XC2238M Datasheet, PDF (54/102 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller with 32-Bit Performance XC2000 Family Derivatives / Base Line

XC2238M, XC2239M
XC2000 Family Derivatives / Base Line
Functional Description
3.17
Parallel Ports
The XC223xM provides up to 40 I/O lines which are organized into 4 input/output ports
and 2 input ports. 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 XC223xM’s Ports
Port
P2
P5
P6
P7
P10
P15
Width I/O Connected Modules
11
I/O EBC ( A23...A16, AD15...AD13, D15...D13),
CAN, CC2, GPT12E, USIC, DAP/JTAG
7
I Analog Inputs, CCU6, DAP/JTAG, GPT12E, CAN
2
I/O ADC, CAN, GPT12E
1
I/O CAN, GPT12E, SCU, DAP/JTAG, USIC
16
I/O EBC(ALE, RD, WR, AD12...AD0, D12...D0), CCU6, USIC,
DAP/JTAG, CAN
2
I Analog Inputs, GPT12E
Data Sheet
54
V2.0, 2009-03