TDA7512 datasheet(20/42 Pages) STMICROELECTRONICS

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TDA7512

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to the TDA7512 will be considered as Data. The internal address will be automatically incremented. After each

word receipt the TDA7512 will answer with an "acknowledge".

1.8.8

Read Operation

If the master sends a slave address word with the R/W bit set to "1", the TDA7512 will transit one 8-bit data

word. This data word includes the following informations:

bit0 (ISS filter, 1 = ON, 0 = OFF)

bit1

(ISS filter bandwidth, 1 = 80kHz, 0 = 120kHz)

bit2

(MPOUT,1 = multipath present, 0 = no multipath)

bit3

(1 = PLL is locked in , 0 = PLL is locked out).

bit4

(fieldstrength indicator, 1 = lower as softmute threshold, 0 = higher as softmute threshold)

bit5

(adjacent channel indicator, 1 = adjacent channel present, 0 = no adjacent channel)

bit6

(deviation indicator, 1 = strong overdeviation present, 0 = no strong overdeviation)

bit7

(deviation indicator, 1 = overdeviation present, 0 = no overdeviation)

Software Specification

The interface protocol comprises:

– start condition (S)

– chip address byte

– subaddress byte

– sequence of data (N bytes + Acknowledge)

– stop condition (P)

TDA7512 Datasheet(PDF) 20 Page - STMicroelectronics