Preliminary
...the world's most energy friendly microcontrollers
2010-04-09 - t0005_1.10
16
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10.2 Register Description
10.2.1 BC_BC_CFG - Board Controller Config register
Offset
Bit Position
0x000
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reset
0
Access
RW
Name
BC_CFG
Bit
Name
Reset
Access
Description
15:1
Reserved
To ensure compatibility with future devices, always write bits to 0.
0
BC_CFG
0
RW
Board controller configuration
Use this bit to change between SPI and EBI interface on the board controller
Value
Mode
Description
0
SPI
The BC is configured to use the SPI interface.
1
EBI
The BC is configured to use the EBI interface.
10.2.2 BC_EM - Energy Mode register
Offset
Bit Position
0x002
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reset
0x0
Access
RW
Name
EM
Bit
Name
Reset
Access
Description
15:3
Reserved
To ensure compatibility with future devices, always write bits to 0.
2:0
EM
0x0
RW
Energy Mode register
This register is used to store the Energy Mode the EFM is running in.
10.2.3 BC_MAGIC - Magic number
Offset
Bit Position
0x004
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reset
0xEF32
Access
R
Name
MAGIC
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