ISL45041_14 Datasheet, PDF (6/8 Pages) Intersil Corporation – TFT-LCD I2C Programmable VCOM Calibrator

I²C Bus Format
ISL45041 I²C WRITE FORMAT
BYTE 1
START
MSB
6 BIT ADDRESS
1
0
0
1
1
BYTE 2
DON’T _R/W
CARE
LSB
ACK
MSB
DATA
PROGRAM ACK STOP
LSB
1
X
0
A
D7
D6
D5
D4
D3
D2
D1
P
A
ISL45041 I²C READ FORMAT
BYTE 1
START
MSB
6 BIT ADDRESS
1
0
0
1
1
R/W = 0 = WRITE
R/W = 1 = READ
WHEN R/W = 0
P = 0 = EEPROM PROGRAMMING
P = 1 = REGISTER WRITE
BYTE 2
DON’T
CARE
R/W
ACK START
DATA
ACK STOP
LSB
MSB
LSB
1
X
1
A
D7
D6
D5
D4
D3
D2
D1
D0
A
R/W = 0 = WRITE
R/W = 1 = READ
FIGURE 4. ISL45041 I²C READ AND WRITE FORMAT
I²C Addressing
The ISL45041 will respond identically to either of two I²C address: 1001110x and
1001111x. 100111x is the preferred address. To prevent bus conflicts, ensure that
there are no other devices on the I²C bus with either of the above addresses.