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ST72411R データシート(PDF) 34 Page - STMicroelectronics

部品番号 ST72411R
部品情報  8-BIT MCU WITH SMARTCARD INTERFACE, LCD DRIVER, 8-BIT TIMER, SAFE RESET AND SUPPLY MONITORING
PDF  71 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72411R データシート(HTML) 34 Page - STMicroelectronics

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5.3 8-BIT TIMER (TIM8)
5.3.1 Introduction
The 8-Bit Timer on-chip peripheral (TIM8) is a free
running downcounter based on an 8-bit down-
counter with a 9-bit programmable prescaler.
5.3.2 Main Features
s
Timeout downcounting mode with up to 16-bit
accuracy
s
External counter clock source (valid also in
HALT mode)
s
Interrupt capability on counter underflow
s
Output signal generation
s
External pulse length measurement
s
Time base interrupt
The timer can be used in WAIT and HALT modes
and to wake up the MCU.
Figure 24. Timer Block Diagram
fTIMER/8
fTIMER/64
fTIMER/512
UDF INTERR UPT
OEN
TOUT
DOUT
UDF
ETI
PSE
PS1
PS0
TSCR
PROGRAMMABLE PRES CALER
PSCR7 PSCR6 PSCR5 PSCR4 PSCR3 PSCR2 PSCR1 PSCR0
PSCR
0
PSCR8
85
2
70
TCR7
TCR6
TCR5
TCR4
TCR3
TCR2
TCR1
TCR0
TCR
70
UNDERFL OW
8-BIT COUNTER
ALTERNATE
FUNCTION
TIMIO
fTIMER
fTIMER
fCOUNTER
fEXT
DIV16
DIV2
fCPU
fOSC
LATCH



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