參數(shù)資料
型號(hào): PIC24FJ128GB110-I/PF
廠商: Microchip Technology
文件頁(yè)數(shù): 5/22頁(yè)
文件大?。?/td> 0K
描述: IC PIC MCU FLASH 100TQFP
標(biāo)準(zhǔn)包裝: 90
系列: PIC® 24F
核心處理器: PIC
芯體尺寸: 16-位
速度: 32MHz
連通性: I²C,SPI,UART/USART,USB OTG
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,LVD,POR,PWM,WDT
輸入/輸出數(shù): 83
程序存儲(chǔ)器容量: 128KB(43K x 24)
程序存儲(chǔ)器類(lèi)型: 閃存
RAM 容量: 16K x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 16x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-TQFP
包裝: 托盤(pán)
產(chǎn)品目錄頁(yè)面: 648 (CN2011-ZH PDF)
配用: 876-1004-ND - PIC24 BREAKOUT BOARD
2008-2011 Microchip Technology Inc.
DS80369N-page 13
PIC24FJ256GB110 FAMILY
38. Module: USB (Device and Host Modes)
In previous literature for this module, the
ACTVIF
interrupt
flag
(U1OTGIR<4>)
is
described as being asserted, based on state
changes detected on D+, D- or VBUS, when the
microcontroller is in Sleep mode. In actual
implementation,
state
changes
on
the
RF3/USBID pin also cause the ACTVIF flag to
be asserted.
As a result, logic input level changes on
RF3/USBID may cause ACTVIF to be
asserted, even in non-OTG applications that do
not use the USBID function. This may cause the
microcontroller to wake up unexpectedly.
Work around
For On-The-Go (OTG) Based Applications: No
work around is needed.
For non-OTG Device, Host or Dual-Role
Applications: If ACTVIF is used as a wake-up
source, it is recommended that the application be
designed so that RF3/USBID does not see any
changes while the microcontroller is in a
power-saving mode.
If RF3/USBID is not needed in the application, it
is recommended to configure it as a digital output.
If the RF3/USBID pin is configured as a digital
input, ensure that the signal provider does not
change the pin state while ACTVIF is enabled as
a wake-up source. If the pin is used as a general
purpose input, which can change while in the
USB Suspend state, check the IDIF flag
(U1OTGIR<7>) after waking up from an ACTVIF
event to determine if the wake-up event was
caused by a state change on RF3/USBID.
Affected Silicon Revisions
A3
A5
A6
XX
X
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