EVAL-ADT7410EBZ AD [Analog Devices], EVAL-ADT7410EBZ Datasheet - Page 18

• Manufacturer Part Number: EVAL-ADT7410EBZ
• Manufacturer: AD [Analog Devices]

ADT7410
WRITING DATA
It is possible to write either a single byte of data or two bytes to
the ADT7410, depending on which registers are to be written.
Writing a single byte of data requires the serial bus address, the
data register address written to the address pointer register,
followed by the data byte written to the selected data register.
This is shown in Figure 15.
For the T
it is possible to write to both the MSB and the LSB registers in
SDA
SCL
SDA (CONTINUED)
SCL (CONTINUED)
START BY
MASTER
HIGH
SCL
SDA
START BY
MASTER
setpoint
1
1
, T
0
1
1
LOW
SERIAL BUS ADDRESS BYTE
D15
setpoint
1
0
0
SERIAL BUS ADDRESS BYTE
D14
FRAME 1
1
0
, and T
D13
0
FRAME 1
1
CRIT
Figure 15. Writing to a Register Followed by a Single Byte of Data
D12
Figure 16. Writing to a Register Followed by Two Bytes of Data
A1
SDA (CONTINUED)
SCL (CONTINUED)
0
setpoint
DATA BYTE
FRAME 3
D11
A0
A1
registers,
R/W
D10
A0
ADT7410
ACK. BY
D9
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9
R/W
ADT7410
ACK. BY
D8
P7
1
ADT7410
D7
ACK. BY
9
1
P6
9
D6
P7
1
the same write transaction. Writing two bytes of data to these
registers requires the serial bus address, the data register address
of the MSB register written to the address pointer register,
followed by the two data bytes written to the selected data
register. This is shown in Figure 16.
If more than the required number of data bytes is written to a
register, the register ignores these extra data bytes. To write to
a different register, a start or repeated start is required.
ADDRESS POINTER REGISTER BYTE
D7
P5
1
P6
D5
ADDRESS POINTER REGISTER BYTE
P4
D6
D4
P5
FRAME 2
DATA BYTE
FRAME 3
D5
P3
P4
D3
FRAME 2
P2
D4
P3
D2
DATA BYTE
FRAME 4
D3
P1
P2
D1
D2
P0
D0
P1
ADT7410
ACK. BY
ADT7410
ACK. BY
D1
9
P0
9
ADT7410
ACK. BY
D0
ADT7410
ACK. BY
9
STOP BY
MASTER
9
STOP BY
MASTER