AT90CAN128-16AJ Atmel, AT90CAN128-16AJ Datasheet - Page 157
![IC MCU AVR FLASH 128K 64TQFP](/photos/12/13/121332/313-64-tqfp_sml.jpg)
AT90CAN128-16AJ
Manufacturer Part Number
AT90CAN128-16AJ
Description
IC MCU AVR FLASH 128K 64TQFP
Manufacturer
Atmel
Series
AVR® 90CANr
Specifications of AT90CAN128-16AJ
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
CAN, EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
For Use With
ATDVK90CAN1 - KIT DEV FOR AT90CAN128 MCU
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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14.9
14.9.1
7679H–CAN–08/08
8-bit Timer/Counter Register Description
Timer/Counter2 Control Register A– TCCR2A
Figure 14-12
Figure 14-12. Timer/Counter Timing Diagram, Clear Timer on Compare Match mode, with Pres-
• Bit 7 – FOC2A: Force Output Compare A
The FOC2A bit is only active when the WGM bits specify a non-PWM mode. However, for ensur-
ing compatibility with future devices, this bit must be set to zero when TCCR2A is written when
operating in PWM mode. When writing a logical one to the FOC2A bit, an immediate compare
match is forced on the Waveform Generation unit. The OC2A output is changed according to its
COM2A1:0 bits setting. Note that the FOC2A bit is implemented as a strobe. Therefore it is the
value present in the COM2A1:0 bits that determines the effect of the forced compare.
A FOC2A strobe will not generate any interrupt, nor will it clear the timer in CTC mode using
OCR2A as TOP.
The FOC2A bit is always read as zero.
• Bit 6, 3 – WGM21:0: Waveform Generation Mode
These bits control the counting sequence of the counter, the source for the maximum (TOP)
counter value, and what type of waveform generation to be used. Modes of operation supported
by the Timer/Counter unit are: Normal mode, Clear Timer on Compare match (CTC) mode, and
Bit
Read/Write
Initial Value
TCNTn
(clk
OCRnx
(CTC)
OCFnx
clk
clk
I/O
I/O
Tn
/8)
shows the setting of OCF2A and the clearing of TCNT2 in CTC mode.
FOC2A
caler (f
W
7
0
clk_I/O
WGM20
R/W
6
0
/8)
TOP - 1
COM2A1
R/W
5
0
COM2A0
R/W
4
0
WGM21
TOP
R/W
3
0
TOP
CS22
R/W
2
0
AT90CAN32/64/128
CS21
R/W
BOTTOM
1
0
CS20
R/W
0
0
TCCR2A
BOTTOM + 1
157
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