AT89C51CC03U-RDRIM Atmel, AT89C51CC03U-RDRIM Datasheet - Page 12

• Manufacturer Part Number: AT89C51CC03U-RDRIM
• Description: IC 8051 MCU FLASH 64K 64VQFP
• Manufacturer: Atmel
• Series: AT89C CANr

Specifications of AT89C51CC03U-RDRIM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: AT89C51CC03URDRTR

Request From Host
Answers From
Bootloader
Flow Description
Example
12
AT89C51CC03 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
num_node is the NNB (Node Number Byte) to which the Host wants to talk to.T
data[0] contains the bootloader version.
ID_SELECT_NODE
Identifier
Id_select_node message
Id_select_node message
Id_select_node
Id_select_node
ID_SELECT_NODE
identifier
Identifier
Length
2
length
01
02
boot_version
data[0]
State com = com open
FF
01 01
local node number
data
node select =
Length
data[1]
Bootloader
00h
01h
1
Read Bootloader Version
State com = com closed
Send Bootloader Version
and state of communication
COMMAND FINISHED
state com = com open
Wait Select Node
node select = FFh
Communication close
Communication open
Comment
num_node
data[0]
4251B–CAN–03/08