Rainbow Electronics T89C51CC01 - Manual (Page 91)

91
T89C51CC01
Rev. D – 17-Dec-01
Table 45. CANEN2 Register
CANEN2 (S:CFh Read Only)
CAN Enable message object
Registers 2
Reset Value: 0000 0000b
Table 46. CANSIT1 Register
CANSIT1 (S:BAh)
CAN Status Interrupt message
object Registers 1
Note: 1. This field is Read Only
Reset Value: x000 0000b
7 6 5 4 3 2 1 0
ENCH7 ENCH6 ENCH5 ENCH4 ENCH3 ENCH2 ENCH1 ENCH0
Bit
Number
Bit
Mnemonic Description
7-0 ENCH7:0
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.
7 6 5 4 3 2 1 0
- SIT14 SIT13 SIT12 SIT11 SIT10 SIT9 SIT8
Bit
Number
Bit
Mnemonic Description
7 -
Reserved
The values read from this bit is indeterminate. Do not set this bit.
6-0 SIT14:8
Status of interrupt by message object ( 1 )
0 - no interrupt.
1 - IT turned on. Reset when interrupt condition is cleared by user.
SIT14:8 = 0b 0000 1001 -> IT’s on message objects 11 & 8.
see Figure 33.