ST7LITE49K2 datasheet(124/245 Pages) STMICROELECTRONICS

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On-chip peripherals

ST7LITE49K2

124/245

Forced compare output capability

When the FOLVi bit is set by software, the OLVLi bit is copied to the OCMPi pin. The OLVi bit has to be

toggled in order to toggle the OCMPi pin when it is enabled (OCiE bit = 1). The OCFi bit is then not set by

hardware, and thus no interrupt request is generated.

FOLVLi bits have no effect in both one pulse mode and PWM mode.

Figure 62.

Output compare block diagram

Figure 63.

Output compare timing diagram, fTIMER =fCPU/2

Output compare circuit

OC1R register

OC1E

CC0

CC1

OC2E

OLVL1

OLVL2

OCIE

OCF2

OCF1

16-bit

OCMP1

Latch

OC2R register

FOLV2 FOLV1

OCMP2

16-bit free running counter

CR1 (control register 1)

CR2 (control register 2)

SR (status register)

16-bit

Internal CPU clock

Timer clock

Counter register

Output compare register i (OCRi)

Output compare flag i (OCFi)

OCMPi pin (OLVLi = 1)

2ED3

2ED0

2ED1

2ED2

2ED3

2ED4

2ECF

ST7LITE49K2 数据表(PDF) 124 Page - STMicroelectronics

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