A000047 Arduino, A000047 Datasheet - Page 226

• Manufacturer Part Number: A000047
• Description: MCU, MPU & DSP Development Tools Mega2560
• Manufacturer: Arduino
• Series: -r
• Type: MCUr

Specifications of A000047

• Processor To Be Evaluated: ATmega2560
• Interface Type: USB, I2C, SPI
• Dimensions: 4 in x 2.1 in
• Operating Supply Voltage: 5 V
• Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: ATmega2560

2549M–AVR–09/10
Receiver will generate a parity value for the incoming data and compare it to the UPMn setting.
If a mismatch is detected, the UPEn Flag in UCSRnA will be set.
Table 21-5.
• Bit 3 – USBSn: Stop Bit Select
This bit selects the number of stop bits to be inserted by the Transmitter. The Receiver ignores
this setting.
Table 21-6.
• 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 21-7.
• 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 21-8.
UCPOLn
UCSZn2
0
1
UPMn1
0
0
0
0
1
1
1
1
0
0
1
1
UPMn Bits Settings
USBS Bit Settings
UCSZn Bits Settings
UCPOLn Bit Settings
USBSn
Transmitted Data Changed (Output of
0
1
Falling XCKn Edge
Rising XCKn Edge
UCSZn1
UPMn0
TxDn Pin)
0
0
1
1
0
0
1
1
0
1
0
1
ATmega640/1280/1281/2560/2561
UCSZn0
0
1
0
1
0
1
0
1
Received Data Sampled (Input on RxDn
Enabled, Even Parity
Enabled, Odd Parity
Stop Bit(s)
Parity Mode
Reserved
1-bit
2-bit
Disabled
Falling XCKn Edge
Rising XCKn Edge
Character Size
Pin)
Reserved
Reserved
Reserved
5-bit
6-bit
7-bit
8-bit
9-bit
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