MC9S12XDT512MAA Freescale, MC9S12XDT512MAA Datasheet - Page 1064
MC9S12XDT512MAA
Manufacturer Part Number
MC9S12XDT512MAA
Description
Manufacturer
Freescale
Datasheet
1.MC9S12XDT512MAA.pdf
(1348 pages)
Specifications of MC9S12XDT512MAA
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 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
80
Package Type
PQFP
Program Memory Type
Flash
Program Memory Size
512KB
Lead Free Status / RoHS Status
Compliant
Available stocks
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Manufacturer
Quantity
Price
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Part Number:
MC9S12XDT512MAA
Manufacturer:
Freescale Semiconductor
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Chapter 25 2 Kbyte EEPROM Module (S12XEETX2KV1)
25.4.2.6
The sector modify operation will erase both words in a sector of EEPROM memory followed by a
reprogram of the addressed word using an embedded algorithm.
An example flow to execute the sector modify operation is shown in
command write sequence is as follows:
If an EEPROM sector to be modified is in a protected area of the EEPROM memory, the PVIOL flag in
the ESTAT register will set and the sector modify command will not launch. Once the sector modify
command has successfully launched, the CCIF flag in the ESTAT register will set after the sector modify
operation has completed unless a new command write sequence has been buffered.
1066
1. Write to an EEPROM memory address to start the command write sequence for the sector modify
2. Write the sector modify command, 0x60, 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 and word to be
reprogrammed while byte address bit 0 is ignored.
command.
Sector Modify Command
MC9S12XDP512 Data Sheet, Rev. 2.21
Figure
25-23. The sector modify
Freescale Semiconductor
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