XC2723X Datasheet, PDF (53/109 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller with 32-Bit Performance

XC2723X
XC2000 Family / Econo Line
Functional Description
3.17
Parallel Ports
The XC2723X provides up to 33 I/O lines which are organized into 3 input/output ports
and 1 input port. All port lines are bit-addressable, and all input/output lines can be
individually (bit-wise) configured via port control registers. This configuration selects the
direction (input/output), push/pull or open-drain operation, activation of pull devices, and
edge characteristics (shape) and driver characteristics (output current) of the port
drivers. The I/O ports are true bidirectional ports which are switched to high impedance
state when configured as inputs. During the internal reset, all port pins are configured as
inputs without pull devices active.
All port lines have alternate input or output functions associated with them. These
alternate functions can be programmed to be assigned to various port pins to support the
best utilization for a given application. For this reason, certain functions appear several
times in Table 10.
All port lines that are not used for alternate functions may be used as general purpose
I/O lines.
Table 10 Summary of the XC2723X’s Ports
Group
P2
P5
P6
P10
Width I/O Connected Modules
12
I/O Analog inputs, ADC, CAN, CC2, CCU6, DAP/JTAG,
GPT12E, SCU, USIC
6
I Analog inputs, CCU6, JTAG, GPT12E, CC2
3
I/O Analog inputs, ADC, CCU6, JTAG, GPT12E, USIC
12
I/O CAN, CCU6, GPT12E, DAP/JTAG, SPD, USIC
Data Sheet
49
V1.2, 2012-07