AT90CAN128-16AJ Atmel, AT90CAN128-16AJ Datasheet - Page 117
![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
Available stocks
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Manufacturer
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13.3.1
7679H–CAN–08/08
Code Examples
The following code examples show how to access the 16-bit timer registers assuming that no
interrupts updates the temporary register. The same principle can be used directly for accessing
the OCRnx and ICRn Registers. Note that when using “C”, the compiler handles the 16-bit
access.
Note:
The assembly code example returns the TCNTn value in the r17:r16 register pair.
It is important to notice that accessing 16-bit registers are atomic operations. If an interrupt
occurs between the two instructions accessing the 16-bit register, and the interrupt code
updates the temporary register by accessing the same or any other of the 16-bit timer registers,
then the result of the access outside the interrupt will be corrupted. Therefore, when both the
main code and the interrupt code update the temporary register, the main code must disable the
interrupts during the 16-bit access.
Assembly Code Examples
C Code Examples
...
; Set TCNTn to 0x01FF
ldi
ldi
sts
sts
; Read TCNTn into r17:r16
lds
lds
...
unsigned int i;
...
/* Set TCNTn to 0x01FF */
TCNTn = 0x1FF;
/* Read TCNTn into i */
i = TCNTn;
...
1. The example code assumes that the part specific header file is included.
r17,0x01
r16,0xFF
TCNTnH,r17
TCNTnL,r16
r16,TCNTnL
r17,TCNTnH
(1)
(1)
AT90CAN32/64/128
117
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