ST72325S6 STMicroelectronics, ST72325S6 Datasheet - Page 80
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ST72325S6
Manufacturer Part Number
ST72325S6
Description
8-bit MCU
Manufacturer
STMicroelectronics
Datasheet
1.ST72325K4.pdf
(197 pages)
Specifications of ST72325S6
Hdflash Endurance
100 cycles, data retention
Clock Sources
crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
Four Power Saving Modes
Halt, Active-Halt,Wait and Slow
Main Clock Controller With
Real time base, Beep and Clock-out capabilities
Two 16-bit Timers With
2 input captures, 2 output compares, external clock input on one timer, PWM and pulse generator modes
8-bit Pwm Auto-reload Timer With
2 input captures, 4 PWM outputs, output compare and time base interrupt, external clock with event detector
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ST72325xx
16-BIT TIMER (Cont’d)
Notes:
1. After a processor write cycle to the OCiHR reg-
2. If the OCiE bit is not set, the OCMPi pin is a
3. In both internal and external clock modes,
4. The output compare functions can be used both
5. The value in the 16-bit OC
Figure 51. Output Compare Block Diagram
80/197
16-bit
ister, the output compare function is inhibited
until the OCiLR register is also written.
general I/O port and the OLVLi bit will not
appear when a match is found but an interrupt
could be generated if the OCIE bit is set.
OCFi and OCMPi are set while the counter
value equals the OCiR register value (see
ure 8
for an example with f
the same in OPM or PWM mode.
for generating external events on the OCMPi
pins even if the input capture mode is also
used.
OLVi bit should be changed after each suc-
cessful comparison in order to control an output
waveform or establish a new elapsed timeout.
16 BIT FREE RUNNING
OC1R Register
OUTPUT COMPARE
16-bit
for an example with f
CIRCUIT
OC2R Register
COUNTER
16-bit
CPU
/4). This behavior is
CPU
i
R register and the
/2 and
OC1E
OCIE
OC2E
OCF1
Figure 9
Fig-
FOLV2 FOLV1
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.
The FOLVLi bits have no effect in both One Pulse
mode and PWM mode.
(Control Register 2) CR2
(Control Register 1) CR1
OCF2
CC1
(Status Register) SR
OLVL2
CC0
0
0
OLVL1
0
Latch
Latch
1
2
OCMP1
OCMP2
Pin
Pin
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