Texas Instruments ADS1224EVM, Руководство пользователя

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J2: Serial Connector
2-5 Circuit Description
2.1.2 J2: Serial Connector
The serial connector pinout diagram is shown in Figure 2−3 and described in
Table 2−2.
Figure 2−3.
Serial Connector Pinout
1
3
5
7
9
11
13
15
17
19
2
4
6
8
10
12
14
16
18
20
SCLK
DGND
SCL
BUFEN
DRDY
EXTCLK
SDA
DOUT
DGND
DGND
TEMPSEN MUX0
MUX1
Table 2−2. Serial Connector Pin Descriptions
Pin Number Pin Name Standard Name Direction Function
1 TEMPSEN CNTL Input Temperature sensor enable
2 MUX0 GPIO0 Input Channel select, bit 0
3 SCLK CLKX Input Serial clock input
6 MUX1 GPIO1 Input Channel select, bit 1
7 CS FSX Input Chip select
13 DOUT DR Output Serial data output
15 DRDY INT Output Data ready signal
16 SCL SCL I/O I
2
C clock line
17 EXTCLK TOUT Input External system clock input
19 BUFEN GPIO5 Input Buffer enable
20 SDA SDA I/O I
2
C data line
6, 12, 18 GND DGND Power Signal ground