CS8416-CS データシートの表示（PDF） - Cirrus Logic

部品番号

コンポーネント説明

メーカー

CS8416-CS

192 kHz Digital Audio Interface Receiver

Cirrus Logic 

CS8416

6.3 General Purpose Outputs

Three General Purpose outputs are provided to allow the equipment designer flexibility in configuring the

CS8416.

Fourteen signals are available to be routed to the GPOs.

GPO pins may be configured to provide the following data:

Function

Code

Definition

TX

0000 AES/SPDIF input selected by TXSEL[2:0]

EMPH

0001 State of EMPH bit in incoming stream. Same polarity as EMPHb bit.

INT

0010 CS8416 interrupt

C

0011 Channel status bit

U

0100 User data bit

RERR

0101 Receiver Error

NVERR

0110 Non-Validity Receiver Error

RCBL

0111

Receiver Channel Status Block

96KHZ

1000

Input FS ≥ 88.1

AUDIO

1001 Non-audio indicator for decoded input stream

VLRCK

1010 Virtual LRCK

GND

1011 Fixed low Level

VDD

1100 VDD fixed high level

HRMCK

1101

FS X 512 (Note 13)

Codes 1110 to 1111 - Reserved

Table 3. GPO Pin Configurations

Notes: 13. Frequency = 25 MHz Max, duty cycle not guaranteed, target duty cycle = 50% @ FS = 48 kHz.

6.4 Interrupts

The CS8416 has a comprehensive interrupt capa-

bility. The INT pin may be set to be active low, ac-

tive high or active low with no active pull-up

transistor. This last mode is used for active low,

wired-OR hook- ups, with multiple peripherals

connected to the microcontroller interrupt input

pin.

Many conditions can cause an interrupt, as listed in

the interrupt status register descriptions. Each

source may be masked off through mask register

bits. In addition, each source may be set to rising

edge, falling edge, or level sensitive. Combined

with the option of level sensitive or edge sensitive

modes within the microcontroller, many different

configurations are possible, depending on the

needs of the equipment designer.

22

DS578PP2

Share Link: