AT89C51CC02 Atmel Corporation, AT89C51CC02 Datasheet - Page 12

• Manufacturer Part Number: AT89C51CC02
• Manufacturer: Atmel Corporation

Specifications of AT89C51CC02

• Flash (kbytes): 16 Kbytes
• Max. Operating Frequency: 40 MHz
• Cpu: 8051-12C
• Max I/o Pins: 20
• Uart: 1
• Can: 1
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 62.5
• Sram (kbytes): 0.5
• Eeprom (bytes): 2048
• Self Program Memory: API
• Operating Voltage (vcc): 3.0 to 5.5
• Timers: 4
• Isp: UART/CAN
• Watchdog: Yes

Request from Host
Answers from
Bootloader
ID_SELECT_NODE Flow Description
ID_SELECT_NODE
Example
12
T89C51CC02 CAN Bootloader
COMMAND ABORTED
Time-out 10 ms
Send Select Node Message
with Node Number in Parameter
COMMAND FINISHED
OR
Host
Wait Select Node
Note:
Note:
If the communication is closed then all the others messages won’t be managed by bootloader.
HOST
BOOTLOADER
ID_SELECT_NODE
Num_node is the NNB (Node Number Byte) to which the Host wants to talk to.
Data[0] contains the bootloader version.
Identifier
ID_SELECT_NODE
ID_SELECT_NODE Message
ID_SELECT_NODE Message
ID_SELECT_NODE
ID_SELECT_NODE
Identifier
identifier
Length
2
boot_version
length
Data[0]
01
02
State com = com open
Local Node Number
FF
01 01
data
Node Select =
Length
Data[1]
00h
01h
1
Bootloader
Send Bootloader Version
and State of Communication
State com = com closed
State Com = Com Open
Read Bootloader Version
COMMAND FINISHED
Node Select = FFh
Wait Select Node
Communication close
Communication open
Comment
num_node
Data[0]
4208D–CAN–03/08