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ADS79XXEVM Datasheet(PDF) 5 Page - Texas Instruments |
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ADS79XXEVM Datasheet(HTML) 5 Page - Texas Instruments |
5 / 32 page www.ti.com Digital Interface 3 Digital Interface 3.1 Serial Data Interface The ADS7953EVM is designed to easily interface with multiple control platforms. Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a convenient 10-pin, dual-row, header/socket combination at P2. This header/socket provides access to the digital control and serial data pins of the ADC. Consult Samtec at http://www.samtec.com or call 1-800-SAMTEC-9 for a variety of mating connector options. Table 4 describes the P2 serial interface pins. Table 4. Serial Interface Pins Pin No. Pin Name Signal Name I/O Type Pullup Function P2.1 CNTL CS In None Controls CS input, Jumper option with P2.7 via W5 P2.2 GPIO0 GPIO2 In/Out High GPIO P2.3 CLKX SCLK In None ADS79xx serial clock P2.4 DGND DGND NA None Digital Ground P2.5 CLKR CLKR Out None serial clock return to DSP P2.6 GPIO1 GPIO3 In/Out High GPIO P2.7 FSX FSYNC Xmit In None Controls CS input, Jumper option with P2.1 via W5 P2.8 GPIO2 Unused NA NA P2.9 FSR FSYNC rtrn Out None P2.10 DGND DGND NA None Digital Ground P2.11 DX DIN In None ADS79xx SPI data in P2.12 GPIO3 Unused NA NA P2.13 DR DOUT Out None ADS79xx data out P2.14 GPIO4 Unused NA NA P2.15 /INT GPIO0/GPIO1 Out None Hi/Lo Alarm Interrupt options P2.16 SCL SCL I 2C ™ n/a I 2C clock P2.17 TOUT Unused NA NA P2.18 DGND DGND NA None Digital Ground P2.19 GPIO5 Unused NA NA P2.20 SDA SDA I 2C n/a I 2C data 3.2 Data Output All output data communications are directed through DOUT. The data from all 16 channels can be observed on the DOUT pin. This is the signal that is used by the ADS7953EVM-PDK to read back and display all the channel data via the ADCPro software. 5 SLAU262C – January 2009 – Revised May 2011 ADS79xxEVM and ADS79xxEVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated |
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