AT89C51CC02CA-TDSUM ATMEL [ATMEL Corporation], AT89C51CC02CA-TDSUM Datasheet - Page 99

• Manufacturer Part Number: AT89C51CC02CA-TDSUM
• Description: Enhanced 8-bit Microcontroller with CAN Controller and Flash
• Manufacturer: ATMEL [ATMEL Corporation]

4126J–CAN–05/06
Table 62. CANEN Register
CANEN (S:CFh Read Only)
CAN Enable Message Object Registers
Reset Value = xxxx 0000b
Table 63. CANSIT Register
CANSIT (S:BBh Read Only) – CAN Status Interrupt Message Object Registers
Reset Value = xxxx0000b
Bit Number
Bit Number
7
7
-
-
7 - 4
3 - 0
7 - 4
3 - 0
6
6
-
-
Bit Mnemonic
Bit Mnemonic
ENCH3:0
SIT3:0
-
-
5
5
-
-
Description
Reserved
The values read from these bits are indeterminate. Do not set these
bits.
Enable Message Object
0 - message object is disabled => the message object is free for a
new emission or reception.
1 - message object is enabled.
This bit is resetable by re-writing the CANCONCH of the
corresponding message object.
Description
Reserved
The values read from these bits are indeterminate. Do not set these
bits.
Status of Interrupt by Message Object
0 - no interrupt.
1 - IT turned on. Reset when interrupt condition is cleared by user.
SIT3:0 = 0b 0000 1001 -> IT’s on message objects 3 & 0.
See Figure 39.
4
4
-
-
ENCH3
SIT3
3
3
AT/T89C51CC02
ENCH2
SIT2
2
2
ENCH1
SIT1
1
1
ENCH0
SIT0
0
0
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