AT90CAN32 Automotive Atmel Corporation, AT90CAN32 Automotive Datasheet - Page 143
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AT90CAN32 Automotive
Manufacturer Part Number
AT90CAN32 Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(431 pages)
2.AT90CAN128_AUTOMOTIVE.pdf
(16 pages)
3.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
Specifications of AT90CAN32 Automotive
Flash (kbytes)
32 Kbytes
Pin Count
64
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
53
Ext Interrupts
8
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Uart
2
Can
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
2
Eeprom (bytes)
1024
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 125
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
4
Output Compare Channels
8
Input Capture Channels
2
Pwm Channels
7
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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13.11.19 Timer/Counter1 Interrupt Flag Register – TIFR1
13.11.20 Timer/Counter3 Interrupt Flag Register – TIFR3
7682C–AUTO–04/08
• Bit 2 – OCIEnB: Output Compare B Match Interrupt Enable
When this bit is written to one, and the I-flag in the Status Register is set (interrupts globally
enabled), the Timer/Countern Output Compare B Match interrupt is enabled. The corresponding
Interrupt Vector
TIFRn, is set.
• Bit 1 – OCIEnA: Output Compare A Match Interrupt Enable
When this bit is written to one, and the I-flag in the Status Register is set (interrupts globally
enabled), the Timer/Countern Output Compare A Match interrupt is enabled. The corresponding
Interrupt Vector
TIFRn, is set.
• Bit 0 – TOIEn: Timer/Counter Overflow Interrupt Enable
When this bit is written to one, and the I-flag in the Status Register is set (interrupts globally
enabled), the Timer/Countern Overflow interrupt is enabled. The corresponding Interrupt Vector
(See “Interrupts” on page
• Bit 7..6 – Reserved Bits
These bits are reserved for future use.
• Bit 5 – ICFn: Input Capture Flag
This flag is set when a capture event occurs on the ICPn pin. When the Input Capture Register
(ICRn) is set by the WGMn3:0 to be used as the TOP value, the ICFn flag is set when the
counter reaches the TOP value.
ICFn is automatically cleared when the Input Capture Interrupt Vector is executed. Alternatively,
ICFn can be cleared by writing a logic one to its bit location.
• Bit 4 – Reserved Bit
This bit is reserved for future use.
• Bit 3 – OCFnC: Output Compare C Match Flag
This flag is set in the timer clock cycle after the counter (TCNTn) value matches the Output
Compare Register C (OCRnC).
Note that a Forced Output Compare (FOCnC) strobe will not set the OCFnC flag.
OCFnC is automatically cleared when the Output Compare Match C Interrupt Vector is exe-
cuted. Alternatively, OCFnC can be cleared by writing a logic one to its bit location.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
R
R
7
–
0
7
–
0
(See “Interrupts” on page
(See “Interrupts” on page
R
R
6
–
0
6
–
0
60.) is executed when the TOVn flag, located in TIFRn, is set.
ICF1
ICF3
R/W
R/W
5
0
5
0
R
R
4
–
0
4
–
0
60.) is executed when the OCFnB flag, located in
60.) is executed when the OCFnA flag, located in
OCF1C
OCF3C
R/W
R/W
3
0
3
0
OCF1B
OCF3B
R/W
R/W
2
0
2
0
AT90CAN32/64/128
OCF1A
OCF3A
R/W
R/W
1
0
1
0
TOV1
TOV3
R/W
R/W
0
0
0
0
TIFR1
TIFR3
143
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