參數(shù)資料
型號(hào)： C8051F015
廠商： Cygnal Technologies
英文描述： 25 MIPS,32k Flash,2.25k Ram,10bit ADC,64 Pin MCU(25 MIPS,32k 閃速存儲(chǔ)器,2.25k Ram,10位 ADC,64 腳 MCU)
中文描述： 25 MIPS的，32K閃存，2.25k羊，10位ADC，64引腳微控制器（25 MIPS的，32K的閃速存儲(chǔ)器，2.25k羊，10位ADC和64腳微控制器）
文件頁數(shù)： 120/170頁
文件大?。?/td> 1294K
代理商： C8051F015
Page 120
CYGNAL Integrated Products, Inc.
2001
4.2001; Rev. 1.3
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
PRELIMINARY
16.6.5. Status Register
The SMB0STA Status register holds an 8-bit status code indicating the current state of the SMBus. There are 28
possible SMBus states, each with a corresponding unique status code. The five most significant bits of the status
code vary while the three least-significant bits of a valid status code are fixed at zero when SI = 1. Therefore, all
possible status codes are multiples of eight. This facilitates the use of status codes in software as an index used to
branch to appropriate service routines (allowing 8 bytes of code to service the state or jump to a more extensive
service routine).
For the purposes of user software, the contents of the SMB0STA register is only defined when the SI flag is logic 1.
Software should never write to the SMB0STA register. Doing so will yield indeterminate results. The 28 SMBus
states, along with their corresponding status codes, are given in Table 16.1.
Figure 16.8. SMB0STA: SMBus Status Register
R/W
STA7
Bit7
R/W
STA6
Bit6
R/W
STA5
Bit5
R/W
STA4
Bit4
R/W
STA3
Bit3
R/W
STA2
Bit2
R/W
STA1
Bit1
R/W
STA0
Bit0
Reset Value
11111000
SFR Address:
0xC1
Bits7-3: STA7-STA3: SMBus Status Code.
These bits contain the SMBus Status Code. There are 28 possible status codes. Each status
code corresponds to a single SMBus state. A valid status code is present in SMB0STA
when the SI flag (SMB0CN.3) is set. The content of SMB0STA is not defined when the SI
flag is logic 0. Writing to the SMB0STA register at any time will yield indeterminate
results.
Bits2-0: STA2-STA0: The three least significant bits of SMB0STA are always read as logic 0 when
the SI flag is logic 1.
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C8051F016 25 MIPS,32k Flash,2.25k Ram,10bit ADC,48 Pin MCU(25 MIPS,32k 閃速存儲(chǔ)器,2.25k Ram,10位 ADC,48 腳 MCU)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
C8051F015DK 功能描述:開發(fā)板和工具包 - 8051 Dev Kit for F015-19 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:
C8051F015-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
C8051F015-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
C8051F015R 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
C8051F015TB 功能描述:開發(fā)板和工具包 - 8051 USE 634-C8051F005TB 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:
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