MC9S12XDT256CAA Freescale Semiconductor, MC9S12XDT256CAA Datasheet - Page 1191

IC MCU 256K FLASH 80-QFP

MC9S12XDT256CAA

Manufacturer Part Number
MC9S12XDT256CAA
Description
IC MCU 256K FLASH 80-QFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet

Specifications of MC9S12XDT256CAA

Core Processor
HCS12X
Core Size
16-Bit
Speed
80MHz
Connectivity
CAN, EBI/EMI, I²C, IrDA, LIN, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
59
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
80-QFP
Processor Series
S12XD
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
16 KB
Interface Type
CAN/I2C/SCI/SPI
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
59
Number Of Timers
12
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
EVB9S12XDP512E
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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29.3
This section describes the memory map and registers for the Flash module.
29.3.1
The Flash memory map is shown in
addresses between global addresses 0x7E_0000 and 0x7F_FFFF. The FPROT register, described in
Section 29.3.2.5, “Flash Protection Register
from accidental program or erase. Three separate memory regions, one growing upward from global
address 0x7F_8000 in the Flash memory (called the lower region), one growing downward from global
address 0x7F_FFFF in the Flash memory (called the higher region), and the remaining addresses in the
Flash memory, can be activated for protection. The Flash memory addresses covered by these protectable
regions are shown in the Flash memory map. The higher address region is mainly targeted to hold the boot
loader code since it covers the vector space. The lower address region can be used for EEPROM emulation
in an MCU without an EEPROM module since it can be left unprotected while the remaining addresses
are protected from program or erase. Default protection settings as well as security information that allows
the MCU to restrict access to the Flash module are stored in the Flash configuration field as described in
Table
Freescale Semiconductor
0x7F_FF08 – 0x7F_FF0C
0x7F_FF00 – 0x7F_FF07
29-1.
Global Address
0x7F_FF0D
0x7F_FF0E
0x7F_FF0F
Memory Map and Register Definition
Module Memory Map
(Bytes)
Size
8
5
1
1
1
Table 29-1. Flash Configuration Field
MC9S12XDP512 Data Sheet, Rev. 2.21
Figure
Backdoor Comparison Key
Refer to
Reserved
Flash Protection byte
Refer to
Flash Nonvolatile byte
Refer to
Flash Security byte
Refer to
29-2. The HCS12X architecture places the Flash memory
(FPROT)”, can be set to protect regions in the Flash memory
Section 29.6.1, “Unsecuring the MCU using Backdoor Key Access”
Section 29.3.2.5, “Flash Protection Register (FPROT)”
Section 29.3.2.8, “Flash Control Register (FCTL)”
Section 29.3.2.2, “Flash Security Register (FSEC)”
Chapter 29 128 Kbyte Flash Module (S12XFTX128K1V1)
Description
1193

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