AT89C51CC03 Atmel Corporation, AT89C51CC03 Datasheet - Page 24

• 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

API Commands
Read/Program Flash
and EEPROM Data
Memory
Read Configuration
and Manufacturer
Information
24
AT89C51CC03 CAN Bootloader
Several types of APIs are available:
•
•
•
•
•
All routines to access EEPROM Data are managed directly from the application without using
bootloader resources.
To read the Flash memory the bootloader is not involved.
For more details on these routines see the AT89C51CC03 Datasheet sections “Program/Code
Memory” and “EEPROM Data Memory”
Two routines are available to program the Flash:
•
•
•
Note:
•
Read/Program Flash and EEPROM Data memory
Read Configuration and Manufacturer Information
Program Configuration Information
Erase Flash
Start bootloader
–
–
The application program load the column latches of the Flash then call the
__api_wr_code_byte or __api_wr_code_page see datasheet in section “Program/Code
Memory
Parameter settings
instruction: LCALL FFC0h.
Parameter settings
__api_wr_code_byte
__api_wr_code_page
No special resources are used by the bootloader during this operation
API Name
__api_wr_code_byte
__api_wr_code_page
API Name
__api_rd_HSB
__api_rd_BSB
__api_rd_SBV
__api_rd_SSB
__api_rd_EB
__api_rd_CANBTC1
__api_rd_CANBTC2
__api_rd_CANBTC3
__api_rd_NNB
__api_rd_CRIS
__api_rd_manufacturer
__api_rd_device_id1
”.
api_command
api_command
0Dh
08h
05h
05h
05h
05h
05h
05h
05h
05h
05h
05h
05h
api_dph
api_dph
-
-
-
-
-
-
-
-
-
-
-
-
-
api_dpl
api_dpl
1Ch
1Dh
1Eh
1Fh
00h
00h
01h
05h
06h
20h
30h
31h
-
return CANBTC1
return CANBTC2
return CANBTC3
manufacturer id
4251B–CAN–03/08
return CRIS
return HSB
return NNB
api_value
api_value
return BSB
return SBV
return SSB
return EB
return id1
return
-