參數(shù)資料
型號: MC68HC05CJ4FB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封裝: PLASTIC, QFP-44
文件頁數(shù): 74/114頁
文件大?。?/td> 4047K
代理商: MC68HC05CJ4FB
GENERAL RELEASE SPECIFICATION
SERIAL PERIPHERAL INTERFACE
Rev. 2.1
9-5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CPOL — Clock Polarity
CPHA — Clock Phase
These two bits are used to specify the clock format to be used in SPI operations.
Refer to Figure 9-2.
SPR1, SPR0 — SPI Clock (SCK1) Rate Select Bits
These bits are used to specify the SPI clock rate.
Table 9-1. SPI Clock Rates
SPR1
SPR0
E Clock
Divided-By
Frequency at E = 2 MHz
(Baud Rate)
0
2
1.0 MHz
0
1
4
500 kHz
1
0
16
125 kHz
1
32
62.5 kHz
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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