参数资料
型号: MC68HC05C9AB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP42
封装: SHRINK, PLASTIC, DIP-42
文件页数: 147/160页
文件大小: 4128K
代理商: MC68HC05C9AB
Serial Communications Interface (SCI)
SCI I/O Registers
MC68HC05C9A Rev. 4.0
General Release Specification
Serial Communications Interface (SCI)
NON-DISCLOSURE
AGREEMENT
REQUIRED
SCR2 — SCR0–SCI Baud Rate Select Bits
These read/write bits select the SCI baud rate, as shown in Table 9-
2. Resets have no effect on the SCR2-SCR0 bits.
Table 9-2. Baud Rate Selection
SCR[2:0]
SCI Baud Rate (Baud)
000
Prescaled Clock
÷ 1
001
Prescaled Clock
÷ 2
010
Prescaled Clock
÷ 4
011
Prescaled Clock
÷ 8
100
Prescaled Clock
÷ 16
101
Prescaled Clock
÷ 32
110
Prescaled Clock
÷ 64
111
Prescaled Clock
÷ 128
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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