The XF-DS80C390, XF-DS80C400 and XF-DS80C410 emulator systems are self-contained units that includes the emulation electronics, the probe for the specific 8051 derivative and a mating adapter to plug directly into the target application's footprint - all in only 3.3" (8,5cm) x 3.0" (7,7cm) of space.

Mode Support:

The XF-DS80C390, XF-DS80C400 and XF-DS80C410 in-circuit emulators offer full support of all DS80C390, DS80C400 and DS80C410 modes, including the 24-bit Paged Mode and the 24-bit Contiguous Mode.

Hardware Breakpoints and Other Actions:

Hardware Breaks:

• Break At Instruction Address or Address Range - over the full 16Mb range of program memory
• Break After Write to MOVX Address or Address Range - over the full 4Mb range of external data memory
• Break After Read from MOVX Address or Address Range - over the full 4Mb range of external data memory

Other Hardware Actions:

• Trace ON - over the full 16Mb range of program memory
• Trace OFF - over the full 16Mb range of program memory

Trace Memory:

• Real time collection of bus and instruction activity
• Viewable during emulation (Transparent Trace)
• 32-bit Time Stamp with 1 microsecond resolution
• Trace Memory Size - 512K Frames
• Trace Frame contents:

  • 24-bit Address

  • 8-bit Code/MOVX Data

  • 8-bit Internal SFR Write Data (selected instructions only)

  • 2-bit Status (Instruction Opcode Access, Emulator Base or Target System Access)

• Additional Trace Display contents captured in real time and displayed in an 8 frame cycle:

  • 32-bit Time Stamp

• Trace Trigger Positions - Start, Center, End, Variable

• Trace Collection Control - Trace ON, Trace OFF
• Trace Display Modes - Raw, Code, HLL, Mixed
• Trace Display Operations:

  • Write Display to file

  • Search Display for program addresses or labels

Emulator Memory Capacity and Mapping Controls:

• Emulator Code Memory: 2 Mbytes

• Emulator External Data Memory: 2 Mbytes

• Mapping Resolution:

  • Code Memory: 2 Mbyte

  • External Data Memory: 2 Mbyte

Emulator Memory Operations:

• Source Memory:

  • Single Line Assembler (Full Instruction Set Support)

  • Disassemble in Code, HLL Source or Code/HLL Mixed modes

  • Disassembly can be written to a file

• Memory Windows:

  • Internal Data Memory

  • Code Memory

  • External Data Memory

• Memory Window Operations:

  • Fill a Block of Memory with Data

  • Copy a Block of Memory to another area of Memory

  • Change contents of a single location

  • Compare a Block of Memory to another Block

  • Displayed Data can be written it a file

• Register / SFRs / Bit Memory Windows:

  • Can be viewed or modified

• Program Variables:

  • Can be viewed as defined (int, long, float, structure, etc.)

  • Can change contents

Emulation Controls:

• Start Emulation from an Emulator Reset

• Start Emulation from a Target Reset

• Start Emulation from current Program Counter

• Start Emulation from a new Address

• Run an Emulation until a specified Address

• Single Step by Machine Instruction

• Step by HLL Line Number

• Step Over

• Slow Motion (Automatic Repetitive Step Command)

• Reset Processor