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Pin Functions
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2.2.2 Pin function configuration
The registers for pin function configuration define the general function of a pin:
• input mode or output mode
• port mode or alternative mode
• selection of one of the alternative output functions ALT1-OUT/ALT2-OUT
• pin usage for LCD Controller/Driver output LCD_OUT
• normal mode or on-chip debug mode (N-Wire interface)
An overview of the register settings is given in the table below.
Table 2-3
Pin function configuration (overview)
Function
Port mode (output)
Port mode (input)
Alternative output 1 mode
Alternative output 2 mode
Alternative input mode
LCD signal output
(segment or common signal)
a
On-chip debug mode
a)
In on-chip debug mode, the corresponding pins are automatically set as input or output pins to
provide the N-Wire interface. In this mode the configuration of these pins can not be changed
by the pin configuration registers.
Preliminary User's Manual U17566EE1V2UM00
Registers
OCDM
PLCDC
PMC
0
0
0
1
1
X
1
X
X
Chapter 2
I/O
PFC
PM
X
0
O
X
1
I
0
0
O
1
0
O
X
1
I
X
X
O
X
X
I/O
41
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