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ST7L19 데이터시트(PDF) 75 Page - STMicroelectronics

부품명 ST7L19
상세설명  8-bit MCU for automotive with single voltage Flash/ROM memory, data EEPROM, ADC, 5 timers, SPI
PDF  138 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7L19 데이터시트(HTML) 75 Page - STMicroelectronics

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LITE TIMER (cont’d)
Bit 6 = ICF Input Capture Flag
This bit is set by hardware and cleared by software
by reading the LTICR register. Writing to this bit
does not change the bit value.
0: No input capture
1: An input capture has occurred
Note: After an MCU reset, software must initialize
the ICF bit by reading the LTICR register
Bit 5 = TB Timebase period selection
This bit is set and cleared by software.
0: Timebase period = tOSC * 8000 (1ms @ 8 MHz)
1: Timebase period = tOSC * 16000 (2ms @ 8
MHz)
Bit 4 = TB1IE Timebase Interrupt enable
This bit is set and cleared by software.
0: Timebase (TB1) interrupt disabled
1: Timebase (TB1) interrupt enabled
Bit 3 = TB1F Timebase Interrupt Flag
This bit is set by hardware and cleared by software
reading the LTCSR register. Writing to this bit has
no effect.
0: No counter overflow
1: A counter overflow has occurred
Bits 2:0 = Reserved
LITE
TIMER
INPUT
CAPTURE
REGISTER
(LTICR)
Read only
Reset Value: 0000 0000 (00h)
Bits 7:0 = ICR[7:0] Input Capture Value
These bits are read by software and cleared by
hardware after a reset. If the ICF bit in the LTCSR
is cleared, the value of the 8-bit up-counter will be
captured when a rising or falling edge occurs on
the LTIC pin.
Table 15. Lite Timer Register Map and Reset Values
70
ICR7
ICR6
ICR5
ICR4
ICR3
ICR2
ICR1
ICR0
Address
(Hex.)
Register
Label
765
4321
0
08
LTCSR2
Reset Value
000
000
TB2IE
0
TB2F
0
09
LTARR
Reset Value
AR7
0
AR6
0
AR5
0
AR4
0
AR3
0
AR2
0
AR1
0
AR0
0
0A
LTCNTR
Reset Value
CNT7
0
CNT6
0
CNT5
0
CNT4
0
CNT3
0
CNT2
0
CNT1
0
CNT0
0
0B
LTCSR1
Reset Value
ICIE
0
ICF
x
TB
0
TB1IE
0
TB1F
0
00
0
0C
LTICR
Reset Value
ICR7
0
ICR6
0
ICR5
0
ICR4
0
ICR3
0
ICR2
0
ICR1
0
ICR0
0
1



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