NJW1138L データシートの表示（PDF） - Japan Radio Corporation
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NJW1138L Datasheet PDF : 21 Pages
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NJW1138
s DEFINITION OF I2C REGISTER
♦ I2C BUS FORMAT
MSB
LSB
MSB
LSB
S Slave Address A Select Address
MSB
A
1bit
8bit
1bit
8bit
1bit
Data
8bit
S: Starting Term
A: Acknowledge Bit
P: Ending Term
♦ SLAVE ADDRESS
MSB
LSB
1
0
0
0
0
0
1 R/W
LSB
AP
1bit 1bit
R/W=0: Receive Only
R/W=1: No Output Data
♦ CONTROL REGISTER TABLE
The select address sets each function (Volume, Balance, AGC, Surround, Tone Control, AUX).
The auto increment function cycles the select address as follows.
00H¡01H¡02H¡03H¡04H¡05H¡00H
Select
Address
00H
01H
02H
03H
04H(✴)
05H
D7
CHS
BCB
BCT
0
OUT
BIT
D6
D5
D4
D3
VOL
BAL
BASS
TREB
0
0
0
0
Don’t care Don’t care SUR0
AGC1
♦ CONTROL REGISTER DEFAULT VALUE
Control register default value is all “0”.
Select
Address
D7
D6
D5
00H
0
0
0
01H
0
0
0
02H
0
0
0
03H
0
0
0
04H
0
0
0
05H
0
0
0
BIT
D4
D3
0
0
0
0
0
0
0
0
0
0
0
0
D2
D1
D0
AGC
SUR
BCSB
SUB-BASS
BCST
SUB-TREB
0
0
0
AGC0
AUX1
AUX0
(✴) Please send the data only “0”
D2
D1
D0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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