Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

IC80C51 Datasheet(PDF) 11 Page - Integrated Circuit Solution Inc

Part # IC80C51
Description  CMOS SINGLE CHIP 8-BIT MICROCONTROLLER
Download  44 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ICSI [Integrated Circuit Solution Inc]
Direct Link  http://www.icsi.com.tw
Logo ICSI - Integrated Circuit Solution Inc

IC80C51 Datasheet(HTML) 11 Page - Integrated Circuit Solution Inc

Back Button IC80C51 Datasheet HTML 7Page - Integrated Circuit Solution Inc IC80C51 Datasheet HTML 8Page - Integrated Circuit Solution Inc IC80C51 Datasheet HTML 9Page - Integrated Circuit Solution Inc IC80C51 Datasheet HTML 10Page - Integrated Circuit Solution Inc IC80C51 Datasheet HTML 11Page - Integrated Circuit Solution Inc IC80C51 Datasheet HTML 12Page - Integrated Circuit Solution Inc IC80C51 Datasheet HTML 13Page - Integrated Circuit Solution Inc IC80C51 Datasheet HTML 14Page - Integrated Circuit Solution Inc IC80C51 Datasheet HTML 15Page - Integrated Circuit Solution Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 44 page
background image
Integrated Circuit Solution Inc.
11
MC001-0B
IC80C51
IC80C31
The detail description of each bit is as follows:
PSW:
Program Status Word. Bit Addressable.
7
6
54321
0
CY
AC
F0
RS1
RS0
OV
P
Register Description:
CY
PSW.7
Carry flag.
AC
PSW.6
Auxiliary carry flag.
F0
PSW.5
Flag 0 available to the user for
general purpose.
RS1
PSW.4
Register bank selector bit 1.(1)
RS0
PSW.3
Register bank selector bit 0.(1)
OV
PSW.2
Overflow flag.
PSW.1
Usable as a general purpose flag
P
PSW.0
Parity flag. Set/Clear by hardware each
instruction cycle to indicate an odd/even
number of “1” bits in the accumulator.
Note:
1. The value presented by RS0 and RS1 selects the corre-
sponding register bank.
RS1
RS0
Register Bank
Address
0
0
0
00H-07H
0
1
1
08H-0FH
1
0
2
10H-17H
1
1
3
18H-1FH
PCON:
Power Control Register. Not Bit Addressable.
7
6
54321
0
SMOD
GF1
GF0
PD
IDL
Register
Description:
SMOD
Double baud rate bit. If Timer 1 is used to generate
baud rate and SMOD=1, the baud rate is doubled
when the serial port is used in modes 1, 2, or 3.
Not implemented, reserve for future use.(1)
Not implemented, reserve for future use.(1)
Not implemented, reserve for future use.(1)
GF1
General purpose flag bit.
GF0
General purpose flag bit.
PD
Power-down bit. Setting this bit activates power-
down mode.
IDL
Idle mode bit. Setting this bit activates idle mode.
operation in the IC80C51/31. If 1s are written to
PD and IDL at the same time, PD takes precedence.
Note:
1. User software should not write 1s to reserved bits. These
bits may be used in future products to invoke new features.
IE:
Interrupt Enable Register. Bit Addressable.
7
6
54321
0
EA
ES
ET1
EX1
ET0 EX0
Register Description:
EA
IE.7
Disable all interrupts. If EA=0, no interrupt
will be acknowledged. If EA=1, each
interrupt source is individually enabled
or disabled by setting or clearing its
enable bit.
IE.6
Not implemented, reserve for future use.
(5)
IE.5
Not implemented, reserve for future use.
(5)
ES
IE.4
Enable or disable the serial port interrupt.
ET1
IE.3
Enable or disable the Timer 1 overflow
interrupt.
EX1
IE.2
Enable or disable External Interrupt 1.
ET0
IE.1
Enable or disable the Timer 0 overflow
interrupt.
EX0
IE.0
Enable or disable External Interrupt 0.
Note: To use any of the interrupts in the 80C51 Family, the
following three steps must be taken:
1. Set the
EA (enable all) bit in the IE register to 1.
2. Set the coresponding individual interrupt enable bit in
the IE register to 1.
3. Begin the interrupt service routine at the corresponding
Vector Address of that interrupt (see below).
Interrupt Source
Vector Address
IE0
0003H
TF0
000BH
IE1
0013H
TF1
001BH
RI & TI
0023H
4. In addition, for external interrupts, pins
INT0 and INT1
(P3.2 and P3.3) must be set to 1, and depending on
whether the interrupt is to be level or transition activated,
bits IT0 or IT1 in the TCON register may need to be set to
0 or 1.
ITX = 0 level activated (X = 0, 1)
ITX = 1 transition activated
5. User software should not write 1s to reserved bits. These
bits may be used in future products to invoke new features.


Similar Part No. - IC80C51

ManufacturerPart #DatasheetDescription
logo
Integrated Circuit Solu...
IC80C52 ICSI-IC80C52 Datasheet
274Kb / 48P
   CMOS SINGLE CHIP 8-BIT MICROCONTROLLER
IC80C52-12PL ICSI-IC80C52-12PL Datasheet
274Kb / 48P
   CMOS SINGLE CHIP 8-BIT MICROCONTROLLER
IC80C52-12PQ ICSI-IC80C52-12PQ Datasheet
274Kb / 48P
   CMOS SINGLE CHIP 8-BIT MICROCONTROLLER
IC80C52-12W ICSI-IC80C52-12W Datasheet
274Kb / 48P
   CMOS SINGLE CHIP 8-BIT MICROCONTROLLER
IC80C52-24PL ICSI-IC80C52-24PL Datasheet
274Kb / 48P
   CMOS SINGLE CHIP 8-BIT MICROCONTROLLER
More results

Similar Description - IC80C51

ManufacturerPart #DatasheetDescription
logo
Infineon Technologies A...
SAB80C515 INFINEON-SAB80C515 Datasheet
668Kb / 56P
   8-Bit CMOS Single-Chip Microcontroller
02.96
SAB80C517 INFINEON-SAB80C517 Datasheet
1Mb / 61P
   8-Bit CMOS Single-Chip Microcontroller
04.95
logo
Samsung semiconductor
S3F8647 SAMSUNG-S3F8647 Datasheet
1Mb / 399P
   8-bit single-chip CMOS microcontroller
logo
NXP Semiconductors
83C654 PHILIPS-83C654 Datasheet
258Kb / 24P
   CMOS single-chip 8-bit microcontroller
1998 Jan 06
logo
Siemens Semiconductor G...
SAB80C517A SIEMENS-SAB80C517A_1 Datasheet
2Mb / 137P
   8-Bit CMOS Single-Chip Microcontroller
SAB80C517 SIEMENS-SAB80C517_05 Datasheet
3Mb / 323P
   8-Bit CMOS Single-Chip Microcontroller
logo
Integrated Circuit Solu...
IC80C32 ICSI-IC80C32 Datasheet
274Kb / 48P
   CMOS SINGLE CHIP 8-BIT MICROCONTROLLER
logo
Integral Corp.
IN80C32N INTEGRAL-IN80C32N Datasheet
117Kb / 2P
   CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
logo
Infineon Technologies A...
SAB80C515A INFINEON-SAB80C515A Datasheet
899Kb / 57P
   8-Bit CMOS Single-Chip Microcontroller
08.95
SAB80C517A INFINEON-SAB80C517A Datasheet
1Mb / 77P
   8-Bit CMOS Single-Chip Microcontroller
1994-05-01
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


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
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