C165 datasheet(25/77 Pages) INFINEON

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C165

Data Sheet

V2.0, 2000-12

Figure 6

Block Diagram of GPT1

With its maximum resolution of 8 TCL, the GPT2 module provides precise event control

and time measurement. It includes two timers (T5, T6) and a capture/reload register

(CAPREL). Both timers can be clocked with an input clock which is derived from the CPU

clock. The count direction (up/down) for each timer is programmable by software.

Concatenation of the timers is supported via the output toggle latch (T6OTL) of timer T6,

which changes its state on each timer overflow/underflow.

The state of this latch may be used to clock timer T5 and/or it may be output on pin

T6OUT. The overflows/underflows of timer T6 can cause a reload from the CAPREL

external signal transition on the corresponding port pin (CAPIN), and timer T5 may

optionally be cleared after the capture procedure. This allows the C165 to measure

absolute time differences or to perform pulse multiplication without software overhead.

Mode

Control

2n : 1

CPU

2n : 1

CPU

Mode

Control

GPT1 Timer T2

Reload

Capture

2n : 1

CPU

Mode

Control

GPT1 Timer T4

Reload

Capture

GPT1 Timer T3

T3OTL

U/D

T2EUD

T2IN

T3IN

T3EUD

T4IN

T4EUD

T3OUT

Toggle FF

U/D

Interrupt

Request

Interrupt

Request

Interrupt

Request

Other

Timers

MCT02141

n = 3 … 10

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