TDA7540B Datasheet, PDF (37/75 Pages) STMicroelectronics – AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)

TDA7540B
5
Software specification
Software specification
The interface protocol comprises:
– start condition (S)
– chip address byte
– subaddress byte
– sequence of data (N bytes + Acknowledge)
– stop condition (P)
The pagermode is only working up to byte 31. After byte 31 it is need to send again the chip
address followed by the subaddress 32 and the databytes starting from 32 up to 39!
5.1
Address organization
Table 9. Address organization
Function Addr
7
6
5
4
3
2
CHARGEPUMP 0 FMSEEK CURRH
B1
B0
A3
A2
1
PLL COUNTER
2
PC7
PC15
PC6
PC14
PC5
PC13
PC4
PC12
PC3
PC11
PC2
PC10
TV1
3 TV1O7 TV1O6 TV1O5 TV1O4 TV1O3 TV1O2
TV2
4 TV2O7 TV2O6 TV2O5 TV2O4 TV2O3 TV2O2
IFC CTRL 1
5 LDENA CASF IFCM1 IFCM0 IFENA IFS2
IFC CTRL 2
6
EW2
EW1
EW0
CF4
CF3
CF2
AM CTL
7
LM TVMODE TV2WB TV1WB AMD1 AMD0
QUALITYISS 8 TISS2 TISS1 TISS0
---
ISS30 ISS80
QUALITY AC 9 ACNTH1 ACNTH0 ACWTH2 ACWTH1 ACWTH0 ACG
QUALITY MP 10 MPAC APPM2 APPM1 MPTH1 MPTH0 MPG
QUALITYDEV 11 BWCTL DTH1 DTH0 DWTH1 DWTH0 TDEV2
1
0
A1
A0
PC1
PC0
PC9
PC8
TV1O1 TV1O0
TV2O1 TV2O0
IFS1
IFS0
CF1
CF0
AMST AMSEEK
ISSON CTLOFF
ACF
---
MPF MPOFF
TDEV1 TDEV0
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