AT89C51CC03C-RDTIM Atmel, AT89C51CC03C-RDTIM Datasheet - Page 23

• Manufacturer Part Number: AT89C51CC03C-RDTIM
• Description: IC 8051 MCU FLASH 64K 64VQFP
• Manufacturer: Atmel
• Series: AT89C CANr

Specifications of AT89C51CC03C-RDTIM

• 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: AT89C51CC03CRDTIM

Erase Flash
Start Bootloader
4266C–CAN–03/08
The AT89C51CC03 flash memory is divided in several blocks:
Block 0: from address 0000h to 1FFFh
Block 1: from address 2000h to 3FFFh
Block 2: from address 4000h to 7FFFh
These three blocks contain 128 pages.
•
•
Note:
This routine allows to start at the beginning of the bootloader as after a reset. After calling this
routine the regular boot process is performed and the communication must be opened before
any action.
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•
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Parameter settings
instruction: LCALL FFF0h.
No special parameter setting
Set bit ENBOOT in AUXR1 register
instruction: LJUMP or LCALL at address F800h
1. See the AT89C51CC03 datasheet for the time that a write operation takes and this time must
2. No special resources are used by the bootloader during these operations
__api_erase_block0
__api_erase_block1
__api_erase_block2
__api_erase_block3
__api_erase_block4
multiply by the number of pages.
API name
AT89C51CC03 UART Bootloader
R1
01h
DPTR0
C000h
0000h
2000h
4000h
8000h
DPTR1
x
x
x
x
x
Acc
x
x
x
x
x
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