User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 743 of 909 2019 Ambiq Micro, Inc.
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26:24 ADSEL1 0x0 RW
Select the number of measurements to average in the accumulate divide
module for this slot.
AVG_1_MSRMT = 0x0 - Average in 1 measurement in the accumulate
divide module for this slot.
AVG_2_MSRMTS = 0x1 - Average in 2 measurements in the accumulate
divide module for this slot.
AVG_4_MSRMTS = 0x2 - Average in 4 measurements in the accumulate
divide module for this slot.
AVG_8_MSRMT = 0x3 - Average in 8 measurements in the accumulate
divide module for this slot.
AVG_16_MSRMTS = 0x4 - Average in 16 measurements in the accumulate
divide module for this slot.
AVG_32_MSRMTS = 0x5 - Average in 32 measurements in the accumulate
divide module for this slot.
AVG_64_MSRMTS = 0x6 - Average in 64 measurements in the accumulate
divide module for this slot.
AVG_128_MSRMTS = 0x7 - Average in 128 measurements in the accumu-
late divide module for this slot.
23:18 RSVD 0x0 RO
RESERVED.
17:16 PRMODE1 0x0 RW
Set the Precision Mode For Slot.
P14B = 0x0 - 14-bit precision mode
P12B = 0x1 - 12-bit precision mode
P10B = 0x2 - 10-bit precision mode
P8B = 0x3 - 8-bit precision mode
15:12 RSVD 0x0 RO
RESERVED.
11:8 CHSEL1 0x0 RW
Select one of the 14 channel inputs for this slot.
SE0 = 0x0 - single ended external GPIO connection to pad16.
SE1 = 0x1 - single ended external GPIO connection to pad29.
SE2 = 0x2 - single ended external GPIO connection to pad11.
SE3 = 0x3 - single ended external GPIO connection to pad31.
SE4 = 0x4 - single ended external GPIO connection to pad32.
SE5 = 0x5 - single ended external GPIO connection to pad33.
SE6 = 0x6 - single ended external GPIO connection to pad34.
SE7 = 0x7 - single ended external GPIO connection to pad35.
SE8 = 0x8 - single ended external GPIO connection to pad13.
SE9 = 0x9 - single ended external GPIO connection to pad12.
DF0 = 0xA - differential external GPIO connections to pad12(N) and
pad13(P).
DF1 = 0xB - differential external GPIO connections to pad15(N) and
pad14(P).
TEMP = 0xC - internal temperature sensor.
BATT = 0xD - internal voltage divide-by-3 connection.
VSS = 0xE - Input VSS
7:2 RSVD 0x0 RO
RESERVED.
1 WCEN1 0x0 RW
This bit enables the window compare function for slot 1.
WCEN = 0x1 - Enable the window compare for slot 1.
0 SLEN1 0x0 RW
This bit enables slot 1 for ADC conversions.
SLEN = 0x1 - Enable slot 1 for ADC conversions.
Table 1085: SL1CFG Register Bits
Bit Name Reset RW Description