5
3-3
T
ransmission Control Matrix (Read
er
T
y
pe)
Event
TCP
S
tatus
STX received
ETX received
Other receptions
AC
K re
ceived
NAK re
ceived
No respon
se
1 Idling
2
Rea
d/disca
rd
ed 1
R
ea
d/disca
rd
ed 1
Rea
d/disca
rd
ed 1
R
ea
d/disca
rd
ed 1
1
2 Comm
and
rcvd.
Buf
fering 2
Buf
fering 3
If dat
a erro
r
DLE sent 1
If dat
a erro
r
buf
ferin
g 2
If dat
a erro
r
DLE sent 1
If dat
a erro
r
buf
ferin
g 2
If dat
a erro
r
DLE sent 1
If dat
a normal
buf
ferin
g 2
2
3 BCC received
If BCC matched 4
If BCC doe
s not
match
NAK sent
1
If BCC matched 4
If BCC doe
s not
match
NAK sent
1
If BCC matched 4
If BCC doe
s not
match
NAK sent
1
If BCC matched 4
If BCC doe
s not
match
NAK sent
1
If BCC matched 4
If BCC doe
s not
match
NAK sent
1
3
4 W
a
it for ACK af
ter
re
s
p
onse s
ent
Rea
d/disca
rd
ed 4
R
ea
d/disca
rd
ed 4
R
ea
d/disca
rd
ed 4
1
Re
spo
nse re
sen
d
4
4
Whe
n a p
rio
ri
ty comman
d, su
ch a
s
Re
set comm
and
or Card re
mo
val
wait st
atu
s can
cel
com
mand, is
se
nt while
anoth
e
r co
mman
d is bei
ng executed,
that command is canceled,
and a pri
ority command response is returned.