TSL2568, TSL2569
LIGHT-TO-DIGITAL CONVERTER
TAOS091D  DECEMBER 2008
6
r
r
Copyright E 2008, TAOS Inc.
The LUMENOLOGY r Company
www.taosinc.com
PARAMETER MEASUREMENT INFORMATION
SDA
SCL
Stop
Start
SCL
ACK
t
(LOWMEXT)
t
(LOWMEXT)
t
(LOWSEXT)
SCL
ACK
t
(LOWMEXT)
Start
Condition
Stop
Condition
P
SDA
t
(SUSTO)
t
(SUDAT)
t
(HDDAT)
t
(BUF)
V
IH
V
IL
SCL
t
(SUSTA)
t
(HIGH)
t
(F)
t
(R)
t
(HDSTA)
t
(LOW)
V
IH
V
IL
P
S
S
Figure 1. Timing Diagrams
A0
A1
A2
A3
A4
A5
A6
SCL
Start by
Master
SDA
1
9
1
9
D1
D2
D3
D4
D5
D6
D7
D0
R/W
Frame 1 SMBus Slave Address Byte
Frame 2 Command Byte
ACK by
TSL256x
Stop by
Master
ACK by
TSL256x
Figure 2. Example Timing Diagram for SMBus Send Byte Format
A0
A1
A2
A3
A4
A5
A6
SCL
Start by
Master
SDA
1
9
1
9
D1
D2
D3
D4
D5
D6
D7
D0
R/W
Frame 1 SMBus Slave Address Byte
Frame 2 Data Byte From TSL256x
ACK by
TSL256x
Stop by
Master
NACK by
Master
Figure 3. Example Timing Diagram for SMBus Receive Byte Format
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