TB2902HQ 데이터 시트보기 (PDF) - Toshiba
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TB2902HQ Datasheet PDF : 38 Pages
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6. Explanation for Self Diagnosis Via I2C
(1) Bus map
【Slave Address】
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
1
1
0
1
1
0
0
Bit0
0 Write Mode
1 Read Mode
⎯
Details
TB2902HQ
Hex
D8H
【WRITE】
• Sub address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Details
Hex
0
Page Mode (auto increment) OFF
1
Page Mode (auto increment) ON
⎯
0
0
0
0
0
0
1 Control Byte1
01H
⎯
0
0
0
0
0
1
0 Control Byte2
02H
• Control byte1 (01H)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Function
0
0
0
0
0
0
0
1 Clip Det 1% to 10% change
0
0
0
0
0
0
1
0 R-ch Muting off (play)
0
0
0
0
0
1
0
0 Fch Muting off (play)
0
0
0
0
1
0
0
0 R-ch Gain 26dB to 12dB
0
0
0
1
0
0
0
0 Fch Gain 26dB to 12dB
0
0
1
0
0
0
0
0 Offset Det Enable
0
1
0
0
0
0
0
0 Diag Cycle Enable
1
⎯
⎯
⎯
⎯
⎯
⎯
⎯ Turn-on Select (normal/repeatedly)
• Control byte2 (02H)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Function
0
0
0
0
0
0
0
1 R-ch Iccq become Lower
0
0
0
0
0
0
1
0 Fch Iccq become Lower
0
0
0
0
0
1
0
0 Current Detection Enable
0
0
0
0
1
0
0
0 Line Drive Diag
0
0
0
1
0
0
0
0 Stand By OFF (play)
0
0
1
0
0
0
0
0 Clip Det Pin change to Offset Det
⎯
1
⎯
⎯
⎯
⎯
⎯
⎯ Fast mute ON/OFF
1
0
0
0
0
0
0
0
Current Detection. Level change from 500 mA
(max) to 300 mA (max)
Note 4: Self mute circuit is included on chip and is in independent from I2C bus stage.
Self mute operating voltage is VCC = 7.8 V
Note 5: Auto Increment is available.
If control byte 1 is chosen by sub address, it is not necessary to send byte 2 in cases when both byte 1 and
2 are to be written.
Ex) In case of sub address = byte1 chosen:
Sub address byte 1 → byte 1 writing → Sub address byte 2 → byte 2 writing: available
Sub address byte 1 → byte 1 writing ---------------------------- → byte 2 writing: available
6
2004-08-18
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