Vax 613 0S Instruction Manual Page 187

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6. Polls the Ethernet subsystem for received packets that require servicing—for
example, loop-back and generation of system identification packet
7. Execute PALcode.
8. Execute MIPS emulator.
The last step concludes the initialization by the hardware and firmware. Control
is now directed to the operating system, which performs its own initialization.
11.2 Bcache Initialization
Bcache initialization is performed by the SROM code. The BTAGS are initialized
by means of I/O space writes (see Section 2.6). The Bcache data RAMs are
loaded to a known state using WRITE_BLOCK commands with the BC_EN and
BC_FHIT bits set in the BIU_CTL IPR.
CPU Power Up and Initialization 11–3
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