TC1775 Datasheet, PDF (26/101 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1775
Preliminary
Parallel Ports
The TC1775 has 196 digital input/output port lines, which are organized into twelve
parallel 16-bit ports, Port 0 to Port 5 with 2.5 V nominal voltage (pin class B), and Port 8
to Port 13 with 3.0 to 5.25 V voltage (pin class A). Additionally, 32 analog input port lines
are available, which are organized into two parallel 16-bit ports, Port 6 and Port 7.
The digital parallel ports can be all used as general purpose I/O lines or they can perform
input/output functions for the on-chip peripheral units.
Port 0 to Port 5 are especially dedicated for the on-chip External Bus Interface Unit to
communicate with external memories, external peripherals, or external debugging
devices via an external bus interface. Port 8 to Port 13 can be assigned to the on-chip
peripheral units for their specific I/O operations. An overview on the port-to-peripheral
unit assignment is shown in Figure 4.
Note: For further details on the three pin classes of the TC1775 I/O pins see also
Table 10 on Page 64:
Alternate Functions G PIO
Address/Data Bus Port 0
Address/Data Bus Port 1
Address Bus Port 2
Address Bus
Bus Control Lines
Port 3
Bus Control Lines Port 4
OCDS Trace Lines Port 5
TC 1775
P a ra lle l
Ports
Port 6
Port 7
ADC0
ADC1
Figure 4 Parallel Ports of the TC1775
G PIO Alternate Functions
Port 8 GPTA
Port 9 GPTA
Port 10 GPTA
Port 11 GPTA
Port 12 ADC0/1 / ASC0/1 / SDLM
Port 13
SSC0/1 / ASC0/1 /
GPTU / CAN
MCA04734
Data Sheet
22
V1.2, 2002-05