EVAL-ADT7310EBZ Analog Devices Inc, EVAL-ADT7310EBZ Datasheet - Page 19

• Manufacturer Part Number: EVAL-ADT7310EBZ
• Manufacturer: Analog Devices Inc

Specifications of EVAL-ADT7310EBZ

• Lead Free Status / Rohs Status: Supplier Unconfirmed

WRITING DATA
Data is written to the ADT7310 in eight bits or 16 bits, depending
on the addressed register. The first byte written to the device is
the command byte, with the read/write bit set to 0. The master
then supplies the 8-bit or 16-bit input data on the DIN line.
The ADT7310 clocks the data into the register addressed in
the command byte on the positive edge of SCLK. The master
finishes the write by pulling CS high.
SCLK
DIN
CS
C7
0
1
SCLK
DOUT
SCLK
DIN
R/W
CS
DIN
C6
CS
2
8-BIT COMMAND BYTE
REGISTER ADDR
C5
3
C7
C4
0
C7
1
0
4
1
R/W
C6
C3
R/W
C6
2
5
2
8-BIT COMMAND BYTE
REGISTER ADDR
CONT
READ
C5
C2
8-BIT COMMAND WORD
REGISTER ADDR
C5
3
6
3
C4
C1
0
C4
4
7
4
C3
C0
0
C3
5
8
Figure 20. Read from an 8-Bit Register
Figure 18. Writing to an 8-Bit Register
Figure 19. Writing to a 16-Bit Register
5
CONT
READ
C2
D15
CONT
READ
C2
6
9
6
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C1
D14
0
C1
7
10
0
7
C0
D13
0
C0
8
11
0
8
D7
D12
D7
9
12
Figure 18 shows a write to an 8-bit register, and Figure 19 shows
a write to a 16-bit register.
The master must begin a new write transaction on the bus for
every register write. Only one register is written to per bus
transaction.
9
D6
D11
10
D6
13
10
D5
D10
11
D5
14
11
8-BIT DATA
8-BIT DATA
16-BIT DATA
D4
D9
12
D4
15
12
D3
D8
13
D3
16
13
D2
D7
14
D2
17
14
D1
15
D1
15
D0
16
D0
16
D2
22
D1
23
D0
ADT7310
24