参数资料
型号: MC68HC11F1CFN4
厂商: Freescale Semiconductor
文件页数: 3/158页
文件大小: 0K
描述: IC MCU 512 EEPROM 4MHZ 68-PLCC
标准包装: 18
系列: HC11
核心处理器: HC11
芯体尺寸: 8-位
速度: 4MHz
连通性: SCI,SPI
外围设备: POR,WDT
输入/输出数: 30
程序存储器类型: ROMless
EEPROM 大小: 512 x 8
RAM 容量: 1K x 8
电压 - 电源 (Vcc/Vdd): 4.75 V ~ 5.25 V
数据转换器: A/D 8x8b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 68-LCC(J 形引线)
包装: 管件
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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