MC9S12XD256VAG Freescale Semiconductor, MC9S12XD256VAG Datasheet - Page 688

• Manufacturer Part Number: MC9S12XD256VAG
• Description: IC MCU 256K FLASH 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12XD256VAG

• 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: 119
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 14K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.5 V
• Data Converters: A/D 24x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 18 Memory Mapping Control (S12XMMCV3)
18.5.3.4
In emulation expanded mode the external bus will be connected to the emulator and to the application. If
the ROMON bit is set, the internal FLASH provides the data. If the EROMON bit is set as well the
emulator observes all CPU internal actions, otherwise the emulator provides the data and traces all CPU
actions (see
and the emulator will observe the CPU internal actions (see
688
Figure
ROM Control in Emulation Expanded Mode
18-30). When the ROMON bit is cleared, the application memory provides the data
MCU
MCU
Figure 18-30. ROMON = 1 in Emulation Expanded Mode
Flash
MC9S12XDP512 Data Sheet, Rev. 2.21
Emulator
Application
Emulator
Application
Figure
EROMON = 0
EROMON = 1
Memory
Memory
Flash
18-31).
Observer
Generator
Freescale Semiconductor