mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 1074

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

Chapter 26 4 Kbyte EEPROM Module (S12XEETX4KV2)
26.1.4
A block diagram of the EEPROM module is shown in
26.2
The EEPROM module contains no signals that connect off-chip.
26.3
This section describes the memory map and registers for the EEPROM module.
26.3.1
The EEPROM memory map is shown in
memory addresses between global addresses 0x13_F000 and 0x13_FFFF. The EPROT register, described
in
EEPROM memory from accidental program or erase. The EEPROM addresses covered by this protectable
1074
Section 26.3.2.5, “EEPROM Protection Register
Oscillator
Clock
Command
Request
Interrupt
External Signal Description
Memory Map and Register Definition
Block Diagram
Module Memory Map
EETX4K
Clock
Divider
Command Pipeline
cmd2
addr2
data2
Figure 26-1. EETX4K Block Diagram
MC9S12XDP512 Data Sheet, Rev. 2.17
EEPROM
Interface
Registers
Protection
Figure
EECLK
cmd1
addr1
data1
26-2. The HCS12X architecture places the EEPROM
(EPROT)”, can be set to protect the upper region in the
Figure
26-1.
2K * 16 Bits
EEPROM
sector 1023
sector 0
sector 1
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