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| 型號(hào)： | ST72254G1M3 |
| 英文描述： | 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY. ADC. 16-BIT TIMERS. SPI. |
| 中文描述： | 8位單電壓閃存微控制器。 ADC的。 16位定時(shí)器。的SPI。 |
| 文件頁(yè)數(shù)： | 85/140頁(yè) |
| 文件大?。?/td> | 1349K |
| 代理商： | ST72254G1M3 |
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ST72104G, ST72215G, ST72216G, ST72254G
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16-BIT TIMER (Cont’d)
Notes:
1. After a processor write cycle to the OC
iHR reg-
ister, the output compare function is inhibited
until the OC
iLR register is also written.
2. If the OC
iE bit is not set, the OCMPi pin is a
general I/O port and the OLVL
i bit will not
appear when a match is found but an interrupt
could be generated if the OCIE bit is set.
3. When the timer clock is fCPU/2, OCFi and
OCMP
i are set while the counter value equals
the OC
iR register value (see Figure 33 on page
53). This behaviour is the same in OPM or
PWM mode.
When the timer clock is fCPU/4, fCPU/8 or in
external clock mode, OCF
i and OCMPi are set
while the counter value equals the OC
iR regis-
ter value plus 1 (see Figure 34 on page 53).
4. The output compare functions can be used both
for generating external events on the OCMP
i
pins even if the input capture mode is also
used.
5. The value in the 16-bit OCiR register and the
OLV
i bit should be changed after each suc-
cessful comparison in order to control an output
waveform or establish a new elapsed timeout.
Forced Compare Output capability
When the FOLV
i bit is set by software, the OLVLi
bit is copied to the OCMP
i pin. The OLVi bit has to
be toggled in order to toggle the OCMP
i pin when
it is enabled (OC
iE bit=1). The OCFi bit is then not
set by hardware, and thus no interrupt request is
generated.
FOLVL
i bits have no effect in either One-Pulse
mode or PWM mode.
Figure 32. Output Compare Block Diagram
OUTPUT COMPARE
16-bit
CIRCUIT
OC1R Register
16 BIT FREE RUNNING
COUNTER
OC1E
CC0
CC1
OC2E
OLVL1
OLVL2
OCIE
(Control Register 1) CR1
(Control Register 2) CR2
0
OCF2
OCF1
(Status Register) SR
16-bit
OCMP1
OCMP2
Latch
1
Latch
2
OC2R Register
Pin
FOLV2 FOLV1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST72254G1M3/XXX | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, IC INTERFACES |
| ST72254G1M5 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY. ADC. 16-BIT TIMERS. SPI. |
| ST72254G1M5/XXX | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, IC INTERFACES |
| ST72254G1M6 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY. ADC. 16-BIT TIMERS. SPI. |
| ST72254G1M6/XXX | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, IC INTERFACES |
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