
Specification
TUA 4401
Semiconductor Group
20
1.6.99
8.13
Bus Interface
Pin Function
8.13.1 Bus Data Format
I
2
C Bus Write Mode
I
2
C Bus Read Mode
1): mandatory LOW send by uP, 2): mandatory HiGH send by uP
3W Bus Write Mode
3W Bus Read Mode
Chipaddress Organisation
Subaddress Organisation
Pin name
BUS_MODE
BUS_ENA
SCL
SDA
Function
Bus mode select
Enable
Serial clock
Serial data
I2C-mode
Low
High=Inactiv
Low=Activ
Clock input
Data in / out
3Wire mode
High
Data in
MSB
CHIP ADDRESS (WRITE)
LSB
MSB
SUB ADDRESS (WRITE)
00H...07H, 0BH
LSB
MSB
DATA IN X...0 (X=7 or 15)
LSB
STA
1
1
0
0
1
1
0
0
ACK
S7
S6
S5
S4
S3
S2
S1
S0
ACK
DX
...
D5
D4
D3
D2
D1
D0
ACK
STO
MSB
CHIP ADDRESS (WRITE)
LSB
MSB
SUB ADDRESS (READ) 82H, 83H
LSB
MSB
CHIP ADDRESS (READ)
LSB
STA
1
1
0
0
1
1
0
0
ACK
1
0
0
0
0
0
1
0
ACK
STA
1
1
0
0
1
1
0
1
ACK
MSB
DATA OUT FROM SUB ADD 82H
LSB
MSB
DATA OUT FROM SUB ADD 82H, 83H
LSB
R15
R14
R13
R12
R11
R10
R9
R8
ACK
1)
R7
R6
R5
R4
R3
R2
R1
R0
ACK
2)
STO
MSB
SUB ADDRESS (WRITE)
00H...07H, 0BH
LSB
MSB
DATA IN X...0 (X=7 or 15)
LSB
S7
S6
S5
S4
S3
S2
S1
S0
DX
...
D5
D4
D3
D2
D1
D0
MSB
SUB ADDRESS (READ) 82H, 83H
LSB
MSB
DATA OUT FROM SUB ADD
82H (MSB)
LSB
MSB
DATA OUT FROM SUB ADD
82H (LSB) / 83H (LSB)
LSB
1
0
0
0
0
0
1
0
R15
R14
R13
R12
R11
R10
R9
R8
R7
R6
R5
R4
R3
R2
R1
R0
Chip Address (only I
2
C mode)
MSB
LSB
Function
1
1
0
0
1
1
0
0
Chip Address Write
1
1
0
0
1
1
0
1
Chip Address Read
Sub Addresses of Data Registers Write
MSB
Bin
LSB
Hex
Function
0
0
0
0
0
0
0
0
00H
Status
0
0
0
0
0
0
0
1
01H
R_Counter
0
0
0
0
0
0
1
0
02H
N_Counter
0
0
0
0
0
0
1
1
03H
Mute_DAC7
0
0
0
0
0
1
0
0
04H
IF_COUNT_P1
0
0
0
0
0
1
0
1
05H
IF_COUNT_P2
0
0
0
0
0
1
1
0
06H
Specials
0
0
0
0
0
1
1
1
07H
Gain_DAC4
0
0
0
0
1
0
1
1
0BH
COMP_PRESET
Sub Address of Data Register Read
MSB
Bin
LSB
Hex
Function
1
0
0
0
0
0
1
0
82H
Result Multipath, Field-
strength, IF_Window
and IF_Center
1
0
0
0
0
0
1
1
83H
Result-MISC