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USB3370 데이터시트(PDF) 60 Page - Microchip Technology

부품명 USB3370
상세설명  Enhanced Single Supply Hi-Speed USB ULPI Transceiver
PDF  75 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB3370 데이터시트(HTML) 60 Page - Microchip Technology

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USB3370
DS00001915B-page 60
2012 - 2015 Microchip Technology Inc.
Note 7-4
rd: Read Only with auto clear.
7.1.3.4
USB IO & Power Management
Address = 39-3Bh (read), 39h (write), 3Ah (set), 3Bh (clear)
RidConversionStart
4
rd/w/s/c
0b
When this bit is asserted either through a register write
or set, the Rid converter will read the value of the ID
resistor. When the conversion is complete this bit will
auto clear.
Reserved
5
rd/w/s/c
0b
This bit must remain at 0.
RidIntEn
6
rd/w/s/c
0b
When enabled an interrupt will be generated on the
alt_int of the RXCMD byte when RidConversionDone
bit is asserted.
Note:
This register bit is or’ed with the RidIntEn bit
of the Carkit Interrupt Status register.
Reserved
7
rd
0b
Read only, 0.
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
transceiver 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.
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
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
Field Name
Bit
Access
Default
Description



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