TSC2007-Q1
www.ti.com
SBAS545 –SEPTEMBER 2011
I2C Write
I2C Read
Clock Stretched
CL
CLK
Address Byte
Command Byte
Address Byte
Data Byte 1
Data Byte 2
R/W
1
R/W
0
PD0
0
D11 D10 D9 D8 D7 D6 D5 D4
0
D3 D2 D1 D0
0
0
0
0
1
1
0
0
1
0
A1 A0
0
C3 C2 C1 C0 PD1
M
X
1
0
0
1
0
A1 A0
0
DA
TSC2007
ACK
TSC2007
ACK
TSC2007
ACK
MASTER
NACK
MASTER
ACK
Acquisition 1
6 SCLs
Conversion 1
15 CCLKs
Acquisition 2
4 CCLKs
Conversion 2
15 CCLKs
Conversion 7
15 CCLKs
MAV Filter
19 CCLKs
STOP or
REPEATED STAR
START
STOP or
REPEATED START (
)
148 CCLKs (Filter is Enabled, 12-Bit Mode)
Figure 33. Data Acquisition Cycle (Filter Enabled)
I2C Write
I2C Read
Clock Stretched
SCL
CCLK
Address Byte
Command Byte
Address Byte
Data Byte 1
Data Byte 2
R/W
1
R/W
0
D11 D10 D9 D8 D7 D6 D5 D4
0
D3 D2 D1 D0
0
0
0
0
1
1
0
0
1
0
A1 A0
0
C3 C2 C1 C0 PD1 PD0
M
X
0
1
0
0
1
0
A1 A0
0
SDA
TSC2007
ACK
TSC2007
ACK
Acquisition 1
6 SCLs
TSC2007
ACK
MASTER
NACK
MASTER
ACK
Conversion 1
15 CCLKs
STOP or
REPEATED START
START
STOP or
REPEATED START (
)
15 CCLKs (Filter is Disabled, 12-Bit Mode)
Figure 34. Data Acquisition Cycle (Filter Disabled)
Copyright © 2011, Texas Instruments Incorporated
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