Datasheet

20.11.1. CAN General Control Register
Name: CANGCON
Offset: 0xD8
Reset: 0x0
Property: R/W
Bit 7 6 5 4 3 2 1 0
ABRQ OVRQ TTC SYNTTC LISTEN TEST ENA/STB SWRES
Access
Reset 0 0 0 0 0 0 0 0
Bit 7 – ABRQ: Abort Request
This is not an auto resettable bit.
Value Description
0 No request
1 Abort request: a reset of CANEN1 and CANEN2 registers is done. The pending
communications are immediately disabled and the on-going one will be normally terminated,
setting the appropriate status flags.
Note: The CANCDMOB register remains unchanged
Bit 6 – OVRQ: Overload Frame Request
This is not an auto resettable bit. The overload frame can be traced observing OVFG in CANGSTA
register
Value Description
0 No request
1 Overload frame request: send an overload frame after the next received frame
Bit 5 – TTC: Time Trigger Communication
Value Description
0 No TTC
1 TTC mode
Bit 4 – SYNTTC: Synchronization of TTC
This bit is only used in TTC mode.
Value Description
0 The TTC timer is caught on SOF
1 The TTC timer is caught on the last bit of the EOF
Bit 3 – LISTEN: Listening Mode
Value Description
0 No listening mode
1 Listening mode
Bit 2 – TEST: Test Mode
Note: CAN may malfunction if this bit is set.
Atmel ATmega16M1/32M1/64M1 [DATASHEET]
Atmel-8209F-ATmega16M1/32M1/64M1_Datasheet_Complete-10/2016
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