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L9803 Datenblatt(PDF) 37 Page - STMicroelectronics

Teilenummer L9803
Bauteilbeschribung  Super smart power motor driver with 8-Bit MCU, RAM, EEPROM, ADC, WDG, Timers, PWM and H-bridge driver
PDF  126 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9803 Datenblatt(HTML) 37 Page - STMicroelectronics

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L9803
On-Chip Peripherals
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be avoided, since they are likely to present unwanted side-effects such as spurious
interrupt generation.
Figure 17.
Interrupt I/O Port State Transitions
I/O Port Implementation
The I/O port register configurations are resumed as following.
Port PA(7:0), Port PB(2:0)
RESET status: DR=0, DDR=0 and OR=0 (Input mode, no interrupt).
These ports offer interrupt capabilities.
DDR
OR
MODE
00
input
no interrupt (pull-up enabled)
01
input
interrupt (pull-up enabled)
1
0
Open-Drain output
1
1
Push-Pull output
01
floating/pull-up
interrupt
INPUT
00
floating
(reset state)
INPUT
10
open-drain
OUTPUT
11
push-pull
OUTPUT
XX
= DDR, OR



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