at89c51cc02ua-tdsum ATMEL Corporation, at89c51cc02ua-tdsum Datasheet - Page 79

• Manufacturer Part Number: at89c51cc02ua-tdsum
• Description: At89c51cc02, T89c51cc02 Enhanced 8-bit Microcontroller With Can Controller And Flash
• Manufacturer: ATMEL Corporation

Figure 37. CAN Controller Memory Organization
4126L–CAN–01/08
message object Control & DLC
message object Window SFRs
Enable Interrupt message object
Status Interrupt message object
(message object number) (Data offset)
message object Status
Enable message object
Page message object
General Interrupt
TimStmp High
TimStmp Low
General Control
Enable Interrupt
CANTimer Low
Message Data
CANTimer High
General Status
Timer Control
bit Timing - 1
bit Timing - 2
bit Timing - 3
REC counter
ID Mask - 1
ID Mask - 2
ID Mask - 3
ID Mask - 4
TimTTC High
TimTTC Low
TEC counter
ID Tag - 1
ID Tag - 2
ID Tag - 3
ID Tag - 4
SFRs
8 Bytes
message object 0 - Control & DLC
Ch.0 - Message Data - byte 0
message object 0 - Status
Ch.0 TimStmp High
Ch.0 TimStmp Low
Ch.0 - ID Mask - 4
Ch.0 - ID Mask- 1
Ch.0 - ID Mask- 2
Ch.0 - ID Mask- 3
Ch.0 - ID Tag - 1
Ch.0 - ID Tag - 2
Ch.0 - ID Tag - 3
Ch.0 - ID Tag - 4
On-chip CAN Controller Registers
4 Message Objects
message object 3 - Control & DLC
Ch.3 - Message Data - byte 0
message object 3 - Status
Ch.3 TimStmp High
Ch.3 TimStmp Low
Ch.3 - ID Mask - 1
Ch.3 - ID Mask - 2
Ch.3 - ID Mask - 3
Ch.3 - ID Mask - 4
Ch.3 - ID Tag - 4
Ch.3 - ID Tag - 1
Ch.3 - ID Tag - 2
Ch.3 - ID Tag - 3
AT/T89C51CC02
79