AT89C51CC01UA-SLSUM Atmel, AT89C51CC01UA-SLSUM Datasheet - Page 41

• Manufacturer Part Number: AT89C51CC01UA-SLSUM
• Description: IC 8051 MCU FLASH 32K 44-PLCC
• Manufacturer: Atmel
• Series: AT89C CANr

Specifications of AT89C51CC01UA-SLSUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 34
• 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
• Package: 44PLCC
• Device Core: 8051
• Family Name: 89C
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 34
• Interface Type: CAN/UART
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• Processor Series: AT89x
• Core: 8051
• Data Ram Size: 1280 B
• Maximum Clock Frequency: 40 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: CANADAPT28
• Minimum Operating Temperature: - 40 C
• Cpu Family: AT89
• Device Core Size: 8b
• Frequency (max): 40MHz
• Total Internal Ram Size: 1.25KB
• # I/os (max): 34
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: PLCC
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AT89C51CC01UASLSUM

Reading the Flash Spaces
User
Extra Row
Hardware Security Byte
4129N–CAN–03/08
Figure 23. Hardware Programming Procedure
The following procedure is used to read the User space:
•
Note:
The following procedure is used to read the Extra Row space and is summarized in
Figure 24:
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•
•
The following procedure is used to read the Hardware
summarized in Figure 24:
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•
•
Read one byte in Accumulator by executing MOVC A,@A+DPTR where A+DPTR is
the address of the code byte to read.
Map the Extra Row space by writing 02h in FCON register.
Read one byte in Accumulator by executing MOVC A,@A+DPTR with A = 0 and
DPTR = FF80h to FFFFh.
Clear FCON to unmap the Extra Row.
Map the Hardware Security space by writing 04h in FCON register.
Read the byte in Accumulator by executing MOVC A,@A+DPTR with A = 0 and
DPTR = 0000h.
Clear FCON to unmap the Hardware Security Byte.
FCON is supposed to be reset when not needed.
Exec: MOVX @DPTR, A
Save and Disable IT
Programming
Flash Spaces
End Loading
FCON = 0Ch
DPTR = 00h
ACC = Data
Data Load
Restore IT
EA = 0
Launch Programming
Security
Save and Disable IT
End Programming
FCON = 54h
FCON = A4h
FCON = 00h
Clear Mode
Cleared?
RestoreIT
FBusy
EA = 0
space and is
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