Zakładka z wyszukiwarką danych komponentów
  Polish  ▼
ALLDATASHEET.PL

X  

CS80C286-20 Arkusz danych(PDF) 7 Page - Intersil Corporation

Numer części CS80C286-20
Szczegółowy opis  High Performance Microprocessor with Memory Management and Protection
Download  60 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Producent  INTERSIL [Intersil Corporation]
Strona internetowa  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

CS80C286-20 Arkusz danych(HTML) 7 Page - Intersil Corporation

Back Button CS80C286-20 Datasheet HTML 3Page - Intersil Corporation CS80C286-20 Datasheet HTML 4Page - Intersil Corporation CS80C286-20 Datasheet HTML 5Page - Intersil Corporation CS80C286-20 Datasheet HTML 6Page - Intersil Corporation CS80C286-20 Datasheet HTML 7Page - Intersil Corporation CS80C286-20 Datasheet HTML 8Page - Intersil Corporation CS80C286-20 Datasheet HTML 9Page - Intersil Corporation CS80C286-20 Datasheet HTML 10Page - Intersil Corporation CS80C286-20 Datasheet HTML 11Page - Intersil Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 60 page
background image
7
The 80C286 can be single-stepped using only the CPU
clock. This state can be maintained as long as necessary.
Single step clock information allows simple interface circuitry
to provide critical information for system debug.
Static design also allows very low frequency operation
(down to DC). In a power critical situation, this can provide
low power operation since 80C286 power dissipation is
directly related to operating frequency. As the system fre-
quency is reduced, so is the operating power until, ulti-
mately, with the clock stopped in phase two of the processor
clock cycle, the 80C286 power requirement is the standby
current (5mA maximum).
80C286 Base Architecture
The 80C86, 80C88, and 80C286 CPU family all contain the
same basic set of registers, instructions, and addressing
modes. The 80C286 processor is upwardly compatible with
the 80C86 and 80C88 CPU's.
Register Set
The 80C286 base architecture has fifteen registers as
shown in Figure 1. These registers are grouped into the fol-
lowing four categories.
GENERAL REGISTERS: Eight 16-bit general purpose regis-
ters used to contain arithmetic and logical operands. Four of
these (AX, BX, CX and DX) can be used either in their
entirety as 16-bit words or split into pairs of separate 8-bit
registers.
SEGMENT REGISTERS: Four 16-bit special purpose regis-
ters select, at any given time, the segments of memory that
are immediately addressable for code, stack and data. (For
usage, refer to Memory Organization.)
BASE AND INDEX REGISTERS: Four of the general pur-
pose registers may also be used to determine offset
addresses of operands in memory. These registers may
contain base addresses or indexes to particular locations
within a segment. The addressing mode determines the spe-
cific registers used for operand address calculations.
STATUS AND CONTROL REGISTERS: Three 16-bit spe-
cial purpose registers record or control certain aspects of the
80C286 processor state. These include the Flags register
and Machine Status Word register shown in Figure 2, and
the Instruction Pointer, which contains the offset address of
the next sequential instruction to be executed.
Flags Word Description
The Flags word (Flags) records specific characteristics of
the result of logical and arithmetic instructions (bits 0, 2, 4, 6,
7 and 11) and controls the operation of the 80C286 within a
given operating mode (bits 8 and 9). Flags is a 16-bit regis-
ter. The function of the flag bits is given in Table 1.
AH
AL
DL
CL
BL
DH
CH
BH
AX
DX
CX
BX
BP
SI
DI
SP
BYTE
ADDRESSABLE
(8-BIT
REGISTER
NAMES
SHOWN)
MULTIPLY/DIVIDE
I/O INSTRUCTIONS
LOOP/SHIFT/REPEAT
BASE REGISTERS
COUNT
INDEX REGISTERS
STACK POINTER
15
0
0
7
0
7
SPECIAL
REGISTER
FUNCTIONS
16-BIT
REGISTER
NAME
GENERAL
REGISTERS
CS
DS
SS
ES
0
15
CODE SEGMENT
SEGMENT
REGISTERS
SELECTOR
DATA SEGMENT
SELECTOR
STACK SEGMENT
SELECTOR
EXTRA SEGMENT
SELECTOR
F
0
15
FLAGS
INSTRUCTION
MACHINE
POINTER
STATUS WORD
IP
MSW
STATUS AND CONTROL
REGISTERS
FIGURE 1. REGISTER SET
80C286


Podobny numer części - CS80C286-20

ProducentNumer częściArkusz danychSzczegółowy opis
logo
Intersil Corporation
CS80C286-20 INTERSIL-CS80C286-20 Datasheet
365Kb / 13P
   High Performance Microprocessor with Memory Management and Protection
March 1997
CS80C286-20 INTERSIL-CS80C286-20 Datasheet
756Kb / 60P
   High Performance Microprocessor with Memory Management and Protection
More results

Podobny opis - CS80C286-20

ProducentNumer częściArkusz danychSzczegółowy opis
logo
Intersil Corporation
80C286 INTERSIL-80C286 Datasheet
365Kb / 13P
   High Performance Microprocessor with Memory Management and Protection
March 1997
logo
Advanced Micro Devices
80286 AMD-80286 Datasheet
3Mb / 62P
   HIGH PERFORMANCE MICROPROCESSOR WITH MEMORY MANAGEMENT AND PROTECTION
logo
Renesas Technology Corp
80C286 RENESAS-80C286 Datasheet
2Mb / 65P
   High Performance Microprocessor with Memory Management and Protection
logo
Intersil Corporation
80C286883 INTERSIL-80C286883 Datasheet
508Kb / 13P
   High Performance Microprocessor with Memory Management and Protection
80C286 INTERSIL-80C286_1 Datasheet
756Kb / 60P
   High Performance Microprocessor with Memory Management and Protection
logo
Intel Corporation
M80C286 INTEL-M80C286 Datasheet
957Kb / 60P
   HIGH PERFORMANCE CHMOS MICROPROCESSOR WITH MEMORY MANAGEMENT AND PROTECTION
NG80386DX33 INTEL-NG80386DX33 Datasheet
1Mb / 139P
   32-BIT CHMOS MICROPROCESSOR WITH INTEGRATED MEMORY MANAGEMENT
80960MC INTEL-80960MC Datasheet
406Kb / 39P
   EMBEDDED 32-BIT MICROPROCESSOR WITH INTEGRATED FLOATING-POINT UNIT AND MEMORY MANAGEMENT UNIT
logo
Dynex Semiconductor
MA31751 DYNEX-MA31751 Datasheet
160Kb / 17P
   Memory Management & Block Protection Unit
logo
RICOH electronics devic...
R5104V RICOH-R5104V Datasheet
794Kb / 20P
   Microprocessor power management with Watchdog Timer
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60


Arkusz danych Pobierz

Go To PDF Page


Link URL




Polityka prywatności
ALLDATASHEET.PL
Czy Alldatasheet okazała się pomocna?  [ DONATE ] 

O Alldatasheet   |   Reklama   |   Kontakt   |   Polityka prywatności   |   Linki   |   Lista producentów
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com