參數(shù)資料
型號: MC68HC11F1CPU4
廠商: Freescale Semiconductor
文件頁數(shù): 3/158頁
文件大?。?/td> 0K
描述: IC MCU 512 EEPROM 4MHZ 80-LQFP
標(biāo)準(zhǔn)包裝: 90
系列: HC11
核心處理器: HC11
芯體尺寸: 8-位
速度: 4MHz
連通性: SCI,SPI
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 30
程序存儲器類型: ROMless
EEPROM 大?。?/td> 512 x 8
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 4.75 V ~ 5.25 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 80-LQFP
包裝: 托盤
SERIAL PERIPHERAL INTERFACE
MC68HC11F1
8-2
TECHNICAL DATA
Figure 8-1 SPI Block Diagram
8.2 SPI Transfer Formats
During an SPI transfer, data is simultaneously transmitted and received. A serial clock
line synchronizes shifting and sampling of the information on the two serial data lines.
A slave select line allows individual selection of a slave SPI device; slave devices that
are not selected do not interfere with SPI bus activities. On a master SPI device, the
select line can optionally be used to indicate a multiple master bus contention. Refer
INTERNAL
MCU CLOCK
DIVIDER
÷2
÷4 ÷16 ÷32
SELECT
SPI CLOCK (MASTER)
8-BIT SHIFT REGISTER
READ DATA BUFFER
CLOCK
LOGIC
S
M
S
PIN
CONTROL
LOGIC
MISO/
PD2
MOSI/
PD3
SCK/
PD4
SS/
PD5
M
S
MSTR
SPE
DWOM
SPR1
SPR0
MSTR
SPE
SPIE
SPE
DWOM
MSTR
CPHA
CPOL
SPR1
SPR0
SPCR SPI CONTROL REGISTER
SPIF
WCOL
MODF
SPSR SPI STATUS REGISTER
SPI CONTROL
INTERNAL
DATA BUS
SPI INTERRUPT
REQUEST
MSB
LSB
8
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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