BH1780GLI-E2 Rohm Semiconductor, BH1780GLI-E2 Datasheet - Page 8

• Manufacturer Part Number: BH1780GLI-E2
• Description: IC AMBIENT LIGHT SENSOR 4WLGA
• Manufacturer: Rohm Semiconductor

Specifications of BH1780GLI-E2

• Output Type: I²C™
• Package / Case: 4-WLGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Wavelength: -
• Other names: BH1780GLI-E2TR

● I
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BH1780GLI
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2
C Bus Communication
1) Slave Address "0101001"
2) Main write Format
3) Main read Format
1. Write to Command Register
2. Write to Control Register
3. Write to Command Register and Control Register
0h - Ah - BH1780GLI outputs Data from specified ADDRESS Field of Command Register until Master issues stop
condition.Read cycle is Bh - Ch - Dh - 0h - Ah - Bh - Ch - Dh ………
ex) If ADDRESS Field of Command Register is Ch, then BH1780GLI outputs data like seeing in below.
ST
ST
Data specified at ADDRESS Field
Ch - Dh -0h - Ah - Bh - Ch - Dh - 0h - Ah …. It is continued until Master issues stop condition.
ST
S T
of Command Register+1
Slave Address
Slave Address
0101001
0101001
Slave Address
Slave Address
0101001
0101001
※ It is necessary that ADDRESS Field of Command Register must set "0000".
Control Register ( 0h )
ACK
000000XX
W
W
0
0
・・・・・・
W
0
ACK
ACK
R
1
8/13
ACK
ACK
ACK
Data to Command Register
Field of Command Register +N
Data specified at ADDRESS Field
Data to Control Register
Data specified at ADDRESS
of Command Register
Command Register
1000XXXX
000000XX
ACK
1000XXXX
SP
※ Data<7:2> must be "000000"
※ Data<7:4> must be "1000"
NACK
ACK
ACK
Technical Note
2009.11 - Rev.A
ACK
ACK
SP
SP
SP