欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: HMS87C1304AD
廠商: HYNIX SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
中文描述: 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO24
封裝: SOP-24
文件頁數: 62/70頁
文件大小: 977K
代理商: HMS87C1304AD
HMS87C1304A/HMS87C1302A
HYUNDAI MicroElectronics
62
Preliminary
Jan. 2001
19. POWER FAIL PROCESSOR
The HMS87C1304A and HMS87C1302A has an on-chip
power fail detection circuitry to immunize against power
noise. A configuration register, PFDR, can enable (if clear/
programmed) or disable (if set) the Power-fail Detect cir-
cuitry. If V
DD
falls below 2.5~3.5V(2.0~3.0V) range for
longer than 50 nS, the Power fail situation may reset MCU
according to PFS bit of PFDR. And power fail detect level
is selectable by mask option. On the other hand, in the
OTP, power fail detect level is decided by setting the bit
PFDLEVEL of CONFIG register when program the OTP.
As below PFDR register is not implemented on the in-cir-
cuit emulator, user can not experiment with it. Therefore,
after final development of user program, this function may
be experimented.
Note:
Power fail detect level is decided by mask option
checking the bit PFDLEVEL of MASK ORDER
SHEET (refer to MASK ORDER SHEET)
In thc case of OTP, Power fail detect level is decid-
ed by setting the bit PFDLEVEL of CONFIG register
(refer to Figure 20-1 .
Figure 19-1 Power Fail Detector Register
Figure 19-2 Example S/W of RESET by Power fail
PFDR
ADDRESS : EFH
RESET VALUE : -----100
-
-
-
-
-
PFDIS
PFDM
PFS
Reserved
Power Fail Status
0 : Normal Operate
1 : This bit force to “1” when
Power fail was detected
Operation Mode
0 : System Clock Freeze during power fail
1 : MCU will be reset during power fail
Disable Flag
0 : Power fail detection enable
1 : Power fail detection disable
Power Fail Detector Register
FUNTION
EXECUTION
INITIALIZE RAM DATA
PFS =1
NO
RESET VECTOR
INITIALIZE ALL PORTS
INITIALIZE REGISTERS
RAM CLEAR
YES
Skip the
initial routine
Preimnary
相關PDF資料
PDF描述
HMS99C51 8-BIT SINGLE-CHIP MICROCONTROLLERS
HMS99C52 8-BIT SINGLE-CHIP MICROCONTROLLERS
HMS9XC7132 DATA SHEET REV.2.0(PRELIMINARY)
HMU16GC-35 16 x 16-Bit CMOS Parallel Multipliers
HMU16GC-45 16 x 16-Bit CMOS Parallel Multipliers
相關代理商/技術參數
參數描述
HMS87C1404B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS
HMS87C1404BD 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS
HMS87C1404BSK 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS
HMS87C1408B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS
HMS87C1408BD 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS
主站蜘蛛池模板: 邵东县| 监利县| 武穴市| 视频| 黄陵县| 攀枝花市| 澄迈县| 涟水县| 临颍县| 灯塔市| 商城县| 凉城县| 江口县| 唐山市| 伊川县| 英山县| 长白| 武强县| 甘泉县| 连州市| 辉县市| 安泽县| 扬州市| 温泉县| 平顺县| 南岸区| 富民县| 台北市| 加查县| 调兵山市| 平阴县| 蒙城县| 鄂尔多斯市| 宁国市| 正蓝旗| 运城市| 阿坝县| 大宁县| 师宗县| 龙胜| 南澳县|