參數(shù)資料
型號： MC68HC705C9ACP
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： Microcontrollers
中文描述： 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP40
封裝： PLASTIC, DIP-40
文件頁數(shù)： 107/160頁
文件大?。?/td> 2076K
代理商： MC68HC705C9ACP
Serial Peripheral Interface (SPI)
Functional Description
MC68HC705C9A — Rev. 4.0
Advance Information
MOTOROLA
Serial Peripheral Interface (SPI)
For More Information On This Product,
Go to: www.freescale.com
107
10.5 Functional Description
Figure 10-2
shows a block diagram of the serial peripheral interface
circuitry. When a master device transmits data to a slave via the MOSI
line, the slave device responds by sending data to the master device via
the master’s MISO line. This implies full duplex transmission with both
data out and data in synchronized with the same clock signal. Thus, the
byte transmitted is replaced by the byte received and eliminates the
need for separate transmit-empty and receive-full status bits. A single
status bit (SPIF) is used to signify that the I/O operation has been
completed.
Figure 10-2. Serial Peripheral Interface Block Diagram
6
7
5
4
3
2
1
0
SPE
WCOL
BIT 6
SPIE
SPIF
BIT 7
SPI CONTROL REGISTER (SPCR)
SPI STATUS REGISTER (SPSR)
SPI DATA REGISTER (SPDR)
MSTR
MODF
BIT 4
CPOL
0
BIT 3
CPHA
0
BIT 2
SPR1
0
SPR2
0
$000A
$000B
$000C
0
BIT 5
BIT 1
BIT 0
DWOM
SPI SHIFT REGISTER
DIVIDER
÷
4
CLOCK
LOGIC
SPDR ($000C)
7 6 5 4 3 2 1 0
MODF
WCOL
SPIF
SPR1
SPR0
CPOL
CPHA
MSTR
SPE
MSTR
SPIE
PD3/
MOSI
PD2/
MISO
÷
2
÷
32
÷
16
SELECT
SPI
CONTROL
INTERNAL DATA BUS
S
M
S
M
INTERNAL
CLOCK
(XTAL
÷
2)
SPI CLOCK (MASTER)
SPI INTERRUPT REQUEST
S
PD4/
SCK
PD5/
SS
(SLAVE)
SPI
SPI
CLOCK
(MASTER)
CLOCK
F
Freescale Semiconductor, Inc.
n
.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705C9ACPE 制造商:Freescale Semiconductor 功能描述:
MC68HC705C9AFNE 功能描述:8位微控制器 -MCU 8B MCU 352 BYTES RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC68HC705C9AVFNE 功能描述:8位微控制器 -MCU 8B MCU 352 BYTES RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC68HC705E6CDW 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
MC68HC705G1B 制造商:Rochester Electronics LLC 功能描述:- Bulk
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