HD64F2636F20 Datasheet, PDF (671/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 16 Controller Area Network (HCAN)
Bit 3—Reset Status Bit (GSR3): Indicates whether the HCAN module is in the normal operating
state or the reset state. Writes are invalid.
Bit 3: MCR3
0
1
Description
Normal operating state
[Setting condition]
• After an HCAN internal reset
Configuration mode
[Reset condition]
• MCR0 reset mode and sleep mode
(Initial value)
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). Writes are invalid.
Bit 2: GSR2
0
1
Description
Message transmission period
[Reset condition]
• Idle period
(Initial value)
Bit 1—Transmit/Receive Warning Flag (GSR1): Flag that indicates an error warning. Writes
are invalid.
Bit 1: GSR1
0
1
Description
[Reset condition]
• When TEC < 96 and REC < 96 or TEC ≥ 256
When TEC ≥ 96 or REC ≥ 96
(Initial value)
Bit 0—Bus Off Flag (GSR0): Flag that indicates the bus off state. Writes are invalid.
Bit 0: GSR0
0
1
Description
[Reset condition]
• Recovery from bus off state
When TEC ≥ 256 (bus off state)
(Initial value)
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 621 of 1458