AU7842 查看數據表（PDF） - Unspecified

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AU7842

USB HOST MP3/WMA DECODER SOC

Unspecified 

MVSILICON

3. Pin Description

AU7842 USB HOST MP3/WMA DECODER SOC

AU7842 is a CMOS device. Floating level on input signals causes unstable device

operation and abnormal current consumption. Pull-up or Pull-down resistors should be used

appropriately for input or bidirectional pins.

Notation

I

O

I/O

I/OD

AI

AO

PWR

GND

Description

Input

Output

Bidirectional

Bidirectional, Open drain output

Analog Input

Analog Output

Power

Ground

3.1 AU7842 Pin Description

Pin name

FSH_DB [7:6]

FSH_DB [5:2]

FSH_DB [1:0]

FSH_WR

FSH_RD

FSH_EN

FSH_AB[15:14]

FSH_AB[13]

FSH_AB[12]

FSH_AB[11]

FSH_AB[10]

FSH_AB[9:8]

FSH_AB[7:6]

FSH_AB[5:4]

FSH_AB[3:1]

FSH_AB[0]

USB_DP

USB_DM

SD_CLK

Pin #

18:19

22:25

30:31

90

91

92

62:63

64

61

67

39

66:65

58:57

40:41

34:36

38

10

9

51

Type

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

Table 1 AU7842 Pin Description

Description

NOR flash memory interface pins

Flash memory data bus

Flash memory data bus

Flash memory data bus

Flash memory write signal

Flash memory read signal

Flash memory chip enable

Flash memory address bus

Flash memory address bus

Flash memory address bus

Flash memory address bus

Flash memory address bus

Flash memory address bus

Flash memory address bus

Flash memory address bus

Flash memory address bus

Flash memory address bus

USB interface pins

USB Function D+ bus

USB Function D- bus

CARD interface pins

SD Card clock

Shanghai Mountain View Silicon Technology Co Ltd

http://www.mvsilicon.com

5

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