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參數(shù)資料
| 型號(hào)： | MF280C31-30D |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, 30 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | QFP-44 |
| 文件頁(yè)數(shù)： | 50/80頁(yè) |
| 文件大?。?/td> | 5152K |
| 代理商： | MF280C31-30D |
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250
XMEGA A [MANUAL]
8077I–AVR–11/2012
21.15.7 BAUDCTRLB – Baud Rate register B
Bit 7:4 – BSCALE[3:0]: Baud Rate Scale factor
These bits select the baud rate generator scale factor. The scale factor is given in two's complement form from -7
(0b1001) to +7 (0b0111). The -8 (0b1000) setting is reserved. See the equations in Table 21-1 on page 233.
Bit 3:0 – BSEL[11:8]: Baud Rate bits
These are the upper 4 bits of the 12-bit value used for USART baud rate setting. BAUDCTRLA contains the eight least-
significant bits. 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
7654
3210
+0x07
BSCALE[3:0]
BSEL[11:8]
Read/Write
R/W
Initial Value
0
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