參數(shù)資料
型號(hào)： C8051F010
廠商： Cygnal Technologies
英文描述： 20 MIPS,32k Flash,256 Ram,10bit ADC,64 Pin MCU(20 MIPS,32k 閃速存儲(chǔ)器,256 Ram,10位 ADC,64 腳 MCU)
中文描述： 20 MIPS的，32K閃存，256羊，10位ADC，64引腳微控制器（20 MIPS的，32K的閃速存儲(chǔ)器，256，羊，10位ADC和64腳微控制器）
文件頁數(shù)： 122/170頁
文件大?。?/td> 1294K
代理商： C8051F010
Page 122
CYGNAL Integrated Products, Inc.
2001
4.2001; Rev. 1.3
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
PRELIMINARY
17. SERIAL PERIPHERAL INTERFACE BUS
The Serial Peripheral Interface (SPI) provides access to a four-wire, full-duplex, serial bus. SPI supports the
connection of multiple slave devices to a master device on the same bus. A separate slave-select signal (NSS) is
used to select a slave device and enable a data transfer between the master and the selected slave. Multiple masters
on the same bus are also supported. Collision detection is provided when two or more masters attempt a data transfer
at the same time. The SPI can operate as either a master or a slave. When the SPI is configured as a master, the
maximum data transfer rate (bits/sec) is one-half the system clock frequency.
When the SPI is configured as a slave, the maximum data transfer rate (bits/sec) for full-duplex operation is 1/10 the
system clock frequency, provided that the master issues SCK, NSS, and the serial input data synchronously with the
system clock. If the master issues SCK, NSS, and the serial input data asynchronously, the maximum data transfer
rate (bits/sec) must be less that 1/10 the system clock frequency. In the special case where the master only wants to
transmit data to the slave and does not need to receive data from the slave (i.e. half-duplex operation), the SPI slave
can receive data at a maximum data transfer rate (bits/sec) of the system clock frequency. This is provided that
the master issues SCK, NSS, and the serial input data synchronously with the system clock.
Figure 17.1. SPI Block Diagram
SFR Bus
Clock Divide
Logic
Data Path
Control
SFR Bus
Write to
SPI0DAT
Receive Data Register
SPI0DAT
0
1
2
3
4
5
6
7
Shift Register
SPI CONTROL LOGIC
Bit Count
Logic
SPI0CKR
S
C
R
5
4
S
C
R
7
S
C
R
6
S
C
R
S
C
R
3
S
C
R
2
S
C
R
1
S
C
R
0
SPI0CFG
B
C
2
1
C
K
P
H
A
C
K
P
O
L
B
C
B
C
0
F
R
S
2
F
R
S
1
F
R
S
0
SPI0CN
M
O
D
F
V
R
N
T
X
B
S
Y
S
L
V
S
E
L
M
S
T
E
N
S
P
I
E
N
W
C
O
L
S
P
I
F
R
X
O
Pin Control
Interface
SPI Clock
(Master Mode)
Pin
Control
Logic
C
R
O
S
S
B
A
R
Port I/O
Read
SPI0DAT
SPI IRQ
SYSCLK
Tx Data
Rx Data
SCK
MOSI
MISO
NSS
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C8051F010DK 功能描述:開發(fā)板和工具包 - 8051 Dev Kit for F010-12 RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評(píng)估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓:
C8051F010-GQ 功能描述:8位微控制器 -MCU 32KB 10ADC 64P MCU 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
C8051F010-GQR 功能描述:8位微控制器 -MCU 32KB 10ADC 64Pin MCU Tape and Reel 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
C8051F010R 功能描述:8位微控制器 -MCU C 10Bit 64Pin 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
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