C167CS datasheet(330/517 Pages) INFINEON

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C167CS

Derivatives

The Capture/Compare Units

User’s Manual

16-12

V2.0, 2000-07

Each of the registers CCx may be individually programmed for capture mode or one of

4 different compare modes, and may be allocated individually to one of the two timers of

the respective CAPCOM unit (T0 or T1, and T7 or T8, respectively). A special

combination of compare modes additionally allows the implementation of a ‘double-

CCx registers, it may be used for general purpose variable storage.

The detailed discussion of the capture and compare modes is valid for all the capture/

compare channels, so registers, bits and pins are only referenced by the placeholder ‘x’.

Note: A capture or compare event on channel 31 may be used to trigger a channel

injection on the C167CS’s A/D converter if enabled.

Table 16-5

Selection of Capture Modes and Compare Modes

CCMODx

Selected Operating Mode

0 0 0

Disable Capture and Compare Modes

The respective CAPCOM register may be used for general variable storage.

0 0 1

Capture on Positive Transition (Rising Edge) at Pin CCxIO

0 1 0

Capture on Negative Transition (Falling Edge) at Pin CCxIO

0 1 1

Capture on Positive and Negative Transition (Both Edges) at Pin CCxIO

1 0 0

Compare Mode 0:

Interrupt Only

Several interrupts per timer period; Enables double-register compare mode

for registers CC8 … CC15 and CC24 … CC31.

1 0 1

Compare Mode 1:

Toggle Output Pin on each Match

Several compare events per timer period; This mode is required for double-

1 1 0

Compare Mode 2:

Interrupt Only

Only one interrupt per timer period.

1 1 1

Compare Mode 3:

Set Output Pin on each Match

Reset output pin on each timer overflow; Only one interrupt per timer period.

C167CS Datasheet(PDF) 330 Page - Infineon Technologies AG

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