19.6.3
EUSART Control and Status Register A – EUCSRA
Bit
7
UTxS3
R/W
0
6
UTxS2
R/W
0
5
UTxS1
R/W
1
4
UTxS0
R/W
1
3
URxS3
R/W
0
2
URxS2
R/W
0
1
URxS1
R/W
1
0
URxS0
R/W
1
EUCSRA
Read/Write
Initial Value
• Bit 7:4 – EUSART Transmit Character Size
The UTxS3:0 bits sets the number of data bits (Character Size) in a frame the Transmitter use.
Table 19-1. UTxS Bits Settings
UTxS3
UTxS2
UTxS1
UTxS0
Transmit Character Size
5-bit
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
6-bit
7-bit
8-bit
Reserved
Reserved
Reserved
9-bit
13-bit
14-bit
15-bit
16-bit
Reserved
Reserved
Reserved
17-bit
• Bit 3:0 – EUSART Receive Character Size
The UTxS3:0 bits sets the number of data bits (Character Size) in a frame the Receiver use.
Table 19-2. URxS Bits Settings
URxS3
URxS2
URxS1
URxS0
Receive Character Size
0
0
0
0
0
0
0
0
1
0
0
0
0
1
1
1
1
0
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
5-bit
6-bit
7-bit
8-bit
Reserved
Reserved
Reserved
9-bit
13-bit
222
AT90PWM2/3/2B/3B
4317J–AVR–08/10
ATMEL [ ATMEL ]
