AT90CAN64-16MU Atmel, AT90CAN64-16MU Datasheet - Page 164

• Manufacturer Part Number: AT90CAN64-16MU
• Description: IC MCU AVR 64K FLASH 64-QFN
• Manufacturer: Atmel
• Series: AVR® 90CANr

Specifications of AT90CAN64-16MU

• 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: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K 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
• Processor Series: AT90CANx
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 53
• Number Of Timers: 2
• Operating Supply Voltage: 0.5 V to 0.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATDVK90CAN1, ATADAPCAN01
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATDVK90CAN1 - KIT DEV FOR AT90CAN128 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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,