参数资料
型号: MC68HCL05C9AFB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 155/160页
文件大小: 4128K
代理商: MC68HCL05C9AFB
NON-DISCLOSURE
AGREEMENT
REQUIRED
Serial Peripheral Interface
General Release Specification
MC68HC05C9A Rev. 4.0
Serial Peripheral Interface
The SPI is double buffered on read, but not on write. If a write is
performed during data transfer, the transfer occurs uninterrupted, and
the write will be unsuccessful. This condition will cause the write collision
(WCOL) status bit in the SPSR to be set. After a data byte is shifted, the
SPIF flag of the SPSR is set.
In the master mode, the SCK pin is an output. It idles high or low,
depending on the CPOL bit in the SPCR, until data is written to the shift
register, at which point eight clocks are generated to shift the eight bits
of data and then SCK goes idle again.
In a slave mode, the slave select start logic receives a logic low at the
SS pin and a clock at the SCK pin. Thus, the slave is synchronized with
the master. Data from the master is received serially at the MOSI line
and loads the 8-bit shift register. After the 8-bit shift register is loaded, its
data is parallel transferred to the read buffer. During a write cycle, data
is written into the shift register, then the slave waits for a clock train from
the master to shift the data out on the slave’s MISO line.
Figure 10-3 illustrates the MOSI, MISO, SCK, and SS master-slave
interconnections.
Figure 10-3. Serial Peripheral Interface Master-Slave
Interconnection
SPI SHIFT REGISTER
7 6 5 4 3 2 1 0
SPI SHIFT REGISTER
7 6 5 4 3 2 1 0
SPDR ($000C)
PD3/MOSI
PD2/MISO
PD5/SS
PD4/SCK
MASTER MCU
SLAVE MCU
I/O PORT
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相关PDF资料
PDF描述
M901-01I690.5692 690.5692 MHz, OTHER CLOCK GENERATOR, CQCC36
MC68HC11E0VB2 8-BIT, 2 MHz, MICROCONTROLLER, PDIP56
MC68HC811E2MP2 8-BIT, EEPROM, 2 MHz, MICROCONTROLLER, PDIP48
MC68HC908QT1MDW 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8
MC68020FC25E 32-BIT, 25 MHz, MICROPROCESSOR, PQFP132
相关代理商/技术参数
参数描述
MC68HCP11A1CFN3 功能描述:8位微控制器 -MCU 8-bit HCMOS single chip MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
MC68HCP11A1FN 制造商:MOTORALA 功能描述:
MC68HCP11E0CP2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HCP11E0FN 功能描述:MICROCONTROLLER MCU 8ADC 3MHC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC11 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN,SCI,SPI 外围设备:POR,PWM,温度传感器,WDT 输入/输出数:21 程序存储器容量:40KB(20K x 16) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
MC68HCP11E0FNE 功能描述:8位微控制器 -MCU 8B MCU 512RAM COP A/D RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT