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ADS8168 Datasheet(PDF) 46 Page - Texas Instruments |
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ADS8168 Datasheet(HTML) 46 Page - Texas Instruments |
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46 / 78 page  46 ADS8168 SBAS817 – NOVEMBER 2017 www.ti.com Product Folder Links: ADS8168 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated 7.6.4 Channel Sequence Configuration Registers Map The device features following channel configuration registers, mapped as described in Table 19. Table 29. Channel Sequence Configuration Registers Mapping ADDRESS REGISTER NAME REGISTER DESCRIPTION 01Ch DEVICE_CFG Device mode and status 01Dh CHANNEL_ID Manual channel selection 01Eh SEQ_START Start sequence control 01Fh SEQ_STOP Abort sequence control 02A ON_THE_FLY_CFG Enable/Disable On-The-Fly Mode 080h AUTO_SEQ_CFG1 Auto Sequence mode channel selection 082h AUTO_SEQ_CFG2 Auto Sequence mode loop control 7.6.4.1 DEVICE_CFG Register (address = 01Ch) [reset = 00h] This register selects the mode of channel sequencing and read back returns device status information. Figure 48. DEVICE_CFG Register 7 6 5 4 3 2 1 0 0 0 0 0 ALERT_STATU S ERROR_STAT US SEQ_MODE[1:0] R-0b R-0b R-0b R-0b R-0b R-0b R/W-00b Table 30. DEVICE_CFG Register Field Descriptions Bit Field Type Reset Description 7-4 0 R 0000b Reserved bits. Do not write. Reads return 0000b. 3 ALERT_STATUS R 0b Read only. This bit reflects the ALERT pin logic level. 2 ERROR_STATUS R 0b Read only. Indicates device configuration error: 0b = No error. 1b = Error in configuration. . 1-0 SEQ_MODE[1:0] R/W 00b Sets the MUX channel selection operation: 00b = Manual mode. 01b = On-The-Fly mode. 10b = Auto Sequence mode. 11b = Lookup Based Sequencing mode. The ALERT_STATUS, ERROR_STATUS and SEQ_MODE[1:0] bits can be collectively decoded to indicate events as shown in Table 31. Table 31. Decoding DEVICE_CFG Read Value ALERT_STATUS ERROR_STATUS SEQ_MODE[1:0] EVENT DESCRIPTION 0 0 00 No ALERT, No error, Manual mode. 0 0 01 No ALERT, No error, On-The-Fly mode. 0 0 10 No ALERT, No error, Auto Sequence mode. 0 0 11 No ALERT, No error, Lookup Based Sequencing mode. 0 1 00 No ALERT, Error, Manual mode. 0 1 01 No ALERT, Error, On-The-Fly mode. 0 1 10 No ALERT, Error, Auto Sequence mode. 0 1 11 No ALERT, Error, Lookup Based Sequencing mode. 1 0 00 ALERT, No error, Manual mode. 1 0 01 ALERT, No error, On-The-Fly mode. 1 0 10 ALERT, No error, Auto Sequence mode. |
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