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參數(shù)資料
| 型號： | MC68HC705F8FU |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 1.8 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | QFP-64 |
| 文件頁數(shù)： | 93/126頁 |
| 文件大小： | 736K |
| 代理商： | MC68HC705F8FU |
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MC68HC05F8
MOTOROLA
7-5
SERIAL PERIPHERAL INTERFACE
7
status register bit (SPIF) is set to a logic one. It does not inhibit the setting of a status bit. The
SPIE bit is cleared by reset.
SPE - Serial Peripheral Enable
When set, this bit enables the Serial I/O Port and initializes the Port D DDR such that PD5 (SDO)
is output, PD6 (SDI) is input and PD7 (SCK) is input (Slave Mode only). The Port D DDR can be
subsequently altered as the application requires and the Port D data register (except for PD5) can
be manipulated as usual, however these actions could affect the transmitted or received data.
When SPE is cleared, Port D reverts to standard parallel I/O without
affecting the Port D data
register or DDR. SPE can be read or written any time, but clearing SPE while a transmission is in
progress will abort the transmission, reset the bit count and return Port D to its normal I/O function.
Reset clears this bit.
MSTR - Master Bit
When set, this bit congures the SPI for Master Mode. This means that the transmission is initiated
by a write to the data register and the SCK pin becomes an output providing a synchronous data
clock at a xed rate of E clock divided by 4. While the device is in Master Mode, the SDO and SDI
pins do not change function. These pins behave exactly as they would in Slave Mode. Reset clears
this bit and congures the SPI for Slave operation. MSTR may be set at any time regardless of the
state of SPE. Clearing MSTR will abort any transmission in progress.
7.4.2
SPI Status Register (SPSR)
SPIF - Serial Peripheral Interface Flag
The serial peripheral data transfer ag bit noties the user that a data transfer between the device
and an external device has been completed. With the completion of the data transfer, SPIF is set,
and if SPIE is set, a serial peripheral interrupt (SPI) is generated. During the clock cycle that SPIF
is being set, a copy of the received data byte in the shift register is moved to a buffer. When the
data register is read, it is the buffer that is read.
The transfer of data is initiated by the master device writing its serial peripheral data register.
Clearing the SPIF bit is accomplished by a software sequence of accessing the serial peripheral
status register while SPIF is set and followed by a write to or a read of the serial peripheral data
register. While SPIF is set, all writes to the serial peripheral data register are inhibited until the
serial peripheral status register is read. This occurs in the master device. In the slave device, SPIF
can be cleared before the second SPIF in order to prevent an overrun condition. The SPIF bit is
cleared by reset.
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
$11
SPIF
DCOL
00-- ----
TPG
67
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相關代理商/技術參數(shù) |
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|---|---|
| MC68HC705G1B | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC68HC705J1A | 制造商:Freescale Semiconductor 功能描述: |
| MC68HC705J1ACDW | 功能描述:IC MCU 4MHZ 1.2K OTP 20-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標準包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
| MC68HC705J1ACP | 功能描述:IC MCU 4MHZ 1.2K OTP 20-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標準包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
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