ATAVRDISPLAYX Atmel, ATAVRDISPLAYX Datasheet - Page 254
ATAVRDISPLAYX
Manufacturer Part Number
ATAVRDISPLAYX
Description
KIT EVAL XMEGA DISPLAY
Manufacturer
Atmel
Specifications of ATAVRDISPLAYX
Main Purpose
*
Embedded
*
Utilized Ic / Part
*
Primary Attributes
*
Secondary Attributes
*
Silicon Manufacturer
Atmel
Silicon Family Name
ATxmega
Kit Contents
Board
Features
Temperature Sensor, Mono Speaker Via Audio Amplifier
Svhc
No SVHC (15-Dec-2010)
Core Architecture
AVR
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATAVRDISPLAYX
Manufacturer:
Atmel
Quantity:
135
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21.15.6
21.15.7
8077H–AVR–12/09
BAUDCTRLA - USART Baud Rate Register
BAUDCTRLB - USART Baud Rate Register
• Bit 2 - UDORD: Data Order
This bit sets the frame format. When written to one the LSB of the data word is transmitted first.
When written to zero the MSB of the data word is transmitted first. The Receiver and Transmitter
use the same setting. Changing the setting of UDORD will corrupt all ongoing communication for
both receiver and transmitter.
• Bit 1 - UCPHA: Clock Phase
The UCPHA bit setting determine if data is sampled on the leading (first) edge or tailing (last)
edge of XCKn. Refer to the
• Bit 7:0 - BSEL[7:0]: USART Baud Rate Register
This is a 12-bit value which contains the USART baud rate setting. The BAUDCTRLB contains
the four most significant bits, and the BAUDCTRLA contains the eight least significant bits of the
USART baud rate. Ongoing transmissions by the Transmitter and Receiver will be corrupted if
the baud rate is changed. Writing BAUDCTRLA will trigger an immediate update of the baud rate
prescaler.
• Bit 7:4 - BSCALE[3:0]: USART Baud Rate Scale factor
These bits select the Baud Rate Generator scale factor. The scale factor is given in two's com-
plement form from -7 (0b1001) to 7 (0b0111). The -8 (0b1000) setting is reserved. For positive
scale values the Baud Rate Generator is prescaled by 2
Rate Generator will use fractional counting, which increases the resolution. See equations in
Table 21-1 on page
• Bit 3:0 - BSEL[3:0]: USART Baud Rate Register
This is a 12-bit value which contains the USART baud rate setting. The BAUDCTRLB contains
the four most significant bits, and the BAUDCTRLA contains the eight least significant bits of the
USART baud rate. Ongoing transmissions by the Transmitter and Receiver will be corrupted if
the baud rate is changed. Writing BAUDCTRLA will trigger an immediate update of the baud rate
prescaler.
Bit
+0x07
Read/Write
Initial Value
Bit
+0x06
Read/Write
Initial Value
R/W
R/W
7
0
7
0
238.
R/W
R/W
6
0
6
0
BSCALE[3:0]
”SPI Clock Generation” on page 239
R/W
R/W
5
0
5
0
R/W
R/W
4
0
4
0
BSEL[7:0]
R/W
R/W
3
0
3
0
BSCALE
R/W
R/W
2
0
2
0
BSEL[11:8]
. For negative values the Baud
for details.
R/W
R/W
1
0
1
0
XMEGA A
R/W
R/W
0
0
0
0
BAUDCTRLA
BAUDCTRLB
254
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