AT90CAN64 Atmel Corporation, AT90CAN64 Datasheet - Page 199

• Manufacturer Part Number: AT90CAN64
• Manufacturer: Atmel Corporation

Specifications of AT90CAN64

• Flash (kbytes): 64 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): 4
• Eeprom (bytes): 2048
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• 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

17.11.9
17.11.10 USART1 Baud Rate Registers – UBRR1L and UBRR1H
7679H–CAN–08/08
USART0 Baud Rate Registers – UBRR0L and UBRR0H
• Bit 2:1 – UCSZn1:0: Character Size
The UCSZn1:0 bits combined with the UCSZn2 bit in UCSRnB sets the number of data bits
(Character SiZe) in a frame the Receiver and Transmitter use.
Table 17-7.
• Bit 0 – UCPOLn: Clock Polarity
This bit is used for synchronous mode only. Write this bit to zero when asynchronous mode is
used. The UCPOLn bit sets the relationship between data output change and data input sample,
and the synchronous clock (XCKn).
Table 17-8.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
UCPOLn
UCSZn2
0
1
0
0
0
0
1
1
1
1
UCSZn Bits Settings
UCPOLn Bit Settings
Transmitted Data Changed
(Output of TxDn Pin)
Rising XCK Edge
Falling XCK Edge
R/W
R/W
15
15
R
R
–
7
0
0
–
7
0
0
R/W
R/W
14
14
R
R
–
6
0
0
–
6
0
0
UCSZn1
0
0
1
1
0
0
1
1
R/W
R/W
13
13
R
R
–
5
0
0
–
5
0
0
R/W
R/W
12
12
–
4
R
0
0
–
4
R
0
0
UBRR0[7:0]
UBRR1[7:0]
UCSZn0
R/W
R/W
R/W
R/W
11
11
3
0
0
3
0
0
0
1
0
1
0
1
0
1
R/W
R/W
R/W
R/W
10
10
UBRR0[11:8]
UBRR1[11:8]
2
0
0
2
0
0
Received Data Sampled
(Input on RxDn Pin)
Falling XCK Edge
Rising XCK Edge
AT90CAN32/64/128
Character Size
5-bit
6-bit
7-bit
8-bit
Reserved
Reserved
Reserved
9-bit
R/W
R/W
R/W
R/W
9
1
0
0
9
1
0
0
R/W
R/W
R/W
R/W
8
0
0
0
8
0
0
0
UBRR0H
UBRR1H
UBRR0L
UBRR1L
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