
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
7654
3210
-
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.
7654
3210
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.