參數(shù)資料
型號(hào): MC68L11FC0PU4
廠(chǎng)商: MOTOROLA INC
元件分類(lèi): 微控制器/微處理器
英文描述: Technical Summary 8-Bit Microcontroller
中文描述: 8-BIT, MICROCONTROLLER, PQFP80
封裝: TQFP-80
文件頁(yè)數(shù): 40/74頁(yè)
文件大小: 513K
代理商: MC68L11FC0PU4
MC68HC11F1/FC0
MOTOROLA
MC68HC11FTS/D
45
Figure 11 illustrates the SCI baud rate timing chain. The prescaler select bits determine the highest
baud rate. The rate select bits determine additional divide-by-two stages to arrive at the receiver timing
(RT) clock rate. The baud rate clock is the result of dividing the RT clock by 16.
Figure 11 SCI Baud Rate Generator Block Diagram
OSCILLATOR
AND
CLOCK GENERATOR
(
÷4)
XTAL
EXTAL
E
INTERNAL BUS CLOCK (PH2)
SCR[2:0]
÷ 3
X00
001
÷ 4
X10
÷ 13
X11
0:0:0
÷ 2
0:0:1
÷ 2
0:1:0
÷ 2
0:1:1
÷ 2
1:0:1
÷ 2
1:0:0
÷ 2
1:1:1
÷ 2
1:1:0
÷ 16
SCI Receive Baud Rate (16x)
SCI Transmit Baud Rate (1x)
÷ 9
101
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