T89C51CC01UA-SLSIM Atmel, T89C51CC01UA-SLSIM Datasheet - Page 19

• Manufacturer Part Number: T89C51CC01UA-SLSIM
• Description: IC 8051 MCU FLASH 32K 44PLCC
• Manufacturer: Atmel
• Series: AT89C CANr

Specifications of T89C51CC01UA-SLSIM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 1.25K 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: 44-PLCC
• For Use With: AT89STK-06 - KIT DEMOBOARD 8051 MCU W/CAN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: T89C51CC01UASLSIM

Erase the Flash
Requests From Host
Answers From
Bootloader
4211C–CAN–03/08
The flow described below allows the user to erase the Flash memory.
Two modes of Flash erasing are possible:
•
•
The Full Chip erase command erases the whole Flash (32 Kbytes) and sets some Configuration
Bytes at their default values:
•
•
•
The full chip erase is always executed whatever the Software Security Byte value is.
Note:
The Block erase command erases only a part of the Flash.
Three Blocks are defined in the T89C51CC01:
•
•
•
As the Program Configuration Information flows, the erase block command has three possible
answers:
•
•
•
Full Chip erase
Block erase
BSB = FFh
SBV = FCh
SSB = FFh (NO_SECURITY)
block0 (From 0000h to 1FFFh)
block1 (From 2000h to 3FFFh)
block2 (From 4000h to 7FFFh)
‘.’ & ‘CR’ & ’LF’ when the data are programmed
‘X’ & ‘CR’ & ‘LF’ if the checksum is wrong
‘P’ & ‘CR’ & ‘LF’ if the Security is set
Erase block2 (16k to 32k)
Erase block1 (8k to 16k)
Erase block0 (0k to 8k)
Command Name
Take care that the full chip erase execution takes few seconds (256 pages )
Full chip erase
Record
type
03h
T89C51CC01 UART Bootloader
Offset
Load
x
Record
length
02h
01h
Data[0]
01h
07h
Data[1]
00h
20h
40h
-
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