Texas Instruments ADS7861 EVM, User Manual, Page: 13 / 20

3-1 Digital Interface
Digital Interface
The ADS7861/8361 EVM is designed for easy interfacing to multiple control
platforms. Samtec part numbers SSW–110–22–F–D–VS–K and
TSM–110–01–T–DV–P provide a convenient ten-pin dual row header/socket
combination at J2. This header/socket provides access to the digital control
and serial data pins of the ADS7861/8361. Consult Samtec at
www.sam-
tec.com or 1–800–SAMTEC–9 for a variety of mating connector options.
Table 3–1. Header/Socket J2 Description
Pin Number Signal Description
J2.1 CS Chip select—Active low signal, enables data transfer
and device configuration
J2.3 SCLK Serial clock
J2.5 SCLK(R) Serial clock return for DSP host
J2.7 FS Frame sync
J2.9 FS(R) Frame sync return for DSP host
J2.11 SDI Serial data input
J2.13 SDO Serial data output
J2.15 INT Interrupt output—provides an interrupt source to the host
processor
J2.17 CSTART Conversion start—provides an alternate method of
conversion initialization
J2.19 SPARE
Topic Page
3.1 Additional Control Options 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3