CS8416-CZZ 데이터 시트보기 (PDF) - Cirrus Logic

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CS8416-CZZ

192 kHz Digital Audio Interface Receiver

Cirrus Logic 

CS8416

9. GENERAL PURPOSE OUTPUTS

Three General Purpose Outputs (GPO) are provided to allow the equipment designer flexibility in configuring the

CS8416. Fourteen signals are available to be routed to any of the GPO pins. The outputs of the GPO pins are set

through the GPOxSEL[3:0] bits in the Control2 (02h) and Control3 (03h) registers. All GPO pins default to GND

after reset.

GPO pins may be configured to provide the following data:

Function

GND

Code

0000 Fixed low level

Definition

EMPH

INT

C

U

RERR

NVERR

RCBL

96KHZ

AUDIO

VLRCK

TX

VDD

0001

0010

0011

0100

0101

0110

0111

1000

1001

1010

1011

1100

State of EMPH bit in the incoming data stream.

CS8416 interrupt output

Channel status bit

User data bit

Receiver Error

Non-Validity Receiver Error

Receiver Channel Status Block

If the input sample rate is ≤ 48 kHz, outputs a “0”. Outputs a “1” if the sample rate is ≥ 88.1 kHz.

Otherwise the output is indeterminate.

Non-audio indicator for decoded input stream

Virtual LRCK. Can be used to frame the C and U output data.

Pass through of AES/SPDIF input selected by TXSEL[2:0] in the Control 4 register (04h)

VDD fixed high level

HRMCK

1101 FS X 512 (Note 1)

Codes 1110 to 1111 - Reserved

Table 3. GPO Pin Configurations

Notes:

1. Frequency = 25 MHz Max, duty cycle not guaranteed, target duty cycle = 50% @ FS = 48 kHz.

DS578F3

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