MC9S12XDT512CAA Freescale, MC9S12XDT512CAA Datasheet - Page 1058

• Manufacturer Part Number: MC9S12XDT512CAA
• Manufacturer: Freescale

Specifications of MC9S12XDT512CAA

• Cpu Family: HCS12
• Device Core Size: 16b
• Frequency (max): 40MHz
• Interface Type: CAN/I2C/SCI/SPI
• Total Internal Ram Size: 32KB
• # I/os (max): 59
• Number Of Timers - General Purpose: 12
• Operating Supply Voltage (typ): 2.5/5V
• Operating Supply Voltage (max): 2.75/5.5V
• Operating Supply Voltage (min): 2.35/3.15V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 80
• Package Type: PQFP
• Program Memory Type: Flash
• Program Memory Size: 512KB
• Lead Free Status / RoHS Status: Compliant

Chapter 25 2 Kbyte EEPROM Module (S12XEETX2KV1)
25.4.2.3
The sector erase operation will erase both words in a sector of EEPROM memory using an embedded
algorithm.
An example flow to execute the sector erase operation is shown in
command write sequence is as follows:
If an EEPROM sector to be erased is in a protected area of the EEPROM memory, the PVIOL flag in the
ESTAT register will set and the sector erase command will not launch. Once the sector erase command has
successfully launched, the CCIF flag in the ESTAT register will set after the sector erase operation has
completed unless a new command write sequence has been buffered.
1060
1. Write to an EEPROM memory address to start the command write sequence for the sector erase
2. Write the sector erase command, 0x40, to the ECMD register.
3. Clear the CBEIF flag in the ESTAT register by writing a 1 to CBEIF to launch the sector erase
command. The EEPROM address written determines the sector to be erased while global address
bits [1:0] and the data written are ignored.
command.
Sector Erase Command
MC9S12XDP512 Data Sheet, Rev. 2.21
Figure
25-20. The sector erase
Freescale Semiconductor