參數(shù)資料
型號: AT85C51SND3B1-RTTUL
廠商: Atmel
文件頁數(shù): 106/119頁
文件大?。?/td> 0K
描述: IC DECODER/ENCODER DGTL 100-LQFP
標(biāo)準包裝: 90
類型: 音頻編碼器/解碼器
應(yīng)用: 移動電話,手機,視頻顯示器
電壓 - 電源,數(shù)字: 1.65 V ~ 3.6 V
安裝類型: 表面貼裝
封裝/外殼: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-LQFP(14x14)
包裝: 托盤
87
AT85C51SND3B
7632D–MP3–01/07
The DPACC bit and the DPADD10:0 field can be set by software. The DPRAM is not
cleared.
The SPDCONF bits can be set by software.
After setting USBE, the USB Controller enters in the Host or in the Device state (accord-
ing to the UID pin level). The selected controller is ‘Idle’.
The USB Controller can at any time be ‘stopped’ by clearing USBE. In fact, clearing
USBE acts as an hardware reset.
Interrupts
As shown in Figure 52, the USB controller implements five main global interrupt
sources: the USB general and OTG interrupts detailed in Figure 53, the USB device and
endpoint interrupts detailed in Section “Interrupts”, page 113, and the USB host and
pipe interrupts detailed in Section “Interrupt”, page 134.
Figure 52. USB Interrupt System
Figure 53. USB General and OTG Interrupt System
USB Controller
Interrupt Request
USB General
& OTG Interrupt
USB Device
Interrupt
Endpoint
Interrupt
USB Host
Interrupt
Pipe
Interrupt
EUSB
IEN1.0
VBUSTI
USBINT.0
VBUSTE
USBCON.0
BCERRI
OTGINT.2
BCERRE
OTGIEN.2
ROLEEXI
OTGINT.3
ROLEEXE
OTGIEN.3
STOI
OTGINT.5
STOE
OTGIEN.5
IDTI
USBINT.1
IDTE
USBCON.1
VBERRI
OTGINT.1
VBERRE
OTGIEN.1
SRPI
OTGINT.0
SRPE
OTGIEN.0
HNPERRI
OTGINT.4
HNPERRE
OTGIEN.4
USB General
& OTG Interrupt
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