ADC31RF80 datasheet(65/142 Pages) TI2

65 / 142 page

R/W

SDIN

SCLK

SEN

RESET

A11 A10

ADC31RF80

www.ti.com

SBAS860 – AUGUST 2017

Product Folder Links: ADC31RF80

Submit Documentation Feedback

8.4.3.3 Serial Register Write: Digital Bank

The digital bank contains four pages (the offset corrector page, digital gain page, main digital page, and JESD

digital page). Figure 138 shows the timing for the individual page selection. The registers located in the pages of

the digital bank can be programmed by:

1. Driving the SEN pin low.

2. Setting the M bit to 1 and specifying the page with with the desired register. There are seven pages in Digital

Bank. These pages can be selected by appropriately programming register bits DIGITAL BANK PAGE SEL,

located in addresses 002h, 003h, and 004h, using three consecutive SPI cycles. Addressing in a SPI cycle

begins with 4xxx when selecting a page from digital bank because the M bit must be set to 1.

–

To select the offset corrector page: write address 4004h with 61h, 4003h with 00h, and 4002h with 00h.

–

To select the digital gain page: write address 4004h with 61h, 4003h with 00h, and 4002h with 05h.

–

To select the main digital page: write address 4004h with 68h, 4003h with 00h, and 4002h with 00h.

–

To select the JESD digital page: write address 4004h with 69h, 4003h with 00h, and 4002h with 00h.

Figure 138. SPI Write Timing Diagram for Digital Bank Page Selection

ADC31RF80 Datasheet(PDF) 65 Page - Texas Instruments