ST7262xxx
10.2 PWM AUTO-RELOAD TIMER (ART)
10.2.1 Introduction
The Pulse Width Modulated Auto-Reload Timer – Up to two input capture functions
on-chip peripheral consists of an 8-bit auto reload
counter with compare/capture capabilities and of a
7-bit prescaler clock source.
– External event detector
– Up to two external interrupt sources
These resources allow five possible operating
modes:
The three first modes can be used together with a
single counter frequency.
– Generation of up to 2 independent PWM signals The timer can be used to wake up the MCU from
WAIT and HALT modes.
– Output compare and Time base interrupt
Figure 31. PWM Auto-Reload Timer Block Diagram
ct(s) PWMCR
OEx
OPx
te Produ PWMx
PORT
ALTERNATE
FUNCTION
POLARITY
CONTROL
OCRx
REGISTER
LOAD
COMPARE
PWMDCRx
REGISTER
ole ARTARR
bs REGISTER
8-BIT COUNTER
(ARTCAR REGISTER)
LOAD
t(s) - O ARTICx
INPUT CAPTURE
CONTROL
LOAD
ARTICRx
REGISTER
Obsolete Produc ARTCLK
ICSx
ICIEx
ICFx
fEXT
fCPU
MUX
fCOUNTER
ARTICCSR
ICx INTERRUPT
fINPUT
PROGRAMMABLE
PRESCALER
EXCL CC2 CC1 CC0 TCE FCRL OIE OVF ARTCSR
OVF INTERRUPT
Doc ID 6996 Rev 5
43/139