Texas Instruments ADS868 Series, Manual

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ADS8684, ADS8688
www.ti.com SBAS582C – JULY 2014 – REVISED APRIL 2015
8.5.2.2 Program Register Map
This section provides a bit-by-bit description of each program register.
Table 9. Program Register Map
REGISTER
DEFAULT
REGISTER ADDRESS BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
VALUE
(1)
BITS[15:9]
AUTO SCAN SEQUENCING CONTROL
AUTO_SEQ_EN 01h FFh CH7_EN
(2)
CH6_EN CH5_EN CH4_EN CH3_EN CH2_EN CH1_EN CH0_EN
Channel Power Down 02h 00h CH7_PD CH6_PD CH5_PD CH4_PD CH3_PD CH2_PD CH1_PD CH0_PD
DEVICE FEATURES SELECTION CONTROL
Feature Select 03h 00h DEV[1:0] 0 0 0 SDO [2:0]
RANGE SELECT REGISTERS
Channel 0 Input Range 05h 00h 0 0 0 0 Range Select Channel 0 [3:0]
Channel 1 Input Range 06h 00h 0 0 0 0 Range Select Channel 1 [3:0]
Channel 2 Input Range 07h 00h 0 0 0 0 Range Select Channel 2 [3:0]
Channel 3 Input Range 08h 00h 0 0 0 0 Range Select Channel 3 [3:0]
Channel 4 Input Range 09h 00h 0 0 0 0 Range Select Channel 4 [3:0]
Channel 5 Input Range 0Ah 00h 0 0 0 0 Range Select Channel 5 [3:0]
Channel 6 Input Range 0Bh 00h 0 0 0 0 Range Select Channel 6 [3:0]
Channel 7 Input Range 0Ch 00h 0 0 0 0 Range Select Channel 7 [3:0]
COMMAND READ BACK (Read-Only)
Command Read Back 3Fh 00h COMMAND_WORD [7:0]
(1) All registers are reset to the default values at power-on or at device reset using the register settings method.
(2) Shading indicates bits or registers that are not included in the 4-channel version of the device. A write operation on any of these bits or
registers has no effect on device behavior. A read operation on any of these bits or registers outputs all 1's on the SDO line.
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