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USB3370 数据表(PDF) 57 Page - Microchip Technology

部件名 USB3370
功能描述  Enhanced Single Supply Hi-Speed USB ULPI Transceiver
PDF  75 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

USB3370 数据表(HTML) 57 Page - Microchip Technology

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2012 - 2015 Microchip Technology Inc.
DS00001915B-page 57
USB3370
7.1.2.3
Carkit Interrupt Status
Address = 20h (read only)
CarDpRise
3
rd
0b
Not Implemented. Reads as 0b.
CarDpFall
4
rd
0b
Not Implemented. Reads as 0b.
RidIntEn
5
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 Vendor Rid Conversion register
described in Section 7.1.3.3.
Reserved
6
rd
0b
Read only, 0.
Reserved
7
rd
0b
Read only, 0.
Field Name
Bit
Access
Default
Description
IdFloat
0
rd
0b
Asserted when the ID pin is floating. IdPullup must be
enabled.
VdatDet
1rd
0b
VDAT_DET Comparator output
0b: No voltage is detected on DP
1b: Voltage detected on DP, IdatSinkEn must be set to
1.
Note:
VdatDet
can also be read from the USB-IF
Charger Detection register described in
Section 7.1.3.3.
CarDp
2
rd
0b
Not Implemented. Reads as 0b.
RidValue
5:3
rd
000b
Conversion value of Rid resistor
000: 0 ohms
001: 75 ohms
010: 102K ohms
011: 200K ohms
100: Reserved
101: ID floating
111: Error
Note:
RidValue
can also be read from the Vendor
Rid Conversion register described in
Section 7.1.3.3.
RidConversionDone
6
rd
0b
Automatically asserted by the USB3370 when the Rid
Conversion is finished. The conversion will take
282uS. This bit will auto clear when the RidValue is
read from the Rid Conversion Register. Reading the
RidValue
from the Carkit Interrupt Status register will
not clear either RidConversionDone status bit.
Note:
RidConversionDone
can also be read from
the Vendor Rid Conversion register described
in Section 7.1.3.3.
Reserved
7
rd
0b
Read only, 0.
Field Name
Bit
Access
Default
Description



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