Datasheet

ADS8634
ADS8638
www.ti.com SBAS541A –MAY 2011– REVISED AUGUST 2011
Auto-Md Ch-Sel: Channel Selection Registers for Auto-Scan Mode (Address = 0Ch; Page 0)
7 6 5 4 3 2 1 0
Sel Ch0 X
(1)
Sel Ch1 X Sel Ch2 X Sel Ch3 X
(1) X = don't care.
This register selects channels for the auto-mode sequence. The device scans only the selected channels in
ascending order during auto-scan mode, starting with the lowest channel selected. For example, if the Auto-Md
Ch-Sel register is programmed to 01100100, then the auto-mode sequence is channels 2, 5, 6, 2, 5, 6…2, 5, 6,
and in this case, the sequence always starts from channel 2. Channel 0 is selected if this register is programmed
to 00000000.
Bit 7 Sel Ch0
This bit selects channel 0.
0 = Channel 0 not selected
1 = Channel 0 selected
Bit 6 Don't care (can be 1 or 0); this bit has no function assigned
Bit 5 Sel Ch1
This bit selects channel 1.
0 = Channel 1 not selected
1 = Channel 1 selected
Bit 4 Don't care (can be 1 or 0); this bit has no function assigned
Bit 3 Sel Ch2
This bit selects channel 2.
0 = Channel 2 not selected
1 = Channel 2 selected
Bit 2 Don't care (can be 1 or 0); this bit has no function assigned
Bit 1 Sel Ch3
This bit selects channel 3.
0 = Channel 3 not selected
1 = Channel 3 selected
Bit 0 Don't care (can be 1 or 0); this bit has no function assigned
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