MC9S12XD256MAL Datasheet, PDF (1190/1348 Pages) Freescale Semiconductor, Inc – Freescale’s Scalable Controller Area Network

Chapter 29 128 Kbyte Flash Module (S12XFTX128K1V1)
• Security feature to prevent unauthorized access to the Flash memory
• Code integrity check using built-in data compression
29.1.3 Modes of Operation
Program, erase, erase verify, and data compress operations (please refer to Section 29.4.1, “Flash
Command Operations” for details).
29.1.4 Block Diagram
A block diagram of the Flash module is shown in Figure 29-1.
FTX128K1
Command
Interrupt
Request
Flash
Interface
Command Pipeline
cmd2
addr2
data2
cmd1
addr1
data1
Registers
Flash Block
64K * 16 Bits
sector 0
sector 1
Oscillator
Clock
Protection
Security
Clock
Divider _FCLK
sector 127
Figure 29-1. FTX128K1 Block Diagram
29.2 External Signal Description
The Flash module contains no signals that connect off-chip.
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MC9S12XDP512 Data Sheet, Rev. 2.21
Freescale Semiconductor