參數(shù)資料
型號: C8051F017
廠商: Cygnal Technologies
英文描述: 25 MIPS,32k Flash,2.25k Ram,10bit ADC,32 Pin MCU(25 MIPS,32k 閃速存儲器,2.25k Ram,10位 ADC,32 腳 MCU)
中文描述: 25 MIPS的,32K閃存,2.25k羊,10位ADC,32引腳微控制器(25 MIPS的,32K的閃速存儲器,2.25k羊,10位ADC和32腳微控制器)
文件頁數(shù): 120/170頁
文件大?。?/td> 1294K
代理商: C8051F017
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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參數(shù)描述
C8051F017-GQ 功能描述:8位微控制器 -MCU 32KB 10ADC 32P 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
C8051F017-GQR 功能描述:8位微控制器 -MCU 32KB 10ADC 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
C8051F017R 功能描述:8位微控制器 -MCU C +-10Bit 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
C8051F018 功能描述:8位微控制器 -MCU 16KB 10ADC 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
C8051F018-GQ 功能描述:8位微控制器 -MCU 16KB 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