User`s guide

KA52/53/54 Firmware Commands
3.2 Console Commands
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3.2.8 INITIALIZE
The INITIALIZE command performs a processor initialization.
Format:
INITIALIZE
The following registers are initialized:
Register State at Initialization
PSL 041F0000
IPL 1F
ASTLVL 4
SISR 0
ICCS Bits <6> and <0> clear; the rest are unpredictable.
RXCS 0
TXCS 80
MAPEN 0
Caches Flushed
Instruction buffer Unaffected
Console previous reference Longword, physical, address 0
TODR Unaffected
Main memory Unaffected
General registers Unaffected
Halt code Unaffected
Bootstrap-in-progress flag Unaffected
Internal restart-in-progress flag Unaffected
The firmware clears all error status bits and initializes the following:
• CDAL bus timer
• Address decode and match registers
• Programmable timer interrupt vectors
• The QUART LPR register is set to 9600 baud
• All error status bits are cleared
KA52/53/54 Firmware Commands 3–19