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USB333X 데이터시트(PDF) 69 Page - Microchip Technology

부품명 USB333X
상세설명  Industry?셲 Smallest Hi-Speed USB Transceiver with Single Supply Operation
PDF  85 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB333X 데이터시트(HTML) 69 Page - Microchip Technology

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 2009 - 2015 Microchip Technology Inc.
DS00001880A-page 69
USB333x
7.1.3.5
USB IO & Power Management
Address = 39-3Bh (read), 39h (write), 3Ah (set), 3Bh (clear)
Field Name
Bit
Access
Default
Description
Reserved
0
rd/w/s/c
0b
Read only, 0.
SwapDP/DM
1
rd/w/s/c
0b
When asserted, the DP and DM pins of the USB PHY
are swapped. This bit can be used to prevent crossing
the DP/DM traces on the board. In UART mode, it
swaps the routing to the DP and DM pins. In USB
Audio Mode, it does not affect the SPK_L and SPK_R
pins.
UART RegOutput
3:2
rd/w/s/c
01b
Controls the output voltage of the VBAT to VDD33
regulator in UART mode. When the PHY is switched
from USB mode to UART mode regulator output will
automatically change to the value specified in this
register when TxdEn is asserted.
00: 3.3V
01: 3.0V (default)
10: 2.75V
11: 2.5V
Note:
When in USB Audio Mode the regulator will
remain at 3.3V. When using this register it is
recommended that the Link exit UART mode
by using the RESETB pin.
ChargerPullupEnDP
4
rd/w/s/c
0b
Enables the RCD Pull-up resistor on the DP pin. (The
pull-up is automatically enabled in UART mode)
ChargerPullupEnDM
5
rd/w/s/c
0b
Enables the RCD Pull-up resistor on the DM pin. (The
pull-up is automatically enabled in UART mode)
USB RegOutput
7:6
rd/w/s/c
00b
Controls the output voltage of the VBAT to VDD33
regulator in USB mode. When the PHY is in
Synchronous Mode, Serial Mode, or Low Power Mode,
the regulator output will be the value specified in this
register.
00: 3.3V (default)
01: 3.0V
10: 2.75V
11: 2.5V



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