TDA7415CB datasheet(33/50 Pages) STMICROELECTRONICS

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TDA7415CB

Digital interface

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6.2

I2C bus interface description

●

Interface Protocol

The interface protocol comprises:

–

a start condition (S)

–

a chip address byte (the LSB bit determines read / write transmission)

–

a subaddress byte

–

a sequence of data (N-bytes + acknowledge)

–

a stop condition (P)

Figure 26.

I2C bus interface diagram

S = Start

ACK = Acknowledge

Auto increment

If bit I in the subaddress byte is set to "1", the auto increment of the subaddress is enabled

which is also true for the SPI mode.

Chip-address

For the TDA7415CB the chip address is $8C (10001100).

Table 12.

Interface in SPI -mode

Symbol

Parameter

Min

Typ

Max

Units

fSCLK

Serial input clock frequency (SCL)

0,00

MHz

Tsu

Serial data setup time

40,00

Thld

Serial data hold time

40,00

Twh

Serial clock high time width

100,00

Twl

Serial clock low time width

100,00

Tscl

Select (SEL) to clock (SCL) falling setup time

200,00

Trel

Clock (SCL) to select (SEL) rising release time

200,00

Data rise time

2,00

μs

Data fall time

2,00

μs

Tsh

Chip select high time

200,00

μs

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