mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 1150

• Manufacturer Part Number: mc9s12xd256
• Description: Hcs12x Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 28 256 Kbyte Flash Module (S12XFTX256K2V1)
28.1.3
Program, erase, erase verify, and data compress operations (please refer to
Command Operations”
28.1.4
A block diagram of the Flash module is shown in
28.2
The Flash module contains no signals that connect off-chip.
1150
•
•
Security feature to prevent unauthorized access to the Flash memory
Code integrity check using built-in data compression
External Signal Description
Oscillator
Clock
Command
Request
Interrupt
Modes of Operation
Block Diagram
for details).
FTX256K2
Clock
Divider
Figure 28-1. FTX256K2 Block Diagram
Command Pipeline
MC9S12XDP512 Data Sheet, Rev. 2.17
cmd2
addr2
data2_0
data2_1
Registers
Protection
Interface
Security
Flash
FCLK
cmd1
addr1
data1_0
data1_1
Figure
28-1.
Flash Block 0
64K * 16 Bits
Flash Block 1
64K * 16 Bits
Section 28.4.1, “Flash
sector 127
sector 127
sector 0
sector 1
sector 0
sector 1
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