8 can bit timing register 1 - canbt1 – Rainbow Electronics ATmega64C1 User Manual
Page 190
190
7647A–AVR–02/08
ATmega32/64/M1/C1
16.10.6
CAN Enable Interrupt MOb Registers - CANIE2 and CANIE1
• Bits 5:0 - IEMOB5:0: Interrupt Enable by MOb
– 0 - interrupt disabled.
– 1 - MOb interrupt enabled
Note:
Example: CANIE2 = 0000 1100
b
: enable of interrupts on MOb 2 & 3.
• Bit 15:6 – Reserved Bits
These bits are reserved for future use. For compatibility with future devices, it must be written to
zero when CANIE1 & CANIE2 are written.
16.10.7
CAN Status Interrupt MOb Registers - CANSIT2 and CANSIT1
• Bits 5:0 - SIT5:0: Status of Interrupt by MOb
– 0 - no interrupt.
– 1- MOb interrupt.
Note:
Example: CANSIT2 = 0010 0001
b
: MOb 0 & 5 interrupts.
• Bit 15:6 – Reserved Bits
These bits are reserved for future use.
16.10.8
CAN Bit Timing Register 1 - CANBT1
• Bit 7– Reserved Bit
This bit is reserved for future use. For compatibility with future devices, it must be written to zero
when CANBT1 is written.
• Bit 6:1 – BRP5:0: Baud Rate Prescaler
Bit
7
6
5
4
3
2
1
0
-
-
IEMOB5
IEMOB4
IEMOB3
IEMOB2
IEMOB1
IEMOB0
CANIE2
-
-
-
-
-
-
-
-
CANIE1
Bit
15
14
13
12
11
10
9
8
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
Read/Write
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
-
-
SIT5
SIT4
SIT3
SIT2
SIT1
SIT0
CANSIT2
-
-
-
-
-
-
-
-
CANSIT1
Bit
15
14
13
12
11
10
9
8
Read/Write
R
R
R
R
R
R
R
R
Initial Value
0
0
0
0
0
0
0
0
Read/Write
R
R
R
R
R
R
R
R
Initial Value
0
0
0
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
-
BRP5
BRP4
BRP3
BRP2
BRP1
BRP0
-
CANBT1
Read/Write
-
R/W
R/W
R/W
R/W
R/W
R/W
-
Initial Value
-
0
0
0
0
0
0
-