參數(shù)資料
型號: DSPIC33FJ256MC510T-I/PT
廠商: Microchip Technology
文件頁數(shù): 123/136頁
文件大?。?/td> 0K
描述: IC DSPIC MCU/DSP 256K 100TQFP
產(chǎn)品培訓(xùn)模塊: Asynchronous Stimulus
標(biāo)準(zhǔn)包裝: 1,200
系列: dsPIC™ 33F
核心處理器: dsPIC
芯體尺寸: 16-位
速度: 40 MIP
連通性: CAN,I²C,IrDA,LIN,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,DMA,電機(jī)控制 PWM,QEI,POR,PWM,WDT
輸入/輸出數(shù): 85
程序存儲器容量: 256KB(256K x 8)
程序存儲器類型: 閃存
RAM 容量: 16K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 24x10b/12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-TQFP
包裝: 帶卷 (TR)
配用: MA330013-ND - MODULE PLUG-IN DSPIC33 100TQFP
DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
DM240001-ND - BOARD DEMO PIC24/DSPIC33/PIC32
87
4235K–8051–05/08
AT89C51RD2/ED2
21. Power-off Flag
The power-off flag allows the user to distinguish between a “cold start” reset and a “warm start”
reset.
A cold start reset is the one induced by VCC switch-on. A warm start reset occurs while VCC is still
applied to the device and could be generated for example by an exit from power-down.
The power-off flag (POF) is located in PCON register (Table 21-1). POF is set by hardware
when VCC rises from 0 to its nominal voltage. The POF can be set or cleared by software allow-
ing the user to determine the type of reset.
Table 21-1.
PCON Register
PCON - Power Control Register (87h)
Reset Value = 00X1 0000b
Not bit addressable
7
6
5
4
3
2
1
0
SMOD1
SMOD0
-
POF
GF1
GF0
PD
IDL
Bit
Number
Bit
Mnemonic
Description
7
SMOD1
Serial port Mode bit 1
Set to select double baud rate in mode 1, 2 or 3.
6
SMOD0
Serial port Mode bit 0
Cleared to select SM0 bit in SCON register.
Set to select FE bit in SCON register.
5
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
4
POF
Power-Off Flag
Cleared by software to recognize the next reset type.
Set by hardware when V
CC rises from 0 to its nominal voltage. Can also be set by
software.
3
GF1
General-purpose Flag
Cleared by user for general-purpose usage.
Set by user for general-purpose usage.
2
GF0
General-purpose Flag
Cleared by user for general-purpose usage.
Set by user for general-purpose usage.
1
PD
Power-down mode bit
Cleared by hardware when reset occurs.
Set to enter power-down mode.
0
IDL
Idle mode bit
Cleared by hardware when interrupt or reset occurs.
Set to enter idle mode.
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