C167CS datasheet(250/517 Pages) INFINEON

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C167CS

Derivatives

The General Purpose Timer Units

User’s Manual

10-22

V2.0, 2000-07

10.2

Timer Block GPT2

From a programmer’s point of view, the GPT2 block is represented by a set of SFRs as

summarized below. Those portions of port and direction registers which are used for

alternate functions by the GPT2 block are shaded.

Figure 10-15 SFRs and Port Pins Associated with Timer Block GPT2

Timer block GPT2 supports high precision event control with a maximum resolution of

8 TCL. It includes the two timers T5 and T6, and the 16-bit capture/reload register

CAPREL. Timer T6 is referred to as the core timer, and T5 is referred to as the auxiliary

timer of GPT2.

Each timer has an alternate input function pin associated with it which serves as the gate

control in gated timer mode, or as the count input in counter mode. The count direction

(Up/Down) may be programmed via software. An overflow/underflow of T6 is indicated

by the output toggle bit T6OTL whose state may be output on an alternate function port

pin (T6OUT). In addition, T6 may be reloaded with the contents of CAPREL.

The toggle bit also supports the concatenation of T6 with auxiliary timer T5, while

concatenation of T6 with the timers of the CAPCOM units is provided through a direct

connection. Triggered by an external signal, the contents of T5 can be captured into

or down, and the current timer value can be read or modified by the CPU in the non-

bitaddressable SFRs T5 and T6.

MCA04375

ODP3

DP3

CAPREL

T5CON

T5IC

CRIC

Ports & Direction Control

Alternate Functions

Data Registers

Control Registers

Interrupt Control

ODP3

Port 3 Open Drain Control Register

DP3

Port 3 Direction Control Register

Port 3 Data Register

Port 5 Data Register

P5DIDIS

Port 5 Digital Input Disable Register

T5CONGPT2

Timer 5 Control Register

T6CONGPT2

Timer 6 Control Register

T5 GPT2

Timer 5 Register

T6 GPT2

Timer 6 Register

CAPRELGPT2 Capture/Reload Register

T5ICGPT2

Timer 5 Interrupt Control Register

T6ICGPT2

Timer 6 Interrupt Control Register

CRICGPT2

CAPREL Interrupt Control Register

T6IC

T5IN/P5.13 T5EUD/P5.11

T6IN/P5.12 T6EUD/P5.10

CAPIN/P3.2 T6OUT/P3.1

T6CON

P5DIDIS

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