参数资料
型号: MC68HC11F1VPU2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: Technical Summary 8-Bit Microcontroller
中文描述: 8-BIT, EEPROM, 2 MHz, MICROCONTROLLER, PQFP80
封装: 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, LQFP-80
文件页数: 7/163页
文件大小: 711K
代理商: MC68HC11F1VPU2
MOTOROLA
SERIAL PERIPHERAL INTERFACE
MC68HC11F1
8-6
TECHNICAL DATA
SPIE — Serial Peripheral Interrupt Enable
Set the SPE bit to one to request a hardware interrupt sequence each time the SPIF
or MODF status ag is set. SPI interrupts are inhibited if this bit is clear or if the I bit in
the condition code register is one.
0 = SPI system interrupts disabled
1 = SPI system interrupts enabled
SPE — Serial Peripheral System Enable
When the SPE bit is set, the port D bit 2, 3, 4, and 5 pins are dedicated to the SPI func-
tion. If the SPI is in the master mode and DDRD bit 5 is set, then the port D bit 5 pin
becomes a general-purpose output instead of the SS input.
0 = SPI system disabled
1 = SPI system enabled
DWOM — Port D Wired-OR Mode
DWOM affects all port D pins.
0 = Normal CMOS outputs
1 = Open-drain outputs
MSTR — Master Mode Select
0 = Slave mode
1 = Master mode
CPOL — Clock Polarity
When the clock polarity bit is cleared and data is not being transferred, the SCK pin of
the master device has a steady state low value. When CPOL is set, SCK idles high.
CPHA — Clock Phase
The clock phase bit, in conjunction with the CPOL bit, controls the clock-data relation-
ship between master and slave. The CPHA bit selects one of two different clocking
SPR[1:0] — SPI Clock Rate Selects
These two bits select the SPI clock (SCK) rate when the device is configured as mas-
ter. When the device is configured as slave, these bits have no effect. Refer to Table
Table 8-1 SPI Clock Rates
SPR[1:0]
E Clock
Divide By
Frequency at
E = 2 MHz
Frequency at
E = 3 MHz
Frequency at
E = 4 MHz
Frequency at
E = 5 MHz
0 0
2
1.0 MHz
1.5 MHz
2.0 MHz
2.5 MHz
0 1
4
500 kHz
750 kHz
1.0 MHz
625 kHz
1 0
16
125 kHz
187.5 kHz
250 kHz
156.25 kHz
1 1
32
62.5 kHz
93.7 kHz
125 kHz
78.125 kHz
相关PDF资料
PDF描述
MC68HC11F1VPU3 Technical Summary 8-Bit Microcontroller
MC68HC11F1VPU4 Technical Summary 8-Bit Microcontroller
MI-QC211-MWY Military DC-DC Power Supplies
MI-QC211-MXY Military DC-DC Power Supplies
MI-QC211-MYY Military DC-DC Power Supplies
相关代理商/技术参数
参数描述
MC68HC11F1VPU3 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11F1VPU4 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11FC0 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11FC0CFU4 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11FC0CFU5 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller