L9803 STMicroelectronics, L9803 Datasheet - Page 74
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L9803
Manufacturer Part Number
L9803
Description
Super Smart Power Motor Driver With 8-bit Mcu, Ram, Eeprom, Adc, Wdg, Timers, Pwm And H-bridge Driver
Manufacturer
STMicroelectronics
Datasheet
1.L9803.pdf
(126 pages)
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On-Chip Peripherals
5.6
5.6.1
74/126
Controller Area Network (CAN)
Introduction
This peripheral is designed to support serial data exchanges using a multi-master
contention based priority scheme as described in CAN specification Rev. 2.0 part A. It can
also be connected to a 2.0 B network without problems, since extended frames are checked
for correctness and acknowledged accordingly although such frames cannot be transmitted
nor received. The same applies to overload frames which are recognized but never initiated.
Figure 37. CAN Block Diagram
TX
RX
10 Bytes
Buffer 1
TX/RX
BTL
10 Bytes
Buffer 2
TX/RX
BCDL
CAN 2.0B passive Core
EML
10 Bytes
Buffer 3
TX/RX
SHREG
ST7 Internal Bus
ST7 Interface
4 Bytes
Filter 0
CRC
ID
4 Bytes
Filter 1
ID
BRPR
RECR
TECR
PSR
BTR
ICR
ISR
CSR
L9803
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