XC161CJ_02 Datasheet, PDF (18/78 Pages) Infineon Technologies AG – 16-Bi t Single-Chip Microcontroller Preliminary

XC161
Derivatives
Preliminary
General Device Information
Table 2
Pin Definitions and Functions (cont’d)
Symbol Pin Input Function
Num. Outp.
PORT0
IO
P0L.0-7 95 -
102
P0H.0-1 105 -
106
P0H.2-7 111 -
116
PORT0 consists of the two 8-bit bidirectional I/O ports P0L
and P0H. It is bit-wise programmable for input or output via
direction bits. For a pin configured as input, the output driver
is put into high-impedance state.
In case of an external bus configuration, PORT0 serves as
the address (A) and address/data (AD) bus in multiplexed
bus modes and as the data (D) bus in demultiplexed bus
modes.
Demultiplexed bus modes:
Data Path Width: 8-bit
16-bit
P0L.0 – P0L.7:
D0 – D7
D0 - D7
P0H.0 – P0H.7: I/O
D8 - D15
Multiplexed bus modes:
Data Path Width: 8-bit
16-bit
P0L.0 – P0L.7: AD0 – AD7 AD0 - AD7
P0H.0 – P0H.7: A8 - A15 AD8 - AD15
Note: At the end of an external reset (EA = ’0’) PORT0 also
may input configuration values.
PORT1
IO
P1L.0-6 117 - O
123
P1L.7 124 I/O
P1H.0 127 I/O
O
P1H.1 128 O
P1H.2 129 I/O
P1H.3 130 I/O
I
P1H.4 131 I/O
P1H.5 132 I/O
P1H.6 133 I/O
P1H.7 134 I/O
PORT1 consists of the two 8-bit bidirectional I/O ports P1L
and P1H. It is bit-wise programmable for input or output via
direction bits. For a pin configured as input, the output driver
is put into high-impedance state. PORT1 is used as the 16-
bit address bus (A) in demultiplexed bus modes (also after
switching from a demultiplexed to a multiplexed bus mode).
The following PORT1 pins also serve for alt. functions:
(A0-6)
Address output only
CC22IO
CC23IO
EX0IN
MRST1
MTSR1
SCLK1
EX0IN
CC24IO
CC25IO
CC26IO
CC27IO
CAPCOM2: CC22 Capture Inp./Compare Outp.
CAPCOM2: CC23 Capture Inp./Compare Outp.,
Fast External Interrupt 0 Input (alternate pin B)
SSC1 Master-Receive/Slave-Transmit In/Outp.
SSC1 Master-Transmit/Slave-Receive Out/Inp.
SSC1 Master Clock Output / Slave Clock Input,
Fast External Interrupt 0 Input (alternate pin A)
CAPCOM2: CC24 Capture Inp./Compare Outp.
CAPCOM2: CC25 Capture Inp./Compare Outp.
CAPCOM2: CC26 Capture Inp./Compare Outp.
CAPCOM2: CC27 Capture Inp./Compare Outp.
Data Sheet
14
V1.0, 2002-03