C167CS datasheet(337/517 Pages) INFINEON

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C167CS

Derivatives

The Capture/Compare Units

User’s Manual

16-19

V2.0, 2000-07

Double-Register Compare Mode

In double-register compare mode two compare registers work together to control one

output pin. This mode is selected by a special combination of modes for these two

registers.

For double-register mode the 16 capture/compare registers of each CAPCOM unit are

regarded as two banks of 8 registers each. Registers CC0 … CC7 and CC16 … CC23

form bank 1 while registers CC8 … CC15 and CC24 … CC31 form bank 2 (respectively).

For double-register mode a bank 1 register and a bank 2 register form a register pair.

Both registers of this register pair operate on the pin associated with the bank 1 register

(pins CC0IO … CC7IO and CC16IO … CC23IO).

The relationship between the bank 1 and bank 2 register of a pair and the effected output

pins for double-register compare mode is listed in Table 16-6.

The double-register compare mode can be programmed individually for each register

pair. In order to enable double-register mode the respective bank 1 register (see

Table 16-6) must be programmed to compare mode 1 and the corresponding bank 2

If the respective bank 1 compare register is disabled or programmed for a mode other

than mode 1 the corresponding bank 2 register will operate in compare mode 0

(interrupt-only mode).

In the following, a bank 2 register (programmed to compare mode 0) will be referred to

as CCz while the corresponding bank 1 register (programmed to compare mode 1) will

be referred to as CCx.

Table 16-6

CAPCOM1 Unit

CAPCOM2 Unit

Associated

Output Pin

Associated

Output Pin

Bank 1

Bank 2

Bank 1

Bank 2

CC0

CC8

CC0IO

CC16

CC24

CC16IO

CC1

CC9

CC1IO

CC17

CC25

CC17IO

CC2

CC10

CC2IO

CC18

CC26

CC18IO

CC3

CC11

CC3IO

CC19

CC27

CC19IO

CC4

CC12

CC4IO

CC20

CC28

CC20IO

CC5

CC13

CC5IO

CC21

CC29

CC21IO

CC6

CC14

CC6IO

CC22

CC30

CC22IO

CC7

CC15

CC7IO

CC23

CC31

CC23IO

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