Fluke 9000A-Z80QT Instruction Manual page 69

Table 5-4.
ADDRESSABLE DEVICE
RAM
ROM
l/O-Port
Direction
A
-Port
Data
A
-Port
Direction
B
-Port
Data
B
Interval Timer Divide by
-
Interval Timer Disable
Address
line
UUT
Data line latch
UUT
Control line
UUT
Address
line
UUT
Status
line latch
UUT
Table
5-5.
ADDRESS RANGE
ROM
0000 to 1FFF
b. Perform a write
_
high. The write address
Check the
c.
logic high levels.
d.
Repeat step
Repeat step
e.
Check the input operation
6.
follows:
as
Pod
ZBOQT Memory
Register
Register
Register
Register
1
latch
(high byte)
latch
latch
(low byte)
lntertace Pod
ZBOQT
CHECKSUM
to the
operation
is 2080;
A lines (PAO-PA7) with the
port
with
the write data..
b 00 as
checking for
c,
of
I/
and
Addresses
NO
ADDRESS
(HEX)
2000
207F
—
0000
(See Table
1FFF
-
2081
2080
2083
2082
2090
2094
3000
4000
5000
6000
7000
Checksum
Quick ROM
SOFTWARE VERSION
data
port A register to
data
write
FF.
is
probe
logic low
all
levels.
0
A (contained in
port
ZSOQT
5-5)
1.0
all bits
set
or scope for all
and U23)
U21
5-17