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STW4810 Datenblatt(PDF) 44 Page - STMicroelectronics

Teilenummer STW4810
Bauteilbeschribung  Power management for multimedia processors
PDF  79 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STW4810 Datenblatt(HTML) 44 Page - STMicroelectronics

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STw4810
Functional description
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The transceiver receives USB data in the following conditions:
uart_en = 0 (USB control register 1); oe_int_en = 1
UART mode
UART mode is entered by setting the ‘uart_en’ bit to 1 (USB control register 1 -
Table 11).
The transceiver contains two digital logic level translators between the following balls:
●
TXD signal: from USBVM to DN
●
RXD signal: from DP to USBVP
When not in UART mode the level translators are disabled.
Table 33.
Data receiver via USB control register 1
USB mode (dat_se0)
Suspend
Inputs
Outputs
DP
DN
USBVP
USBVM
USBRCV
1 (DAT_SE0 mode)
0
0
0
Diff rcv 1
1
not used
1 (DAT_SE0 mode)
0
1
0
1
0
not used
1 (DAT_SE0 mode)
0
0
1
0
0
not used
1 (DAT_SE0 mode)
0
1
1
Diff rcv 1
0
not used
1 (DAT_SE0 mode)
1
0
0
0
1
not used
1 (DAT_SE0 mode)
1
1
0
1
0
not used
1 (DAT_SE0 mode)
1
0
1
0
0
not used
1 (DAT_SE0 mode)
1
1
1
1
0
not used
0 (VP_VM mode)
0
0
0
0
0
diff rcv 1
0 (VP_VM mode)
0
1
0
1
0
1
0 (VP_VM mode)
0
0
1
0
1
0
0 (VP_VM mode)
0
1
1
1
1
diff rcv 1
0 (VP_VM mode)
1
0
0
0
0
not used
0 (VP_VM mode)
1
1
0
1
0
not used
0 (VP_VM mode)
1
0
1
0
1
not used
0 (VP_VM mode)
1
1
1
1
1
not used



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