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參數資料
型號: MC68HC05C8A
廠商: Motorola, Inc.
英文描述: Microcontrollers
中文描述: 微控制器
文件頁數: 94/158頁
文件大小: 773K
代理商: MC68HC05C8A
Serial Peripheral Interface (SPI)
Technical Data
MC68HC05C8A
MC68HCL05C8A
MC68HSC05C8A
Rev. 5.0
94
Serial Peripheral Interface (SPI)
MOTOROLA
As soon as SS goes low, the transaction begins and the first edge on
SCK invokes the first data sample. When CPHA = 1, the SS pin may
be thought of as a simple output enable control. See
Figure 10-1
.
SPR1 and SPR0
SPI Clock Rate Select Bits
These two bits select one of four baud rates to be used as SCK if the
device is a master; however, they have no effect in the slave mode.
See
Table 10-1.
10.6.2 Serial Peripheral Status Register
SPIF
SPI Transfer Complete Flag
The serial peripheral data transfer flag bit is set upon completion of
data transfer between the processor and external device. If SPIF
goes high and if SPIE is set, a serial peripheral interrupt is generated.
Clearing the SPIF bit is accomplished by reading the SPSR (with
SPIF set) followed by an access of the SPDR. Unless SPSR is read
(with SPIF set) first, attempts to write to SPDR are inhibited.
Table 10-1. Serial Peripheral Rate Selection
SPR1
SPR0
Bus Clock Divided By
0
0
2
0
1
4
1
0
16
1
1
32
Address: $000B
Bit 7
6
5
4
3
2
1
Bit 0
Read:
SPIF
WCOL
0
MODF
0
0
0
0
Write:
Reset
0
0
0
0
0
0
U
U
= Unimplemented
U = Unaffected
Figure 10-5. SPI Status Register (SPSR)
相關PDF資料
PDF描述
MC68HC05C9A 8-Bit Microcontroller(8位微控制器)
MC68HCL05C9A 8-Bit Microcontroller(8位微控制器)
MC68HSC05C9A 8-Bit Microcontroller(8位微控制器)
MC68HC05F2 8-Bit Microcontroller Units (MCU).(8位微控制器)
MC68HC05F6 8-Bit Microcontroller Units (MCU).(8位微控制器)
相關代理商/技術參數
參數描述
MC68HC05C8ACFN 制造商:Motorola Inc 功能描述:MicroController, 8-Bit, 44 Pin, Plastic, PLCC
MC68HC05C9 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:TECHNICAL DATA
MC68HC05C9A 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AFB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
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