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STW4811MBRAT/HF データシート(PDF) 24 Page - STMicroelectronics

部品番号 STW4811MBRAT/HF
部品情報  Power management for multimedia processors
PDF  85 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STW4811MBRAT/HF データシート(HTML) 24 Page - STMicroelectronics

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Functional description
STw4811M/STw4811N
24/85
CD00131784
Registers controlled by I2C USB bus
The registers described in this chapter are controlled through the USB serial I2C interface,
USBSCL and USBSDA balls.
These registers can also be controlled through the main I2C interface, SCL and SDA balls
by setting to “1” ‘usb_i2c_ctrl’ bit in
power control register (Table 23).
Note:
A bit of register 1 is set at “1” by writing a “1” at address 04h, is reset at “0” by writing a “1” at
address 05h. This is also applicable for USB control register 2 (06h, 07h), USB interrupt
register (0Ah,0Bh), USB interrupt mask false register (0Ch, 0Dh) and USB interrupt mask
true register (0Eh, 0Fh). Writing “0” at any address has not effect on the content of any
register.
Table 9.
USB register address
Address
Register
Type
00h - 01h
Vendor ID
R
02h - 03h
Product ID
R
04h set
USB control register 1
R/W
05h clearh
USB control register 1
R/W
06h set
USB control register 2
R/W
07h clearh
USB control register 2
R/W
08h
USB interrupt source
R
09h
Not used
0Ah set
USB interrupt latch
R/W
0Bh clearh
USB interrupt latch
R/W
0Ch set
USB interrupt mask false
R/W
0Dh clearh
USB interrupt mask false
R/W
0Eh set
USB interrupt mask true
R/W
0Fh clearh
USB interrupt mask true
R/W
10h
USB_EN
R/W
Table 10.
Vendor ID and Product ID: Read only
Name
Address
Register value
Vendor ID
00h
83h
Vendor ID
01h
04h
Product ID
02h
11h
03h
40h



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