LC78684E Ver la hoja de datos (PDF) - SANYO -> Panasonic

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Fabricante

LC78684E

MP3 Decoder for Compact Disc Players

SANYO -> Panasonic 

LC78684E

Command Input/Data Output Interface

Input commands (i.e. write data to the LC78684E) in the order data first and then address. The data and address are LSB first.

Output data is output (i.e. read data from the LC78684E) by first issuing a read mode setup command and then performing

read access operations.

Data write

CE

CL

CMDIN

CMDOUT

LSB

MSB LSB

MSB

Data

Address

High (Held high with an external pull-up resistor)

Data read

Data is read by first writing the register address to be read to location $61h and then setting up read mode by setting CE low

temporarily. When CE is set high again, and the CL signal is issued, the contents of the specified register are output from

CMDOUT, LSB first.

The microcontroller must perform a read access if it sets up read mode.

Read mode setup command

CE

Read access

CL

CMDIN

LSB

MSB LSB

MSB

Register address

Read code (61h)

CMDOUT High (Held high with an external pull-up resistor)

LSB

MSB

No.7350-8/21

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