AT89C51CC03 Atmel Corporation, AT89C51CC03 Datasheet - Page 17

• Manufacturer Part Number: AT89C51CC03
• Manufacturer: Atmel Corporation

Specifications of AT89C51CC03

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 40 MHz
• Cpu: 8051-12C
• Max I/o Pins: 37
• Spi: 1
• Uart: 1
• Can: 1
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 62.5
• Sram (kbytes): 2.25
• Eeprom (bytes): 2048
• Self Program Memory: API
• Operating Voltage (vcc): 3.0 to 5.5
• Timers: 4
• Isp: UART/CAN
• Watchdog: Yes

Example
Programming
Configuration
Information
4251B–CAN–03/08
The flow described below allows the user to program Configuration Information regarding the
bootloader functionality.
This operation can be executed only with a device previously opened in communication.
The Configuration Information can be divided in two groups:
•
•
Note:
T o s t a r t t h e p r o g r a m m i n g o p e r a t i o n , t h e H o s t s e n d s a “ w r i t e ” C A N m e s s a g e
(Id_write_command) with the area selected, the value passed in parameter.
Take care that the Program Fuse bit command programs the 4 Fuse bits at the same time.
Boot Process Configuration:
BSB
SBV
Fuse bits (BLJB and X2 bits) (see Section “Mapping and Default Value of Hardware Security
Byte”)
CAN Protocol Configuration:
BTC_1, BTC_2, BTC_3
SSB
EB
NNB
CRIS
BOOTLOADER
BOOTLOADER
Display Data (from 0000h to 0008h)
Blank Check
BOOTLOADER
HOST
HOST
The CAN protocol configuration bytes are taken into account only after the next reset.
Id_display_data
Id_display_data
Id_display_data
Id_display_data
Id_display_data
identifier
identifier
AT89C51CC03 CAN Bootloader
control
control
05
08
01
05
00
00
55
55
01
// Command ok
00
55
00 00
data
data
00
55
00
55
00
08
55 55 55 55
08
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