AT90CAN128-16MJ Atmel, AT90CAN128-16MJ Datasheet - Page 164
AT90CAN128-16MJ
Manufacturer Part Number
AT90CAN128-16MJ
Description
IC MCU AVR FLASH 128K 64-QFN
Manufacturer
Atmel
Series
AVR® 90CANr
Specifications of AT90CAN128-16MJ
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-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
For Use With
ATDVK90CAN1 - KIT DEV FOR AT90CAN128 MCU
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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14.11.1
164
AT90CAN32/64/128
General Timer/Counter Control Register – GTCCR
Figure 14-14. Timer/Counter2 Crystal Oscillator Connections
A external clock can also be used using TOSC1 as input. Setting AS2 and EXCLK enables this
configuration.
Figure 14-15. Timer/Counter2 External Clock Connections
For Timer/Counter2, the possible prescaled selections are: clk
clk
Setting the PSR2 bit in GTCCR resets the prescaler. This allows the user to operate with a pre-
dictable prescaler.
• Bit 1 – PSR2: Prescaler Reset Timer/Counter2
When this bit is one, the Timer/Counter2 prescaler will be reset. This bit is normally cleared
immediately by hardware. If the bit is written when Timer/Counter2 is operating in asynchronous
mode, the bit will remain one until the prescaler has been reset. The bit will not be cleared by
hardware if the TSM bit is set. Refer to the description of the
chronization Mode” on page 98
Bit
Read/Write
Initial Value
T2S
/128, clk
TSM
R/W
T2S
7
0
/256, and clk
R
6
–
0
T2S
for a description of the Timer/Counter Synchronization mode.
R
5
–
0
/1024. Additionally, clk
External
32.768 KHz
Signal
Clock
12 - 22 pF
12 - 22 pF
NC
R
4
–
0
R
3
–
0
T2S
R
2
–
0
as well as 0 (stop) may be selected.
TOSC2
TOSC1
“Bit 7 – TSM: Timer/Counter Syn-
TOSC2
TOSC1
GND
PSR2
R/W
1
0
T2S
/8, clk
PSR310
R/W
0
0
T2S
GTCCR
/32, clk
7679H–CAN–08/08
T2S
/64,
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