XC2000 datasheet(23/729 Pages) INFINEON

23 / 729 page

XC2000 Derivatives

Peripheral Units (Vol. 2 of 2)

The General Purpose Timer Units

Preliminary

User’s Manual

14-5

V1.0, 2007-06

GPT_X7, V2.0

T3OTL

rwh

Timer T3 Overflow Toggle Latch

Toggles on each overflow/underflow of T3. Can be

set or reset by software (see separate description)

T3OE

9rw

Overflow/Underflow Output Enable

Alternate Output Function Disabled

State of T3 toggle latch is output on pin T3OUT

T3UDE

8rw

Timer T3 External Up/Down Enable

Input T3EUD is disconnected

Direction influenced by input T3EUD

T3UD

7rw

Timer T3 Up/Down Control

Timer T3 counts up

Timer T3 counts down

T3R

6rw

Timer T3 Run Bit

0Timer T3 stops

1Timer T3 runs

T3M

[5:3]

Timer T3 Mode Control (Basic Operating Mode)

000

Timer Mode

001

Counter Mode

010

Gated Timer Mode with gate active low

011

Gated Timer Mode with gate active high

100

Reserved. Do not use this combination.

101

Reserved. Do not use this combination.

110

Incremental Interface Mode

(Rotation Detection Mode)

111

Incremental Interface Mode

(Edge Detection Mode)

T3I

[2:0]

Timer T3 Input Parameter Selection

Depends on the operating mode, see respective

sections for encoding:

Table 14-7 for Timer Mode and Gated Timer Mode

Table 14-2 for Counter Mode

Table 14-3 for Incremental Interface Mode

1) See Table 14-1 for encoding of bits T3UD and T3UDE.

Field

Bits

Type

Description

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