Data Returned From Ft-990 - Yaesu FT-990 Operating Manual

CAT System
Cnmputer Con.trol
Data Returned From FT-990
Updt1t·e Data
An
overview of
tlie
data
returned to
the
PC in
response
to
the full
Upd~te
conu:nand (with 1st
parameter
0) is shO'I'\'11 at
the
right. The sequence of
the data
stream
is from top left to
bottom.
· T I1e
first three bytes are
subdivided
into
1-bit
flag fields:· if a. bitls
set
(1), the function is enabled
(on); and
11
reset
(0), the function is di$abled (off).
These
flags
(also retttmed by
the R/ifld Flngs
com-
mand)
reflect
current states
of various
functions,
most
of which
are
indicated
on the
radio display.
flags
Byte
1
BitO: Splitfrequency
operation
Bitl; VFO
B·in use
ror transmit or receive
Bit2: FAST tuning
rate is
activa t-ed
Bit3; CAT System
activa,ted
(after any ctnd)
Bit 4: Antenna tuner
now L uning
BitS: Key Enl<y in progress (digit blinking)
Bit'6:
Current
memory ls empty
Bit 7: Traremissiori. hi progress (PIT dosed)
Flags
'Byte·2
Bit
0:
Memo1y scanning is pnuse.d
Bill: Memory checking (M Cl<)
in
progress
B it
2:
Scanning in progress
Bit
3: Main ttti1ing
knob
locked
Bit4: Memory tuning
(M
TUN£) activated
BitS:
VI'O
ep~r·ation
(=left side of displaY.)
Bit6' MEM operaliori
(=
IHt!>ide o f display)
Bit 7: GEN operation
(e
le.ftside 61 display)
Flags Byl:e
3
Bit 0: PIT
line
dosed
by
CAT command
Bitl: Tx inhibit (e.g., out-of-band)
Bit 2.: 0.5-sec
l:rans'fer
ke.y release timer
active
l3.i
t
3:
5-~c
mem check (M CK) timer ai:ti ve
Bit4: PTTTx inhib'ited during
m emory
scan
BitS: Transmit monitor
Bit6: Antenna T UNER
011
(pa)lel LED) .
'Bit 7: Side tone is
active
(SPOT or CW Tx)
Memory
Chann e l Byte A
Tl,le fourth byte
ot-
Upda te
d~ta
contains a bi-
n<'lry value between
0 and 59h (89. decimal), i ndkat-
ing the current
memory
cl1 annel number on the
dillplay,
m.i111tsl
(0 f6r channcl1, and 89 for channel
90). Only this byte
i~ r~tumed
by
sending the Up-
dnte command with the first parameter set· to 1.
page.42
I
~
ev»
1
I
F19
1!YW
t
I
Flop~
s
I_,_ I
~~~r~~ -ct> ~~
I]
[ .,_1
Current opera.tton-;6-bY\!! status)
I
(Front)
t
Current
operation
(16-!)Yte
Bt!Uus)
I
(Rear)
t
Vfo A
(16-byte
sta!US)
Vfo
B
(~'-' s tatus= ,,..)
_ _ _,
t
I
Memory Channel 1 (1@e
status:JJ
! :
: 88
x
16 Memo!)' Channel Status Bytes ;
· 10r channels
2 -
69 •
I
I
t
t
I
Memory Channel 90 (16-bvte
$tl!)Usl l
16-Byte Structures
TI1e
rest of the Update data consists of 16-byte
record
~tructures
indicating the VFO- and mem-
ory-sp!lcific
selections.
The
(irst of these
rec6ri:ls,i~
for the current
display, followed by
the
two
VFOs,
and then Lhe. 90memory dlannels,
from
lowest
to
hl.ghest..Eac)l byl'e
iti
this
record is idehlifierl
below
by its offset from the start
(base
address) of the
record.
Note
lhat the first record,
for
the curr~l
Format
of
16-byte
Upd.ate
Structures
Offset
Content
&
Format of
Byte
Field
0
BPF
sole<:~on:
0 I0'8olt bina<f (bft
7· 1
onalllanke"(j memory)
1 ~.:3
Byles 1' ' - 3:
~:ejroquency
in
t0 1 s~t Hz(wloda!/rploff·
s@. Bil\3jyvaJ In
ra~e tOWQ ~ 300000<J. BY.)e.
tis MSB:'
4
Clanfle(r'RpiSiaiUS~bii'S6l!o011, (ese~Off)
Bil O:T xdan1ier
er.abled. Bil l :
Rx
!attlier
~na'bled.
'12: . Rpt sftilt eoableiJ.
Bit'~' -Rpl~ift· j inaQI~ airs~- 7:
1191 t$:1
5-·1>,
ClariWEl l \ QfiSQJ.
2'~Cilm@:menl
(sired) value be !Ween
-9!19d (FC19h) and +9
9d
(Q;lE'Ill
]
lvlcde'~bina'Y,
Q.lSB. 1 ·IJS8,
'l!CW:~·A"',
4<FI)I.
5•R lTY, 6oPKT
8
J F filler:
bj~~ 0•2.41<. 1~0K,
2•500, 3.: 2 59; M .K(AM)
(liit7~1
[orF
P~ll!'Revecie
RITYJ
i9 Lasl sel , e c1ectSSB filler
(~ee-~le
8 formal}
10"
lasl S<llecledCW fiiJer (soo.l;!yle
· s
loWtal)
11
Last~~creo
l'ITIY filter !s' e e
e~ aroi' i naU
12"
Lasi sefecled
RKT
filler (see
B)lle•' B iormat)
1Jc
l.ast..stale of
ClarirlfliiRpt
ut FM mode (soo
Byte4d~rmal )
14
Bit
Ojs,s~l
l( thls J ta!liemoi)o i6
~e sklp~dJrio~
S®Jnlllg,
Bit
7
is
setlf
A M
1!10de
last~~ed
{a;;s uslng} 1M
.4K~IIef.
[$
'J)lis:by!e
~·ei1fler
0: qrOFflt it
th~rrevt AMorH~
frequer.oy,
. is no1 ailinl!l!ler
r))U[Uple
' o f1QO Hi