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THE SINGER COMPANY
KEARFOTT DIVISION
3. COMPUTER START UP
Y240A200M202
_ _ _ _ _ _ _ REV. _ _ _
This section describes the procedures to be followed to start or restart the CCU and SKC2000. It
covers:
•
CCU & SKC2000 power up sequence
•
SKC2000 memory priming
•
Program Loading
with ROM bootstrap loader
with Manual bootstrap loader
3.1 START UP OPTIONS
A wide variety of start up procedures are available with the SKC2000. Among these are:
•
Read Only Memory (ROM) option
The CPU can include a ROM containing a program loader. This loader can be executed starting at
location zero.
3.1.1 Start Up Location Option
The startup location, at power on, is determined by hardware:
•
Location 0 - The ROM memory is available
•
Location 7000 (HEX). This typically indicates that the ROM is not available (if available
it must be entered as described in Section 3.5).
3.1.2 Main Memory Priming.
To condition the main memory at power up, the CPU must be set into RUN mode before entering
or reading memory via the CCU. This is described in succeeding sections.
3-1
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