st92f124 STMicroelectronics, st92f124 Datasheet - Page 330

• Manufacturer Part Number: st92f124
• Description: 8/16-bit Single Voltage Flash Mcu Family With Ram, E3 Tmemulated Eeprom, Can 2.0b And J1850 Blpd
• Manufacturer: STMicroelectronics

CONTROLLER AREA NETWORK (bxCAN)
CONTROLLER AREA NETWORK (Cont’d)
10.10.5.2
Mode
In this mode, the internal counter of the CAN hard-
ware is activated and used to generate the Time
Stamp value stored in the MTSRH and MTSRL
registers. The internal counter is captured on the
sample point of the Start Of Frame bit in both re-
ception and transmission.
10.10.5.3 Reception Handling
For the reception of CAN messages, three
mailboxes organized as a FIFO are provided. In
order to save CPU load, simplify the software and
guarantee data consistency, the FIFO is managed
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Time
Triggered
Communication
completely by hardware. The application accesses
the messages stored in the FIFO through the FIFO
output mailbox.
Valid Message
A received message is considered as valid when it
has been received correctly according to the CAN
protocol (no error until the last but one bit of the
EOF field) and It passed through the identifier fil-
tering successfully, see
er
Filtering.
Section 10.10.5.4 Identifi-