Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

AT90S8535 Datasheet(PDF) 25 Page - ATMEL Corporation

Part # AT90S8535
Description  8-bit Microcontroller with 8K Bytes In-System Programmable Flash
Download  127 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90S8535 Datasheet(HTML) 25 Page - ATMEL Corporation

Back Button AT90S8535 Datasheet HTML 21Page - ATMEL Corporation AT90S8535 Datasheet HTML 22Page - ATMEL Corporation AT90S8535 Datasheet HTML 23Page - ATMEL Corporation AT90S8535 Datasheet HTML 24Page - ATMEL Corporation AT90S8535 Datasheet HTML 25Page - ATMEL Corporation AT90S8535 Datasheet HTML 26Page - ATMEL Corporation AT90S8535 Datasheet HTML 27Page - ATMEL Corporation AT90S8535 Datasheet HTML 28Page - ATMEL Corporation AT90S8535 Datasheet HTML 29Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 25 / 127 page
background image
25
AT90S/LS8535
1041H–11/01
Interrupt Handling
The AT90S8535 has two 8-bit interrupt mask control registers: GIMSK (General Inter-
rupt Mask register) and TIMSK (Timer/Counter Interrupt Mask register).
When an interrupt occurs, the Global Interrupt Enable I-bit is cleared (zero) and all inter-
rupts are disabled. The user software can set (one) the I-bit to enable nested interrupts.
The I-bit is set (one) when a Return from Interrupt instruction (RETI) is executed.
When the Program Counter is vectored to the actual interrupt vector in order to execute
the interrupt handling routine, hardware clears the corresponding flag that generated the
interrupt. Some of the interrupt flags can also be cleared by writing a logical “1” to the
flag bit position(s) to be cleared. If an interrupt condition occurs when the corresponding
interrupt enable bit is cleared (zero), the interrupt flag will be set and remembered until
the interrupt is enabled or the flag is cleared by software.
If one or more interrupt conditions occur when the global interrupt enable bit is cleared
(zero), the corresponding interrupt flag(s) will be set and remembered until the global
interrupt enable bit is set (one) and will be executed by order of priority.
Note that external level interrupt does not have a flag and will only be remembered for
as long as the interrupt condition is active.
Note that the Status Register is not automatically stored when entering an interrupt rou-
tine and restored when returning from an interrupt routine. This must be handled by
software.
General Interrupt Mask
Register – GIMSK
• Bit 7 – INT1: External Interrupt Request 1 Enable
When the INT1 bit is set (one) and the I-bit in the Status Register (SREG) is set (one),
the external pin interrupt is enabled. The Interrupt Sense Control1 bits 1/0 (ISC11 and
ISC10) in the MCU general Control Register (MCUCR) define whether the external
interrupt is activated on rising or falling edge of the INT1 pin or level sensed. Activity on
the pin will cause an interrupt request even if INT1 is configured as an output. The corre-
sponding interrupt of External Interrupt Request 1 is executed from program memory
address $002. See also “External Interrupts.”
• Bit 6 – INT0: External Interrupt Request 0 Enable
When the INT0 bit is set (one) and the I-bit in the Status Register (SREG) is set (one),
the external pin interrupt is enabled. The Interrupt Sense Control0 bits 1/0 (ISC01 and
ISC00) in the MCU general Control Register (MCUCR) define whether the external
interrupt is activated on rising or falling edge of the INT0 pin or level sensed. Activity on
the pin will cause an interrupt request even if INT0 is configured as an output. The corre-
Table 6. Reset Source Identification
EXTRF
PORF
Reset Source
0
0
Watchdog Reset
0
1
Power-on Reset
1
0
External Reset
1
1
Power-on Reset
Bit
7
6
5
4
3
2
1
0
$3B ($5B)
INT1
INT0
––
GIMSK
Read/Write
R/W
R/W
R
R
R
R
R
R
Initial Value
0
0
0
0
0
0
0
0


Similar Part No. - AT90S8535

ManufacturerPart #DatasheetDescription
logo
ATMEL Corporation
AT90S8535 ATMEL-AT90S8535 Datasheet
482Kb / 10P
   8-Bit Microcontroller with 4K/8K Bytes In-System Programmable Flash
logo
List of Unclassifed Man...
AT90S8535 ETC2-AT90S8535 Datasheet
75Kb / 2P
   AVR-P40B-8535 PROTOTYPE BOARD WITH 10 PIN ICSP CONNECTOR FOR AT90S8535 AVR MICROCONTROLLERS
logo
ATMEL Corporation
AT90S8535 ATMEL-AT90S8535 Datasheet
2Mb / 61P
   AVR Studio Compatible
Rev. 1925C-AVR-3/03
AT90S8535-8AC ATMEL-AT90S8535-8AC Datasheet
482Kb / 10P
   8-Bit Microcontroller with 4K/8K Bytes In-System Programmable Flash
AT90S8535-8AI ATMEL-AT90S8535-8AI Datasheet
482Kb / 10P
   8-Bit Microcontroller with 4K/8K Bytes In-System Programmable Flash
More results

Similar Description - AT90S8535

ManufacturerPart #DatasheetDescription
logo
ATMEL Corporation
ATMEGA48V ATMEL-ATMEGA48V_06 Datasheet
3Mb / 374P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
ATMEGA88 ATMEL-ATMEGA88_1 Datasheet
369Kb / 10P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
AT89LP51 ATMEL-AT89LP51 Datasheet
4Mb / 113P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
ATMEGA8515 ATMEL-ATMEGA8515_10 Datasheet
1Mb / 257P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
AT89S52 ATMEL-AT89S52_08 Datasheet
576Kb / 38P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
ATMEGA88 ATMEL-ATMEGA88 Datasheet
210Kb / 20P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
ATTINY25B ATMEL-ATTINY25B Datasheet
254Kb / 7P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
AT90PWM3 ATMEL-AT90PWM3 Datasheet
3Mb / 365P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
AT90PWM1 ATMEL-AT90PWM1 Datasheet
399Kb / 20P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
AT89S52 ATMEL-AT89S52_05 Datasheet
478Kb / 39P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
AT90S8515 ATMEL-AT90S8515_01 Datasheet
2Mb / 112P
   8-bit Microcontroller with 8K Bytes In-System Programmable Flash
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 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL




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

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   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