MC9S12HY64 Datasheet, PDF (615/792 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

17.1.2 Features
64 KByte Flash Module (S12FTMRC64K1V1)
17.1.2.1 P-Flash Features
• 64 Kbytes of P-Flash memory composed of one 64 Kbyte Flash block divided into 128 sectors of
512 bytes
• Single bit fault correction and double bit fault detection within a 32-bit double word during read
operations
• Automated program and erase algorithm with verify and generation of ECC parity bits
• Fast sector erase and phrase program operation
• Ability to read the P-Flash memory while programming a word in the D-Flash memory
• Flexible protection scheme to prevent accidental program or erase of P-Flash memory
17.1.2.2 D-Flash Features
• 4 Kbytes of D-Flash memory composed of one 4 Kbyte Flash block divided into 16 sectors of 256
bytes
• Single bit fault correction and double bit fault detection within a word during read operations
• Automated program and erase algorithm with verify and generation of ECC parity bits
• Fast sector erase and word program operation
• Protection scheme to prevent accidental program or erase of D-Flash memory
• Ability to program up to four words in a burst sequence
17.1.2.3 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
17.1.3 Block Diagram
The block diagram of the Flash module is shown in Figure 17-1.
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
Freescale Semiconductor
615