AT90CAN32 Automotive Atmel Corporation, AT90CAN32 Automotive Datasheet - Page 142

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AT90CAN32 Automotive

Manufacturer Part Number
AT90CAN32 Automotive
Description
Manufacturer
Atmel Corporation

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
13.11.15 Input Capture Register – ICR1H and ICR1L
13.11.16 Input Capture Register – ICR3H and ICR3L
13.11.17 Timer/Counter1 Interrupt Mask Register – TIMSK1
13.11.18 Timer/Counter3 Interrupt Mask Register – TIMSK3
142
AT90CAN32/64/128
The Input Capture is updated with the counter (TCNTn) value each time an event occurs on the
ICPn pin (or optionally on the Analog Comparator output for Timer/Counter1). The Input Capture
can be used for defining the counter TOP value.
The Input Capture Register is 16-bit in size. To ensure that both the high and low bytes are read
simultaneously when the CPU accesses these registers, the access is performed using an 8-bit
temporary high byte register (TEMP). This temporary register is shared by all the other 16-bit
registers.
• Bit 7..6 – Reserved Bits
These bits are reserved for future use.
• Bit 5 – ICIEn: Input Capture 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 Input Capture interrupt is enabled. The corresponding Interrupt
Vector
• Bit 4 – Reserved Bit
This bit is reserved for future use.
• Bit 3 – OCIEnC: Output Compare C 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 C Match interrupt is enabled. The corresponding
Interrupt Vector
TIFRn, is set.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
(See “Interrupts” on page
See “Accessing 16-bit Registers” on page 116.
R/W
R/W
R
R
7
0
7
0
7
0
7
0
(See “Interrupts” on page
R/W
R/W
R
R
6
0
6
0
6
0
6
0
ICIE1
ICIE3
R/W
R/W
R/W
R/W
5
0
5
0
5
0
5
0
60.) is executed when the ICFn flag, located in TIFRn, is set.
R/W
R/W
R
R
4
0
4
0
4
0
4
0
ICR1[15:8]
ICR3[15:8]
ICR1[7:0]
ICR3[7:0]
60.) is executed when the OCFnC flag, located in
OCIE1C
OCIE3C
R/W
R/W
R/W
R/W
3
0
3
0
3
0
3
0
OCIE1B
OCIE3B
R/W
R/W
R/W
R/W
2
0
2
0
2
0
2
0
OCIE1A
OCIE3A
R/W
R/W
R/W
R/W
1
0
1
0
1
0
1
0
TOIE1
TOIE3
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
TIMSK1
TIMSK3
ICR1H
ICR3H
ICR1L
ICR3L
7682C–AUTO–04/08

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