Renesas H8S Series Hardware Manual page 426

Section 15 Controller Area Network (HCAN)
Bit Bit Name Initial Value
2 GSR2 1
1 GSR1 0
0 GSR0 0
Rev. 6.00 Mar 15, 2006 page 390 of 570
REJ09B0211-0600
R/W Description
R Message Transmission Status Flag
Flag that indicates whether the module is currently in
the message transmission period. This bit cannot be
modified.
[Setting condition]
•
Third intermission bit after EOF (End of Frame)
[Clearing condition]
•
Start of message transmission (SOF)
R Transmit/Receive Warning Flag
This bit cannot be modified.
[Clearing conditions]
•
When TEC < 96 and REC < 96
• When TEC ≥ 256
[Setting condition]
• When TEC ≥ 96 or REC ≥ 96
R Bus Off Flag
This bit cannot be modified.
[Setting condition]
• When TEC ≥ 256 (bus off state)
[Clearing condition]
•
Recovery from bus off state