參數(shù)資料
型號(hào): MB86967PFV
元件分類: 微控制器/微處理器
英文描述: 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP100
封裝: PLASTIC, LQFP-100
文件頁數(shù): 110/129頁
文件大?。?/td> 1519K
代理商: MB86967PFV
81
MB86967
Recalcuate
TBUF
FREE
L
oad
le
ng
th
into
Trans
m
it
B
u
ffer
M
o
ve
pa
cke
td
a
ta
in
to
Tra
n
sm
it
Bu
ffe
r
De
fe
rr
e
m
a
in
de
ro
fp
a
cke
ts
fo
r
pro
c
e
ssing
lat
e
r
TX
Buff
er
Fu
ll
Se
tTBUF
STAT
to
Fu
ll
Short
Packet
Error
Re
po
rt
er
ror
Ca
llor
qu
eu
e
d
ispo
s
itio
n
Lo
ng
Packet
Er
ro
r
Re
po
rt
err
o
r
Call
or
queue
disposition
TX
PKT
WRITE
TX
STARTUP
Set
TX
CNT
=
0
M
a
sk
In
ter
ru
p
ts
Se
tTX
CNT
=
0
M
a
s
k
In
ter
ru
p
ts
Fr
om
F
ig.
14
B
TX
R
equ
es
t
Pending?
TBUF
STAT?
YES
NO
St
an
db
y
Busy,
or
Fu
ll
Empty
LOAD
TX
BUFFER
Set
TPKT
CNT
=
0
Set
TBUF
FREE
=
TBUF
SIZE
Ca
lcula
te/
re
tr
ie
ve
le
ng
th
of
ne
xt
p
a
cket
In
cr
em
en
t
T
X
CNT
Le
ng
th
in
byt
e
s?
<6
0
>
15
14
60
or
15
Will
it
fit
in
bu
ff
e
r?
YE
S
N
O
TX
STAT?
TX
D
O
NE?
Id
le
Busy
YES
NO
TX
Re
qu
es
t
Pending?
YES
TX
CNT
=
TX
MAX?
NO
Set
TBUF
STAT
to
Stan
db
y
YES
TX
CNT
=
TX
?
NO
Set
TBUF
STAT
to
Empty
Singl
e
TBUF
MODE?
Dual
Set
TBUF
STAT
to
Bus
y
Set
TX
STAT
to
Busy
Clear
TX
DON
E
Wr
ite
pa
cket
co
unt
(T
PKT
CNT
)in
to
BM
PR1
0
<6
:0>,
an
d
wr
ite
1
t
o
T
X
ST
ART
TX
STAT?
TX
D
O
NE?
Busy
Id
le
NO
YES
TBUF
STAT?
St
an
dby
or
F
u
ll
Busy,or
Empty
STA
R
T
TRANSMITTER
YES
RX
PKT?
NO
TX
DONE?
YES
To
F
ig.
14
A
TBU
F
STAT?
Full,
or
St
an
db
y
Busy,or
Empty
To
TX
STARTUP
Set
TBUF
STAT
to
Empty
Se
tTX
STAT
t
o
I
d
le
NO
TX
Re
qu
est
Pending?
YES
To
TX
PKT
WRITE
Exit
Enable
In
ter
ru
p
ts
TBUF
STAT?
Empty,
or
St
an
db
y
Full
or
Busy
Figure 12 Transmit Packet Write Routine
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