Philips pm2521 - Initialisation

27
1.4.
1.
1.
Initialisation
In this phase
the jUP
fills the
internal
RAM locations
as
an instruction reference
for
the
}jP.
For
example, if
the AUTO bit is
set,
then the /xP
knows
that AUTO-RANGING
is
selected.
The values of
a measurement or
a
calibration measurement are
also
saved
in these registers.
PROGRAM
MEMORY
CONTENTS (for example)
ADDRESS BIT
POSITION
DECIMAL 7
6
5
4
3
2
1
0
20
IT
OUT CALC ME
AS
SUP ZMON
21
~
°C
V
A
s
Hz Trigger
YFU
level
22
RM2 RM1 RMO YRM
23
24
Mauto Rdown
Rup YRSC
25
M7
M6 M5
M4 M3
M2
Ml
MO YMN
26
27
28 dB
gate Zero
S Lobat
CAL OL YDM
29
2A B7**
*******
**BIN/3vRY
RESU
j^1>*******
***B0
2B
2C
POS
ZMON
YFU
YRM
YRSC
YMN
YDM
=
Monitor
(which routine?)
IT
=
initialisation
OUT
=
display
output routine
CALC
=
calculation routine
MEAS
=
measurement routine
SUP
=
set up
routine
=
Function (which
function?)
=
Range meter (which
range
?)
=
Range
control
status (up^down or auto ranging)
=
Measurement
number
=
Display mode (which
symbol to the display?)