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L9805 Datenblatt(PDF) 55 Page - STMicroelectronics

Teilenummer L9805
Bauteilbeschribung  Super Smart Power Motor Driver with 8-BIT MCU, CAN Interface, 16K EPROM, 256Bytes RAM, 128 Bytes EEPROM, 10 Bit ADC, WDG, 2 Timers, 2 PWM Modules, Ful
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
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L9805 Datenblatt(HTML) 55 Page - STMicroelectronics

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L9805
pin is higher than VB/2 PB2 reads an high logic
level.
If the bit PWMI in DCSR register is set (see Sec-
tion 3.2.1), PWMI is directly connected with the In-
put Capture 2 on Timer 2, which is otherwise con-
nected in alternate function to PA7 (see Figure
31).
An internal pull down current generator (5uA) al-
lows to detect the Open Bus condition (external
pull up missing).
If the battery or ground connection are lost, the
PWMI line shows a controlled impedance charac-
teristic (see Figure 30)..
Figure 31. PWMI function
0
1
TIMER 2
ICAP2
PIEN
DCSR
PWM
I/O
M
U
X
PWM INPUT
PA(7) ALTERNATE INPUT
PORT
PWMI
PA7
PA(7)
PB(2)



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