USB334X datasheet(74/92 Pages) MICROCHIP

74 / 92 page

USB334x

DS00002646A-page 74

 2009-2018 Microchip Technology Inc.

7.1.3.3

Headset Audio Mode

Address = 33h (read / write)

7.1.3.4

Vendor Rid Conversion

Address = 36-38h (read), 36h (write), 37h (set), 38h (clear)

VdatDet

4rd

VDAT_DET Comparator output. IdatSinkEn must be set

to 1 to enable the comparator.

0b: No voltage is detected on DP or Linestate[1:0] is

not equal to 00b.

1b: Voltage detected on DP, and Linestate[1:0] = 00b.

Note:

VdatDet can also be read from the Carkit

Interrupt Status register described in

Section 7.1.2.3, "Carkit Interrupt Status," on

page 71.

Reserved

5-7

Read only, 0.

Note:

The charger detection should be turned off before beginning USB operation. USB-IF Charger Detection

Bits 2:0 should be set to 000b.

Field Name

Bit

Access

Default

Description

HeadsetAudioEn

3:0

rd/w

0000b

When this field is set to a value of ‘1010’, the Head-

set Audio Mode is enabled as described in Section

6.8.1, "Headset Audio Mode," on page 61.

Reserved

7:4

Read only, 0.

Field Name

Bit

Access

Default

Description

RidValue

2:0

rd/w

000b

Conversion value of Rid resistor

000: 0Ω

001: 75Ω

010: 100 KΩ

011: 200 KΩ

100: 440 KΩ

101: ID floating

111: Error

Note:

RidValue can also be read from the Carkit

Interrupt Status Register.

RidConversionDone

3rd

(Note 7-4)

Automatically asserted by the USB334x 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 Carkit Interrupt Status Register.

Field Name

Bit

Access

Default

Description

USB334X bảng dữ liệu(PDF) 74 Page - Microchip Technology

USB334X bảng dữ liệu(HTML) 74 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92

bảng dữ liệu tải về

Link URL