
0
0
16
+2
23
24
+3
31
+1
0
0
15
16
+2
+3
31
32
+4
+5
+6
+7
47
48
63
7
0
+n
7
0
+n
0
79
+9
+8
+7
+6
+5
+4
+3
+2
+1
+0
Most
Significant Digit
Least
Significant Digit
Byte Word n
Byte Word 1
Byte Word 0
+1
Signed Byte
Signed Quad
Word*
Unsigned
Word
Packed BCD
String
Pointer
ASCII
Floating
Point*
Binary Coded
Decimal (BCD)
Signed Word
Signed Double
Word*
Unsigned Byte
MSB
Sign Bit
Sign Bit
MSB
Sign Bit
Sign Bit
Sign Bit
7
0
+n
7
0
+n
7
0
7
0
MSB
MSB
MSB
7
0 7
0
0
+1
7
0 7
0
0
+1
7
0 7
0
0
+1
Magnitude
Exponent
Magnitude
Selector
Offset
Magnitude
Magnitude
Magnitude
Magnitude
Magnitude
A1027-0B
Содержание 80C186XL
Страница 1: ...80C186XL 80C188XL Microprocessor User s Manual...
Страница 2: ...80C186XL 80C188XL Microprocessor User s Manual 1995...
Страница 18: ...1 Introduction...
Страница 19: ......
Страница 27: ......
Страница 28: ...2 Overview of the 80C186 Family Architecture...
Страница 29: ......
Страница 79: ......
Страница 80: ...3 Bus Interface Unit...
Страница 81: ......
Страница 127: ......
Страница 128: ...4 Peripheral Control Block...
Страница 129: ......
Страница 137: ......
Страница 138: ...5 ClockGenerationand Power Management...
Страница 139: ......
Страница 154: ...6 Chip Select Unit...
Страница 155: ......
Страница 178: ...7 Refresh Control Unit...
Страница 179: ......
Страница 193: ......
Страница 194: ...8 Interrupt Control Unit...
Страница 195: ......
Страница 227: ......
Страница 228: ...9 Timer Counter Unit...
Страница 229: ......
Страница 253: ......
Страница 254: ...10 Direct Memory Access Unit...
Страница 255: ......
Страница 283: ......
Страница 284: ...11 Math Coprocessing...
Страница 285: ......
Страница 302: ...12 ONCE Mode...
Страница 303: ......
Страница 306: ...A 80C186 Instruction Set Additions and Extensions...
Страница 307: ......
Страница 318: ...B Input Synchronization...
Страница 319: ......
Страница 322: ...C Instruction Set Descriptions...
Страница 323: ......
Страница 371: ......
Страница 372: ...D Instruction Set Opcodes and Clock Cycles...
Страница 373: ......
Страница 396: ...Index...
Страница 397: ......