Datasheet

111
AT89C51CC03
4182O–CAN–09/08
Table 54. CANEN1 Register
CANEN1 (S:CEh Read Only)
CAN Enable Message Object Registers 1
Reset Value = x000 0000b
Table 55. CANEN2 Register
CANEN2 (S:CFh Read Only)
CAN Enable Message Object Registers 2
Reset Value = 0000 0000b
76543210
- ENCH14 ENCH13 ENCH12 ENCH11 ENCH10 ENCH9 ENCH8
Bit
Number Bit Mnemonic Description
7-
Reserved
The values read from this bit is indeterminate. Do not set this bit.
6-0 ENCH14:8
Enable Message Object
These bits provide the availability of the MOb.
It is set to one when the MOb is enabled.
Once TXOK or RXOK is set to one (TXOK for automatic reply), the
corresponding ENMOB is reset. ENMOB is also set to zero configuring the
MOb in disabled mode, applying abortion or standby mode.
0 - message object disabled: MOb available for a new transmission or
reception.
1 - message object enabled: MOb in use.
This bit is resetable by re-writing the CANCONCH of the corresponding
message object.
76543210
ENCH7 ENCH6 ENCH5 ENCH4 ENCH3 ENCH2 ENCH1 ENCH0
Bit
Number Bit Mnemonic Description
7-0 ENCH7:0
Enable Message Object
These bits provide the availability of the MOb.
It is set to one when the MOb is enabled.
Once TXOK or RXOK is set to one (TXOK for automatic reply), the
corresponding ENMOB is reset. ENMOB is also set to zero configuring the
MOb in disabled mode, applying abortion or standby mode.
0 - message object disabled: MOb available for a new transmission or
reception.
1 - message object enabled: MOb in use.
This bit is resetable by re-writing the CANCONCH of the corresponding
message object.