AT90S8535-8JC Atmel, AT90S8535-8JC Datasheet - Page 67
AT90S8535-8JC
Manufacturer Part Number
AT90S8535-8JC
Description
IC MCU 8K FLSH 8MHZ A/D 44PLCC
Manufacturer
Atmel
Series
AVR® 90Sr
Specifications of AT90S8535-8JC
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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• Bit 2 – ACIC: Analog Comparator Input Capture Enable
When set (one), this bit enables the Input Capture function in Timer/Counter1 to be trig-
gered by the Analog Comparator. The comparator output is in this case directly
connected to the Input Capture front-end logic, making the comparator utilize the noise
canceler and edge select features of the Timer/Counter1 Input Capture interrupt. When
cleared (zero), no connection between the Analog Comparator and the Input Capture
function is given. To make the comparator trigger the Timer/Counter1 Input Capture
interrupt, the TICIE1 bit in the Timer Interrupt Mask Register (TIMSK) must be set (one).
• Bits 1,0 – ACIS1, ACIS0: Analog Comparator Interrupt Mode Select
These bits determine which comparator events trigger the Analog Comparator interrupt.
The different settings are shown in Table 25.
Table 25. ACIS1/ACIS0 Settings
Note:
Caution: Using the SBI or CBI instruction on bits other than ACI in this register will write
a “1” back into ACI if it is read as set, thus clearing the flag.
ACIS1
0
0
1
1
When changing the ACIS1/ACIS0 bits, the Analog Comparator interrupt must be dis-
abled by clearing its interrupt enable bit in the ACSR register. Otherwise an interrupt can
occur when the bits are changed.
ACIS0
0
1
0
1
Interrupt Mode
Comparator Interrupt on Output Toggle
Reserved
Comparator Interrupt on Falling Output Edge
Comparator Interrupt on Rising Output Edge
AT90S/LS8535
67
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