AT32UC3L0256_14 Datasheet, PDF (697/852 Pages) ATMEL Corporation – Read-modify-write Instructions and Atomic Bit Manipulation

28.7.21 Discharge Current Source Register
Name:
DICS
Access Type:
Read/Write
Offset:
0x5C
Reset Value:
0x00000000
AT32UC3L0128/256
31
30
29
28
27
26
25
24
FSOURCES[7:0]
23
22
21
20
19
18
17
16
GLEN
-
-
-
-
-
INTVREFSEL INTREFSEL
15
14
13
12
11
10
9
8
-
-
-
TRIM
7
6
5
4
3
2
1
0
SOURCES[7:0]
• FSOURCES: Force Discharge Current Sources
When FSOURCES[n] is 0, the corresponding discharge current source behavior depends on SOURCES[n].
When FSOURCES[n] is 1, the corresponding discharge current source is forced to be enabled continuously. This is useful for
testing or debugging but should not be done during normal acquisition.
• GLEN: Global Enable
0: The current source module is globally disabled.
1: The current source module is globally enabled.
• INTVREFSEL: Internal Voltage Reference Select
0: The voltage for the reference resistor is generated from the internal band gap circuit.
1: The voltage for the reference resistor is VDDIO/3.
• INTREFSEL: Internal Reference Select
0: The reference current flows through an external resistor on the DIS pin.
1: The reference current flows through the internal reference resistor.
• TRIM: Reference Current Trimming
This field is used to trim the discharge current. 0x00 corresponds to the minimum current value, and 0x1F corresponds to the
maximum current value.
• SOURCES: Enable Discharge Current Sources
When SOURCES[n] is 0, the corresponding discharge current source is disabled.
When SOURCES[n] is 1, the corresponding discharge current source is enabled at appropriate times during acquisition.
32145C–06/2013
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