Datasheet
Table Of Contents
- List of Sections
- Table of Contents
- General Description
- Central Processing Unit (CPU)
- Pinout and Signal Description
- System Configuration
- Registers
- Operating Modes
- Resource Mapping
- Bus Control and Input/Output
- Resets and Interrupts
- Voltage Regulator (VREG)
- Flash EEPROM 256K
- EEPROM 4K
- Port Integration Module
- Clocks and Reset Generator (CRG)
- Pulse Width Modulator (PWM)
- Enhanced Capture Timer (ECT)
- Serial Communications Interface (SCI)
- Serial Peripheral Interface (SPI)
- Inter-IC Bus (IIC)
- MSCAN
- Analog to Digital Converter
- Byte Data Link Controller Module
- Contents
- Overview
- Features
- Block Diagram
- Register Map
- Functional Description
- Register Descriptions
- External Pin Descriptions
- Reset Initialization/Basic Operation
- Transmitting A Message
- Receiving A Message
- Transmitting An In-Frame Response (IFR)
- Receiving An In-Frame Response (IFR)
- Special BDLC Operations
- Modes of Operation
- Interrupt Operation
- Low Power Options
- Background Debug Module (BDM)
- Breakpoint (BKP) Module
- Revision History
- Glossary
- Literature Updates

Flash EEPROM 256K
MC9S12DP256 — Revision 1.1
Flash EEPROM 256K
BLANK — Blank Verify Flag
Indicates that the flash block is fully erased in response to an Erase-
Verify command. The flag is cleared by writing a “1”. Writing a “0” has
no effect.
1 = Flash block fully erased.
0 = Flash block not fully erased.
BITS[1:0] — These bits are reserved for factory testing and are not
available to the user.
FCMD Ñ Flash
Command Buffer
and Register
Read: Anytime
Write: After aligned write to the flash address space in the command
sequence. (See PVIOL description in FSTAT register)
This register is banked and buffered.
ERASE — Erase flash
Erases a flash sector (512 bytes) or the whole flash depending on the
MASS bit. Trying to erase a sector located in a protected area will
result in a protection violation indicated by the PVIOL bit in the FSTAT
register being set.
1 = Perform a sector erase if MASS=0 or a mass erase if MASS=1.
0 = -
Address Offset: $0006
Bit 7 654321Bit 0
Read: 0
ERASE PROG
00
ERVER
0
MASS
Write:
Reset: 00000000
= Reserved or unimplemented
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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