XC164CS datasheet(44/71 Pages) INFINEON

44 / 71 page

XC164

Derivatives

Functional Description

Data Sheet

V2.1, 2003-06

Table 7

Summary of the XC164’s Parallel Ports

Port

Control

Alternate Functions

PORT0

Pad drivers

Address/Data lines or data lines1)

PORT1

Pad drivers

Address lines2)

Capture inputs or compare outputs,

Serial interface lines,

Fast external interrupt inputs

Port 3

Pad drivers,

Open drain,

Input threshold

Timer control signals, serial interface lines,

Optional bus control signal BHE/WRH,

System clock output CLKOUT (or FOUT),

Debug interface lines

Port 4

Pad drivers,

Open drain,

Input threshold

Segment address lines3)

Optional chip select signals

CAN interface lines4)

Port 5

---

Analog input channels to the A/D converter,

Timer control signals

Port 9

Pad drivers,

Open drain,

Input threshold

Capture inputs or compare outputs

CAN interface lines4)

Port 20

Pad drivers,

Open drain

Bus control signals RD, WR/WRL, ALE,

External access enable pin EA,

Reset indication output RSTOUT

For multiplexed bus cycles.

For demultiplexed bus cycles.

For more than 64 Kbytes of external resources.

Can be assigned by software.

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