NJW1191 データシートの表示（PDF） - Japan Radio Corporation
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NJW1191 Datasheet PDF : 20 Pages
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NJW1191
!DEFINITION OF I2C REGISTER
♦I2C BUS FORMAT
MSB
LSB
S
Slave Address
A
MSB
LSB
Select Address
MSB
A
1bit
8bit
1bit
8bit
1bit
S: Starting Term
A: Acknowledge Bit
P: Ending Term
♦SLAVE ADDRESS
Data
8bit
LSB
AP
1bit 1bit
MSB
1
0
Slave Address
0
0
0
0
Hex
LSB
-
0
0
80(h)
♦CONTROL REGISTER TABLE
The select address sets each function (Volume, Loudness, Balance, Fader, Tone Control, Input Selector).
The auto increment function cycles the select address as follows.
00H→01H→02H→03H→04H→00H
<Write Mode>
Select
Address
00H
01H
02H
03H
04H
D7
D6
D5
Amp Gain
VOL2FL (Front Left)
VOL2RL (Rear Left)
BCB
Tone Bass
FLMute
FRMute
RLMute
♦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
BIT
D4
RRMute
D3
D2
D1
D0
VOL1
VOL2FR (Front Right)
VOL2RR (Rear Right)
BCT
Tone Treble
Input Selector
Loudness
Test *
* Test : Set D0=0 in usually.
(For device check use only)
BIT
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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