參數(shù)資料
型號(hào): DS87C530-QCL
英文描述: EPROM MICRO WITH REAL TIME CLOCK
中文描述: 微型存儲(chǔ)器與實(shí)時(shí)時(shí)鐘
文件頁(yè)數(shù): 17/40頁(yè)
文件大?。?/td> 435K
代理商: DS87C530-QCL
DS87C530
022197 17/40
PMM CONTROL AND STATUS BIT SUMMARY
Table 7
BIT NAME
LOCATION
FUNCTION
RESET
WRITE ACCESS
XT/RG
EXIF.3
Control. XT/RG=1, runs from crystal or
external clock; XT/RG=0, runs from
internal ring oscillator.
X
0 to 1 only when XTUP=1
and XTOFF=0
RGMD
EXIF.2
Status. RGMD=1, CPU clock = ring;
RGMD=0, CPU clock = crystal.
0
None
CD1, CD0
PMR.7,
PMR.6
Control. CD1,0=01, 4 clocks;
CS1,0=10, PMM1; CD1,0=11, PMM2.
0, 1
Write CD1,0=10 or 11 only
from CD1,0=01
SWB
PMR.5
Control. SWB=1, hardware invokes
switchback to 4 clocks, SWB=0, no
hardware switchback.
0
Unrestricted
XTOFF
PMR.3
Control. Disables crystal operation after
ring is selected.
0
1 only when XT/RG=0
PIP
STATUS.7
Status. 1 indicates a power–fail interrupt
in service.
0
None
HIP
STATUS.6
Status. 1 indicates high priority interrupt
in service.
0
None
LIP
STATUS.5
Status. 1 indicates low priority interrupt
in service.
0
None
XTUP
STATUS.4
Status. 1 indicates that the crystal has
stabilized.
1
None
SPTA1
STATUS.3
Status. Serial transmission on serial port 1.
0
None
SPRA1
STATUS.2
Status. Serial word reception on serial
port 1.
0
None
SPTA0
STATUS.1
Status. Serial transmission on serial port
0.
0
None
SPRA0
STATUS.0
Status. Serial word reception on serial
port 0.
0
None
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參數(shù)描述
DS87C530-QCL+ 功能描述:8位微控制器 -MCU EPROM MCU w/RTC 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
DS87C530-QEL 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
DS87C530-QNL 功能描述:8位微控制器 -MCU EPROM MCU w/RTC 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
DS87C530-QNL+ 功能描述:8位微控制器 -MCU EPROM MCU w/RTC 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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