Hitachi H8S/2646 Hardware Manual page 911

GSR—General Status Register
Bit 7
—
Initial value 0
Read/Write —
6 5
— —
0 0
— —
Transmit/Receive Warning Flag
Message Transmission Status Flag
0 Message transmission period
1 [Reset condition]
Idle period
Reset Status Bit
0 Normal operating state
[Setting condition]
After an HCAN internal reset
1 Configuration mode
[Reset condition]
MCR0 reset mode and sleep mode
H'F801
4 3 2
— GSR3 GSR2
0 1 1
— R R
Bus Off Flag
0 [Reset condition]
Recovery from bus off state
1 When TEC ≥ 256 (bus off state)
0 [Reset condition]
When TEC < 96 and REC < 96 or TEC ≥ 256
1 When TEC ≥ 96 or REC ≥ 96
HCAN
1 0
GSR1 GSR0
0 0
R R
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