PT2319 查看數據表（PDF） - Princeton Technology

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PT2319

Audio Processor IC

Princeton Technology 

Tel: 886-2-66296288

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

Audio Processor IC

PT2319

3-WIRE SERIAL BUS INTERFACE

To control any of PT2319’s functions, it is necessary to pass the microprocessor control signals

through the CE, DI, and CL 3-wire interface. The basic timing sequence of the control codes is shown

in the diagram below.

CE

DI

B0 B1 B2 B3 A0 A1 A2 A3 D 0 D 1 D 2 D 3 D 4 D 5

D 38 D 39 D 40 D 41 D 42 D 43

CL

CE

1µ s 1µ s 1µ s

1µ s

1µ s min min min

min

min

CL

DI

1µ s ≤ T

INTERFACE PROTOCOL

The 52-bit control code for PT2319 is composed of an 8-bit address code and a 44-bit data code for a

total control code length of 52 bits.

CONTROL CODE DEFINITIONS

Function Name

Application

Fader

Adjust fader gain

Super Bass

Super bass boost

Bass

Bass adjustment

Treble

Treble adjustment

Volume

Main volume control

Input Gain

Input Selector

Fader Front/Rear Sel.

Output Gain

Balance

Input Mute

Test Mode

Input selector gain

Input selector

Fader channel selector

Output gain select

Left/right channel select

For muting

For factory testing

Register Location

Notes

D0 ~ D3

D4 ~ D7

Only boost

D8 ~ D11

D12 ~ D15

Can independently

D16 ~ D23

adjust left and right

volumes

D24 ~ D27

D28, D29, D32

D30

D31, D39

D33, D34

Operates in conjunction

with volume

D35

D36 ~ D38, D40 ~ D43

Send all zeroes under

normal operation

PT2319 V1.4

-6-

December, 2005

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