參數(shù)資料
型號: ADT7317ARQ
廠商: Analog Devices, Inc.
元件分類: 圓形連接器
英文描述: Circular Connector; No. of Contacts:37; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:15; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:15-35
中文描述: SPI/I2C兼容,10位數(shù)字溫度傳感器和四DAC的電壓輸出12/10/8-Bit
文件頁數(shù): 30/32頁
文件大?。?/td> 340K
代理商: ADT7317ARQ
30
REV. PrN
PRELIMINARY TECHNICAL DATA
ADT7316/7317/7318
Writing data to a Register.
All registers are 8-bit registers so only one byte of data
can be written to each register. Writing a single byte of
data to one of these Read/Write registers consists of 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 illustrated in Figure
18. To write to a different register, another START or
repeated START is required. If more than one byte of
data is sent in one communication operation, the ad-
dressed register will be repeately loaded until the last data
byte has been sent.
READING DATA FROM THE ADT7316/7317/7318
Reading data from the ADT7516/7517/7518 is done in a
one byte operation. Reading back the contents of a register
is shown in Figure 19. The register address previously
Figure 23. SPI - Reading a two bytes of data from two sequential registers
Figure 22. SPI - Reading a single byte of data from a selected register
D7
D
IN
D6
D5
D4
D3
D2
D1
X
X
X
X
X
X
X
D0
X
SCLK
START
READ COMMAND
DATA BYTE 1
1
8
1
8
CS
X
D
OUT
X
X
X
X
X
X
D6
D5
D4
D3
D2
D1
D0
X
D7
STOP
D7
D
IN
D6
D5
D4
D3
D2
D1
X
X
X
X
X
X
X
D0
X
SCLK
START
READ COMMAND
DATA BYTE 1
1
8
1
8
CS
X
D
OUT
X
X
X
X
X
X
D6
D5
D4
D3
D2
D1
D0
X
D7
STOP
DATA BYTE 2
X
X
X
X
X
X
X
X
D
IN
(CONTINUED)
1
8
SCLK (CONTINUED)
CS (CONTINUED)
D7
D6
D5
D4
D3
D2
D1
D0
D
OUT
(CONTINUED)
having been set up by a single byte write operation to the
Address Pointer Register. If you want to read from another
register then you will have to write to the Address Pointer
Register again to set up the relevant register address. Thus
block reads are not possible i.e. no I
2
C auto-increment.
SPI SERIAL INTERFACE
The SPI serial interface of the ADT7316/7317/7318 con-
sists of four wires,
, SCLK, DIN and DOUT. The
is used to select the device when more than one device is
connected to the serial clock and data lines. The SCLK is
used to clock data in and out of the part. The DIN line is
used to write to the registers and the DOUT line is used
to read data back from the registers.
The part operates in a slave mode and requires an exter-
nally applied serial clock to the SCLK input. The serial
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