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參數資料
型號： ADUC848BCP62-5
廠商： ANALOG DEVICES INC
元件分類： 微控制器/微處理器
英文描述： MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
中文描述： 8-BIT, FLASH, 12.58 MHz, MICROCONTROLLER, QCC56
封裝： 8 X 8 MM, MO-220-VLLD-2, LFCSP-56
文件頁數： 68/108頁
文件大小： 1109K
代理商： ADUC848BCP62-5
ADuC845/ADuC847/ADuC848
POWER SUPPLY MONITOR
The power supply monitor, once enabled, monitors the DV
DD
and AV
DD
supplies on the parts. 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, AV
DD
must be equal to or greater than
2.63 V. Monitor function is controlled via the PSMCON SFR. If
enabled via the IEIP2 SFR, the monitor interrupts the core by
using the PSMI bit in the PSMCON SFR. This bit is not cleared
until the failing power supply returns above the trip point for at
least 250 ms.
Rev. A | Page 68 of 108
The 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
Table 43. PSMCON SFR Bit Designations
Bit No.
Name
Description
7
CMPD
DV
DD
Comparator Bit.
This read-only bit directly reflects the state of the DV
DD
comparator.
Read 1 indicates that the DV
DD
supply is above its selected trip point.
Read 0 indicates that the DV
DD
supply is below its selected trip point.
6
CMPA
AV
DD
Comparator Bit.
This read-only bit directly reflects the state of the AV
DD
comparator.
Read 1 indicates that the AV
DD
supply is above its selected trip point.
Read 0 indicates that the AV
DD
supply is below its selected trip point.
5
PSMI
Power Supply Monitor Interrupt Bit.
Set high by the MicroConverter if either CMPA or CMPD is low, indicating low analog or digital supply. The PSMI
bit can be used to interrupt the processor. Once CMPD and/or CMPA 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 either comparator output is low, it is not possible for the user to clear PSMI.
DV
DD
Trip Point Selection Bits.
A 5 V part has no valid PSM trip points. If the DV
DD
supply falls below the 4.63 V point, the part resets (POR). For a
3 V part, all relevant PSM trip points are valid. The 3 V POR trip point is 2.63 V (fixed).
These bits select the DV
DD
trip point voltage as follows:
TPD1
TPD0
Selected DV
DD
Trip Point (V)
0
0
4.63
0
1
3.08
1
0
2.93
1
1
2.63
AV
DD
Trip Point Selection Bits. These bits select the AV
DD
trip point voltage as follows:
TPA1
TPA0
Selected AV
DD
Trip Point (V)
0
0
4.63
0
1
3.08
1
0
2.93
1
1
2.63
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.
safe supply level is well established. The supply monitor is also
protected against spurious glitches triggering the interrupt
circuit.
Note that the 5 V part has an internal POR trip level of 4.63 V,
which means that there are no usable DV
DD
PSM trip levels on
the 5 V part. The 3 V part has a POR trip level of 2.63 V
following a reset and initialization sequence, allowing all
relevant PSM trip points to be used.
PSMCON—Power Supply Monitor Control Register
SFR Address:
Power-On Default:
Bit Addressable:
DFH
DEH
No
4, 3
TPD1, TPD0
2, 1
TPA1, TPA0
相關PDF資料
PDF描述
ADUC848BCP8-3 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC848BCP8-5 Cable Gland (Clamp); Connector Shell Size:10SL, 12S; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No; Thread Size:5/8-24; Approval Categories:MIL-C-5015; Series:97 RoHS Compliant: No
ADUC848BS32-3 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC848BS32-5 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC848BS62-3 10-825944-010
相關代理商/技術參數
參數描述
ADUC848BCP8-3 制造商:Analog Devices 功能描述:MCU 8-bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 56-Pin LFCSP EP 制造商:Analog Devices 功能描述:10 CHANNEL 16 BIT ADC + FLASH 8 BIT UP - Trays 制造商:Rochester Electronics LLC 功能描述:10 CHANNEL 16 BIT ADC + FLASH 8 BIT UP - Bulk
ADUC848BCP8-5 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 56-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.85MHZ 5V 56LFCSP - Bulk
ADUC848BCPZ62-3 功能描述:IC MCU FLASH W/16BIT ADC 56-CSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設備:欠壓檢測/復位，LED，POR，PWM，WDT 輸入/輸出數:16 程序存儲器容量:4KB（4K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND
ADUC848BCPZ62-5 功能描述:IC MCU FLASH W/16BIT ADC 56LFCSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設備:欠壓檢測/復位，LED，POR，PWM，WDT 輸入/輸出數:16 程序存儲器容量:4KB（4K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND
ADUC848BCPZ8-3 功能描述:IC MCU FLASH W/16BIT ADC 56-CSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設備:欠壓檢測/復位，LED，POR，PWM，WDT 輸入/輸出數:16 程序存儲器容量:4KB（4K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND
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