User manual
...the world's most energy friendly microcontrollers
2012-04-24 - Giant Gecko Family - d0053_Rev0.96 691
www.energymicro.com
28.4 Register Map
The offset register address is relative to the registers base address.
Offset Name Type Description
0x000 ADCn_CTRL RW Control Register
0x004 ADCn_CMD W1 Command Register
0x008 ADCn_STATUS R Status Register
0x00C ADCn_SINGLECTRL RW Single Sample Control Register
0x010 ADCn_SCANCTRL RW Scan Control Register
0x014 ADCn_IEN RW Interrupt Enable Register
0x018 ADCn_IF R Interrupt Flag Register
0x01C ADCn_IFS W1 Interrupt Flag Set Register
0x020 ADCn_IFC W1 Interrupt Flag Clear Register
0x024 ADCn_SINGLEDATA R Single Conversion Result Data
0x028 ADCn_SCANDATA R Scan Conversion Result Data
0x02C ADCn_SINGLEDATAP R Single Conversion Result Data Peek Register
0x030 ADCn_SCANDATAP R Scan Sequence Result Data Peek Register
0x034 ADCn_CAL RW Calibration Register
0x03C ADCn_BIASPROG RW Bias Programming Register
28.5 Register Description
28.5.1 ADCn_CTRL - Control Register
Offset Bit Position
0x000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reset
0x0
0x1F
0x00
0x0
0
0x0
Access
RW
RW
RW
RW
RW
RW
Name
OVSRSEL
TIMEBASE
PRESC
LPFMODE
TAILGATE
WARMUPMODE
Bit Name Reset Access Description
31:28 Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
27:24 OVSRSEL 0x0 RW Oversample Rate Select
Select oversampling rate. Oversampling must be enabled for each mode for this setting to take effect.
Value Mode Description
0 X2 2 samples for each conversion result
1 X4 4 samples for each conversion result
2 X8 8 samples for each conversion result
3 X16 16 samples for each conversion result
4 X32 32 samples for each conversion result
5 X64 64 samples for each conversion result
6 X128 128 samples for each conversion result
7 X256 256 samples for each conversion result
8 X512 512 samples for each conversion result