MC9S12XDT256CAA Freescale Semiconductor, MC9S12XDT256CAA Datasheet - Page 744

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

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

Chapter 20 S12X Debug (S12XDBGV3) Module
The trace buffer is visible through a 2-byte window in the register address map and can be read out using
standard 16-bit word reads. Tracing is disabled when the MCU system is secured.
20.1.3
20.1.4
The S12XDBG module can be used in all MCU functional modes.
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Four comparators (A, B, C, and D)
— Comparators A and C compare the full address bus and full 16-bit data bus
— Comparators A and C feature a data bus mask register
— Comparators B and D compare the full address bus only
— Each comparator can be configured to monitor either S12XCPU or XGATE buses
— Each comparator features control of R/W and byte/word access cycles
— Comparisons can be used as triggers for the state sequencer
Three comparator modes
— Simple address/data comparator match mode
— Inside address range mode, Addmin Address Addmax
— Outside address range match mode, Address Addmin or Address Addmax
Two types of triggers
— Tagged — This triggers just before a specific instruction begins execution
— Force — This triggers on the first instruction boundary after a match occurs.
Three types of breakpoints
— S12XCPU breakpoint entering BDM on breakpoint (BDM)
— S12XCPU breakpoint executing SWI on breakpoint (SWI)
— XGATE breakpoint
Three trigger modes independent of comparators
— External instruction tagging (associated with S12XCPU instructions only)
— XGATE S/W breakpoint request
— TRIG Immediate software trigger
Four trace modes
— Normal: change of flow (COF) PC information is stored (see
— Loop1: same as Normal but inhibits consecutive duplicate source address entries
— Detail: address and data for all cycles except free cycles and opcode fetches are stored
— Pure PC: All program counter addresses are stored.
4-stage state sequencer for trace buffer control
— Tracing session trigger linked to Final State of state sequencer
— Begin, End, and Mid alignment of tracing to trigger
flow definition.
Features
Modes of Operation
MC9S12XDP512 Data Sheet, Rev. 2.21
Section
20.4.5.2.1) for change of
Freescale Semiconductor