User`s manual

1.2 System Components and Features

1.2.8 Software Support

Software support includes an industry-standard, 1MB ﬂash ROM containing

Windows NT ARC ﬁrmware and debug monitor code. The debug monitor

allows you to:

• Download ﬁles through serial port, I/O diskette, and optional Ethernet

port.

• Load data from the ﬂash ROM through the debug monitor.

• Examine and deposit the AlphaPC64 system register, 21064A internal

processor registers (IPRs), and I/O mapped registers.

• Examine and modify DRAM and I/O mapped memory.

• Disassemble CPU instructions in memory.

• Transfer control to programs in memory.

• Perform native debugging, including breakpoints and single stepping.

• Perform full source-level debugging, using DECladebug running on a host

communicating through an Ethernet connection.

Development code can be generated on a host system and loaded into the

AlphaPC64 through the serial line, optional Ethernet port, diskette, or ﬂash

ROM. Full design database and user documentation are provided.

A serial ROM (SROM) contains the 21064A initialization code. When reset

is deasserted, the contents of the SROM are read into the Icache and are

executed to perform initialization. During initialization, code is loaded from

the ﬂash ROM to memory. Following initialization, control is transferred to the

code in memory.

1.2.9 Component Layout

Figure 1–3 shows the AlphaPC64 board component layout and dimensions.

1.2.10 System Summary

Table 1–2 lists the physical, performance, and operating characteristics of the

AlphaPC64 motherboard.

1–6 AlphaPC64 Introduction