TC1765T datasheet(22/88 Pages) INFINEON

22 / 88 page

TC1765

Data Sheet

V1.2, 2002-12

Preliminary

Parallel Ports

The TC1765 has 77 digital input/output port lines organized into four parallel 16-bit ports

(Port 0 to Port 3), one 8-bit port (Port 4), and one 5-bit port (Port 5). Additionally,

24 analog input port lines are available. The External Bus Unit (EBU) is provided with

dedicated data, address, and control lines. A 16-bit Trace Port is available only in the

TC1765T.

The digital parallel ports Port 0 to Port 5 can be all used as general purpose I/O lines or

they can perform input/output functions for the on-chip peripheral units. The on-chip

External Bus Interface Unit allows to communicate with external memories, external

peripherals, or external debugging devices. 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 TC1765 I/O pins see also Table 8

on Page 56):

Figure 4

Parallel Ports of the TC1765

TC 1765N

TC 1765T

Pa ralle l

Po rts

M C A 04981

Po rt 0

Po rt 1

Po rt 2

Po rt 3

Po rt 4

Po rt 5

G P IO

A ltern ate F unctions

G P T U / A S C 0 / S S C 0 /

CA N / A D C 0 / AD C1

GP T A

GP T A / C F G

AS C1 / S S C 1

E x tern al B u s Interfa ce

TP [15:0]

O C D S T rac e P o rt

(T C 1765 T on ly)

A d dress B us A [23:0]

D a ta B u s D [31:0]

A N [23:0]

C o ntro l Lines

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