參數(shù)資料
型號(hào)： C8051F002
廠商： Cygnal Technologies
英文描述： 20 MIPS,32k Flash,256 Ram,12bit ADC,32 Pin MCU(20 MIPS,32k 閃速存儲(chǔ)器,256 Ram,12位 ADC,32 腳 MCU)
中文描述： 20 MIPS的，32K閃存，256羊，12位ADC，32引腳微控制器（20 MIPS的，32K的閃速存儲(chǔ)器，256，羊，12位ADC和32腳微控制器）
文件頁數(shù)： 119/170頁
文件大小： 1294K
代理商： C8051F002
4.2001; Rev. 1.3
CYGNAL Integrated Products, Inc.
2001
Page 119
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
PRELIMINARY
16.6.3. Data Register
The SMBus Data register SMB0DAT holds a byte of serial data to be transmitted or one that has just been received.
Data remains stable in the register as long as SI is set to logic 1. Software can safely read or write to the data register
when the SI flag is set. Software should not attempt to access the SMB0DAT register when the SMBus is enabled
and the SI flag is cleared to logic 0 since the hardware may be in the process of shifting a byte of data in or out of the
register.
Data in SMB0DAT is always shifted out MSB first. After a byte has been received, the first bit of received data is
located at the MSB of SMB0DAT. While data is being shifted out, data on the bus is simultaneously being shifted in.
Therefore, SMB0DAT always contains the last data byte present on the bus. Thus, in the event of lost arbitration, the
transition from master transmitter to slave receiver is made with the correct data in SMB0DAT.
Figure 16.6. SMB0DAT: SMBus Data Register
R/W
Bit7
R/W
Bit6
R/W
Bit5
R/W
Bit4
R/W
Bit3
R/W
Bit2
R/W
Bit1
R/W
Bit0
Reset Value
00000000
SFR Address:
0xC2
16.6.4. Address Register
The SMB0ADR Address register holds the slave address for the SMBus interface. In slave mode, the seven most-
significant bits hold the 7-bit slave address. The least significant bit, bit 0, is used to enable the recognition of the
general call address (0x00). If bit 0 is set to logic 1, the general call address will be recognized. Otherwise, the
general call address is ignored. The contents of this register are ignored when the SMBus hardware is operating in
master mode.
Figure 16.7. SMB0ADR: SMBus Address Register
R/W
SLV6
Bit7
R/W
SLV5
Bit6
R/W
SLV4
Bit5
R/W
SLV3
Bit4
R/W
SLV2
Bit3
R/W
SLV1
Bit2
R/W
SLV0
Bit1
R/W
GC
Bit0
Reset Value
00000000
SFR Address:
0xC3
Bits7-1: SLV6-SLV0: SMBus Slave Address.
These bits are loaded with the 7-bit slave address to which the SMBus will respond when
operating as a slave transmitter or slave receiver. SLV6 is the most significant bit of the
address and corresponds to the first bit of the address byte received on the SMBus.
Bit0:
GC: General Call Address Enable.
This bit is used to enable general call address (0x00) recognition.
0: General call address is ignored.
1: General call address is recognized.
Bits7-0: SMB0DAT: SMBus Data.
The SMB0DAT register contains a byte of data to be transmitted on the SMBus serial
interface or a byte that has just been received on the SMBus serial interface. The CPU can
read from or write to this register whenever the SI serial interrupt flag (SMB0CN.3) is set
to logic one. The serial data in the register remains stable as long as the SI flag is set.
When the SI flag is not set, the system may be in the process of shifting data in/out and the
CPU should not attempt to access this register.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
C8051F002-GQ 功能描述:8位微控制器 -MCU 32KB 12ADC 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
C8051F002-GQR 功能描述:8位微控制器 -MCU 32KB 12ADC 32Pin 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
C8051F002R 功能描述:8位微控制器 -MCU C 12Bit 32Pin 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
C8051F005 功能描述:8位微控制器 -MCU 32KB 12ADC 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
C8051F005/0046 制造商:Silicon Laboratories Inc 功能描述:
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