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ST6215C bảng dữ liệu(PDF) 47 Page - STMicroelectronics

tên linh kiện ST6215C
Giải thích chi tiết về linh kiện  8-bit MCUs with A/D converter, two timers, oscillator safeguard & safe reset
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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ST6215C bảng dữ liệu(HTML) 47 Page - STMicroelectronics

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9.2 8-BIT TIMER
9.2.1 Introduction
The 8-Bit Timer on-chip peripheral is a free run-
ning downcounter based on an 8-bit downcounter
with a 7-bit programmable prescaler, giving a max-
imum count of 215. The peripheral may be config-
ured in three different operating modes.
9.2.2 Main Features
■ Time-out downcounting mode with up to 15-bit
accuracy
■ External counter clock source (valid also in
STOP mode)
■ Interrupt capability on counter underflow
■ Output signal generation
■ External pulse length measurement
■ Event counter
The timer can be used in WAIT and STOP modes
to wake up the MCU.
Figure 27. Timer Block Diagram
INTERRUPT
TMZ
ETI
TOUT
DOUT
PSI
PS2
PS1
PS0
TSCR
PROGRAMMABLE PRESCALER
PSCR6 PSCR5 PSCR4 PSCR3 PSCR2 PSCR1 PSCR0
PSCR REGISTER
0
70
TCR7
TCR6
TCR5
TCR4
TCR3
TCR2
TCR1
TCR0
TCR
70
8-BIT DOWN COUNTER
TIMER
fPRESCALER
fCOUNTER
fEXT
fINT/12
LATCH
PIN
PSCR7
7
/2
/1
/4
/8
/16
/32
/64
/128
REGISTER
REGISTER
1



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