Microchip Technology ARD00330 データシート
PIC18F87J72 FAMILY
DS39979A-page 230
Preliminary
2010 Microchip Technology Inc.
FIGURE 18-23:
I
2
C™ MASTER MODE WAVEFORM (TRANSMISSION, 7 OR 10-BIT ADDRESSING)
SDA
SCL
SSPI
F
BF (
SSPST
A
T
<0
>)
SEN
A
7
A6
A5
A4
A3
A2
A1
ACK
=
0
D7
D6
D5
D4
D3
D2
D1
D0
ACK
T
ran
smi
tti
ng
D
at
a
or
S
eco
nd
H
al
f
R/W
=
0
T
ran
smi
t
A
d
dr
ess t
o S
lave
1
2
3
4
56
7
8
9
1
2
3
4
5
67
8
9
P
Cle
a
re
d
in
so
ftwa
re
se
rv
ice
r
ou
tin
e
SSPBUF
is
wr
itt
en
in
s
o
ftwa
re
fr
om
M
SSP
in
te
rr
up
t
A
fte
r
S
tar
t co
nd
iti
on,
S
E
N
cl
ear
ed
by h
ar
dw
ar
e
S
SSPBUF
wr
itt
e
n wit
h
7
-b
it a
dd
re
ss
a
nd
R/
W
star
t tra
nsm
it
SCL
h
eld
lo
w
wh
ile
CPU
re
sp
o
nd
s t
o
SSPI
F
SEN =
0
o
f 10
-b
it A
ddr
ess
W
rit
e SSPCO
N
2
<
0>
(
S
E
N
=
1
),
S
tar
t con
di
tio
n b
egi
n
s
Fr
om
s
la
ve
,
cl
ea
r ACKST
A
T
b
it (
SSPCO
N
2
<
6>
)
ACKST
A
T
in
SSPCO
N
2
=
1
Cl
e
ar
ed
in
so
ftwa
re
SS
PBUF wr
itt
en
PEN
R/
W
Cle
a
re
d in
so
ftwa
re