S912XEG128J2VAL
| Model | S912XEG128J2VAL |
| Description | IC,MICROCONTROLLER,16-BIT,CPU12 CPU,CMOS,QFP,112PIN,PLASTIC |
| PDF file | Total 1327 pages (File size: 7M) |
| Chip Manufacturer | ROCHESTER |
Chapter 25 256 KByte Flash Module (S12XFTM256K2V1)
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Fast sector erase and word program operation
Ability to program up to four words in a burst sequence
25.1.2.3
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Emulated EEPROM Features
Up to 4 Kbytes of emulated EEPROM (EEE) accessible as 4 Kbytes of RAM
Flexible protection scheme to prevent accidental program or erase of data
Automatic EEE file handling using an internal Memory Controller
Automatic transfer of valid EEE data from D-Flash memory to buffer RAM on reset
Ability to monitor the number of outstanding EEE related buffer RAM words left to be
programmed into D-Flash memory
Ability to disable EEE operation and allow priority access to the D-Flash memory
Ability to cancel all pending EEE operations and allow priority access to the D-Flash memory
25.1.2.4
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User Buffer RAM Features
Up to 4 Kbytes of RAM for user access
25.1.2.5
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Other Flash Module Features
No external high-voltage power supply required for Flash memory program and erase operations
Interrupt generation on Flash command completion and Flash error detection
Security mechanism to prevent unauthorized access to the Flash memory
25.1.3
Block Diagram
The block diagram of the Flash module is shown in
Figure 25-1.
MC9S12XE-Family Reference Manual , Rev. 1.19
894
Freescale Semiconductor
Because of an order from the United States International Trade Commission, BGA-packaged product lines and part numbers indicated here currently are not
available from Freescale for import or sale in the United States prior to September 2010: S12XE products in 208 MAPBGA packages
