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| 型号： | ADUC814ARU |
| 厂商： | Analog Devices Inc |
| 文件页数： | 37/72页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT W/FLASH MCU 28TSSOP |
| 标准包装： | 50 |
| 系列： | MicroConverter® ADuC8xx |
| 核心处理器： | 8052 |
| 芯体尺寸： | 8-位 |
| 速度： | 16.78MHz |
| 连通性： | I²C，SPI，UART/USART |
| 外围设备： | POR，PSM，温度传感器，WDT |
| 输入/输出数： | 17 |
| 程序存储器容量： | 8KB（8K x 8） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 640 x 8 |
| RAM 容量： | 256 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 5.5 V |
| 数据转换器： | A/D 6x12b; D/A 2x12b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 包装： | 管件 |
| 配用： | EVAL-ADUC814QSZ-ND - KIT DEV FOR ADUC814 MICROCONVRTR |
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ADuC814
Rev. A | Page 42 of 72
POWER SUPPLY MONITOR
As its name suggests, the power supply monitor, once enabled,
monitors the supply (DVDD) on the ADuC814. It indicates when
any of the supply pins drop below one of four user-selectable
voltage trip points from 2.63 V to 4.63 V. For correct operation
of the power supply monitor function, DVDD must be equal to
or greater than 2.7 V. Monitor function is controlled via the
PSMCON SFR. If enabled via the IEIP2 SFR, the monitor
interrupts the core using the PSMI bit in the PSMCON SFR.
This bit is not cleared until the failing power supply has
returned above the trip point for at least 250 ms. This monitor
function allows the user to save working registers to avoid
possible data loss due to the low supply condition, and also
ensures that normal code execution does not resume until a safe
supply level is well established. The supply monitor is also
protected against spurious glitches triggering the interrupt
circuit.
PSMCON
Power Supply Monitor Control Register
SFR Address
DFH
Power-On Default
DEH
Bit Addressable
No
----
CMPD
PSMI
TPD1
TPD0
----
PSMEN
Table 16. PSMCON SFR Bit Designations
Bit No.
Name
Description
7
PSMCON.7
Reserved.
6
CMPD
DVDD Comparator Bit.
This is a read-only bit and directly reflects the state of the DVDD comparator.
Read 1 indicates that the DVDD supply is above its selected trip point.
Read 0 indicates that the DVDD supply is below its selected trip point.
5
PSMI
Power Supply Monitor Interrupt Bit.
This bit is set high by the MicroConverter if CMPD is low, indicating low digital supply. The PSMI bit can be used to
interrupt the processor. Once CMPD returns and remains high, a 250 ms counter is started. When this counter
times out, the PSMI interrupt is cleared. PSMI can also be written by the user; however, if the comparator output is
low, it is not possible for the user to clear PSMI.
4
TPD1
DVDD Trip Point Selection Bits.
These bits select the DVDD trip-point voltage as follows:
TPD1
TPD0
Selected DVDD Trip Point (V)
0
4.63
0
1
3.08
1
0
2.93
3
TPD0
1
2.63
2
PSMCON.2
Reserved.
1
PSMCON.1
Reserved.
0
PSMEN
Power Supply Monitor Enable Bit.
Set to 1 by the user to enable the power supply monitor circuit.
Cleared to 0 by the user to disable the power supply monitor circuit.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADUC814ARU-D2 | 制造商:Analog Devices 功能描述:12 BIT ADC WITH EMBEDDED 8-BIT MICRO I.C - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:12 BIT ADC WITH EMBEDDED 8-BIT MICRO I.C - Bulk |
| ADUC814ARU-REEL | 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 8KB Flash 3V/5V 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:12 BIT ADC WITH EMBEDDED 8-BIT MICRO I.C - Tape and Reel |
| ADUC814ARU-REEL7 | 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 8KB Flash 3V/5V 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:12 BIT ADC WITH EMBEDDED 8-BIT MICRO I.C - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:12 BIT ADC WITH EMBEDDED 8-BIT MICRO I.C - Tape and Reel |
| ADUC814ARUZ | 功能描述:IC ADC 12BIT W/FLASH MCU 28TSSOP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 产品培训模块:MCU Product Line Introduction XMEGA Introduction AVR XMEGA USB Connectivity 标准包装:90 系列:AVR® XMEGA 核心处理器:AVR 芯体尺寸:8/16-位 速度:32MHz 连通性:I²C，IrDA，SPI，UART/USART 外围设备:欠压检测/复位，DMA，POR，PWM，WDT 输入/输出数:50 程序存储器容量:192KB（96K x 16） 程序存储器类型:闪存 EEPROM 大小:4K x 8 RAM 容量:16K x 8 电压 - 电源 (Vcc/Vdd):1.6 V ~ 3.6 V 数据转换器:A/D 16x12b; D/A 2x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:64-TQFP 包装:托盘 配用:ATSTK600-RC14-ND - STK600 SOCKET/ADAPTER 64TQFPATSTK600-TQFP64-ND - STK600 SOCKET/ADAPTER 64-TQFPATAVRONEKIT-ND - KIT AVR/AVR32 DEBUGGER/PROGRMMRATAVRISP2-ND - PROGRAMMER AVR IN SYSTEM |
| ADUC814ARUZ-REEL | 功能描述:IC MCU FLASH 12BIT ADC 28TSSOP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 标准包装:38 系列:Encore!® XP® 核心处理器:eZ8 芯体尺寸:8-位 速度:5MHz 连通性:IrDA，UART/USART 外围设备:欠压检测/复位，LED，POR，PWM，WDT 输入/输出数:16 程序存储器容量:4KB（4K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 3.6 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:管件 其它名称:269-4116Z8F0413SH005EG-ND |
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