Owner's manual
Table Of Contents
- 8-bit MCU with CAN controller and Flash
- 1. Description
- 2. Features
- 3. Block Diagram
- 4. Pin Configuration
- 5. SFR Mapping
- 6. Clock
- 7. Program/Code Memory
- 8. Data Memory
- 9. EEPROM data memory
- 10. In-System-Programming (ISP)
- 11. Serial I/O Port
- 12. Timers/Counters
- 13. Timer 2
- 14. WatchDog Timer
- 15. Atmel CAN Controller
- 15.1. Introduction
- 15.2. CAN Controller Description
- 15.3. CAN Controller Mailbox and Registers Organization
- 15.4. IT CAN management
- 15.5. Bit Timing and BaudRate
- 15.6. Fault Confinement
- 15.7. Acceptance filter
- 15.8. Data and Remote frame
- 15.9. Time Trigger Communication (TTC) and Message Stamping
- 15.10. CAN Autobaud and Listening mode
- 15.11. CAN SFR’s
- 15.12. Registers
- 16. Programmable Counter Array PCA
- 17. Analog-to-Digital Converter (ADC)
- 18. Interrupt System
- 19. Electrical Characteristics
- 20. Ordering Information
86 Rev.A - May 17, 2001
Preliminary
T89C51CC02
CANSIT (S:BBh Read Only)
CAN Status Interrupt message object Registers
Reset Value: xxxx 0000b
Figure 72. CANSIT Register
CANIE (S:C3h)
CAN Enable Interrupt message object Registers
Reset Value: xxxx 0000b
Figure 73. CANIE Register
7 6 5 4 3 2 1 0
----SIT3 SIT2 SIT1 SIT0
Bit Number Bit Mnemonic Description
7-4 -
Reserved
The value read from these bit are indeterminate. Do not set these bits.
3-0 SIT3:0
Status of interrupt by message object
0 - no interrupt.
1 - IT turned on. Reset when interrupt condition is cleared by user.
example: CANSIT = 0b 0000 1001 -> IT’s on message objects3&0.
see Figure 59.
7 6 5 4 3 2 1 0
----IECH 3 IECH 2 IECH 1 IECH 0
Bit Number Bit Mnemonic Description
7-4 -
Reserved
The value read from these bit are indeterminate. Do not set these bits.
3-0 IECH3:0
Enable interrupt by message object
0 - disable IT.
1 - enable IT.
example: CANIE= 0b 0000 1100 -> Enable IT’s of message objects 3 & 0.