h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 569

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Bit 3—Reset Status Bit (GSR3): Indicates whether the HCAN module is in the normal operating
state or the reset state. This bit cannot be written to.
Bit 2—Message Transmission Status Flag (GSR2): Flag that indicates whether the module is
currently in the message transmission period. The “message transmission period” is the period
from the start of message transmission (SOF) until the end of a 3-bit intermission interval after
EOF (End of Frame). This bit cannot be written to.
Bit 1—Transmit/Receive Warning Flag (GSR1): Flag that indicates an error warning. This bit
cannot be written to.
Bit 0—Bus Off Flag (GSR0): Flag that indicates the bus off state. This bit cannot be written to.
Bit 3
GSR3
0
1
Bit 2
GSR2
0
1
Bit 1
GSR1
0
1
Bit 0
GSR0
0
1
Description
Normal operating state
[Setting condition]
After an HCAN internal reset
Configuration mode
[Reset condition]
MCR0 reset mode and sleep mode
Description
Message transmission period
[Reset Condition]
Idle period
Description
[Reset condition]
When TEC < 96 and REC < 96 or TEC ≥ 256
When TEC ≥ 96 or REC ≥ 96
Description
[Reset condition]
Recovery from bus off state
When TEC ≥ 256 (bus off state)
Section 15 Controller Area Network (HCAN)
Rev. 5.00 Sep 22, 2005 page 543 of 1136
REJ09B0257-0500
(Initial value)
(Initial value)
(Initial value)
(Initial value)