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Pin Functions
(4)
Access
Address
Initial Value
15
14
13
12
PFCEn15 PFCEn14 PFCEn13 PFCEn12 PFCEn11 PFCEn10 PFCEn9 PFCEn8 PFCEn7 PFCEn6 PFCEn5 PFCEn4 PFCEn3 PFCEn2 PFCEn1 PFCEn0
R/W
R/W
R/W
R/W
Table 2-7
PFCEn - Port function control expansion register
If a pin is in alternative mode (PMCn.PMCnm = 1) some pins offer up to four
alternative functions.
The PFCEn together with the PFCn register specifies which function of a pin is
to be used. The corresponding port type defines whether a pin is in input or
output mode.
This register can be read/written in 8-bit and 1-bit units.
16-bit registers can also be read/written in 16-bit units.
see "Port Type Diagrams" on page 51
00
or 0000
. This register is initialized by any reset.
H
H
7
6
5
PFCEn7 PFCEn6 PFCEn5 PFCEn4 PFCEn3 PFCEn2 PFCEn1 PFCEn0
R/W
R/W
R/W
11
10
9
R/W
R/W
R/W
R/W
PFCEn register contents
Bit position Bit name
7 to 0
PFCEn[7:0]
15 to 0
PFCEn[15:0]
User's Manual U18743EE1V2UM00
4
3
2
R/W
R/W
R/W
8
7
6
5
R/W
R/W
R/W
See "Pin function configuration (overview)" on page 37
for details
See "Pin function configuration (overview)" on page 37
for details
Chapter 2
1
0
R/W
R/W
4
3
2
1
R/W
R/W
R/W
R/W
Function
0
R/W
41
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