339
SAM4CP [DATASHEET]
43051E–ATPL–08/14
20.6.5 Supply Controller Mode Register
Name:
SUPC_MR
Address:
0x400E1418
Access:
Read/Write
LCDVROUT: LCD Voltage Regulator Output
Adjusts the output voltage of the LCD Voltage Regulator. Refer to the Electrical Characteristics for voltage values.
LCDMODE: LCD Controller Mode of Operation
BODRSTEN: Brownout Detector Reset Enable
0 (NOT_ENABLE) = The system reset signal is not affected when a brownout detection occurs.
1 (ENABLE) = The system reset signal is asserted when a brownout detection occurs.
BODDIS: Brownout Detector Disable
0 (ENABLE) = The core brownout detector is enabled.
1 (DISABLE) = The core brownout detector is disabled.
ONREG: Voltage Regulator enable
0 (ONREG_UNUSED) = Internal voltage regulator is not used (external power supply is used).
1 (ONREG_USED) = Internal voltage regulator is used.
BUPPOREN: Backup Area Power-On Reset Enable
0 (BUPPOR_DISABLE) = Disables the backup POR.
1 (BUPPOR_ENABLE) = Enables the backup POR.
Note:
The value written in BUPPOREN is effective when BUPPORS has the same value in
”Supply Controller Status
Register”
.
31
30
29
28
27
26
25
24
KEY
23
–
22
–
21
–
20
19
–
18
–
17
–
16
–
OSCBYPASS
15
14
13
12
11
–
10
–
9
–
8
–
BUPPOREN
ONREG
BODDIS
BODRSTEN
7
–
6
–
5
4
3
2
1
0
LCDMODE
LCDVROUT
Value
Name
Description
0x0
LCDOFF
The internal supply source and the external supply source are both deselected.(OFF Mode).
0x2
LCDON_EXTVR
The external supply source for LCD (VDDLCD) is selected (the LCD voltage regulator is in Hi-Z Mode).
0x3
LCDON_INVR
The internal supply source for LCD (the LCD Voltage Regulator) is selected (Active Mode).