TC1775 Datasheet, PDF (13/101 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1775
Preliminary
Table 1
Symbol
P3
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
P3.8
P3.9
P3.10¹⁾
P3.11¹⁾
P3.12¹⁾
P3.13¹⁾
P3.14¹⁾
P3.15¹⁾
Pin Definitions and Functions (cont’d)
Pin In Functions
Out
I/O Port 3
Port 3 serves as 16-bit general purpose I/O port or as upper
external address bus for the EBU. When used as address
bus, it outputs the addresses A[25:16] of an external access
in demultiplexed bus mode.
P3[9:0] is used as address input by an external bus master
when accessing modules on the internal FPI Bus.
Port 3 also provides chip select output lines CS0 - CS3,
CSEMU, and CSOVL.
AB8 I/O A16
Address bus line 16
AA8 I/O A17
Address bus line 17
AC9 I/O A18
Address bus line 18
Y9
I/O A19
Address bus line 19
AB9 I/O A20
Address bus line 20
AA9 I/O A21
Address bus line 21
AC10 I/O A22
Address bus line 22
AB10 I/O A23
Address bus line 23
AA10 I/O A24
Address bus line 24
Y11 I/O A25
Address bus line 25
AC11 O CS3
Chip select output line 3
AB11 O CS2
Chip select output line 2
AA11 O CS1
Chip select output line 1
AA12 O CS0
Chip select output line 0
AC12 O CSEMU Chip select output for emulator region
AB12 O CSOVL Chip select output for emulator overlay memory
Data Sheet
9
V1.2, 2002-05