Microchip Technology AC244045 Data Sheet
2010-2012 Microchip Technology Inc.
DS41440C-page 277
PIC16(L)F1825/1829
FIGURE 25-28:
I
2
C MASTER MODE WAVEFORM (TRANSMISSION, 7 OR 10-BIT ADDRESS)
SDAx
SCL
x
SSPx
IF
BF (
SSPx
ST
A
T
<0
>)
SEN
A7
A
6
A5
A4
A
3
A
2
A1
A
C
K
=
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
C
le
a
red
by
softw
ar
e se
rvi
ce
ro
uti
ne
SSPx
BUF is
wr
itt
en
b
y s
o
ftwa
re
fr
om S
S
P
x
in
ter
rup
t
A
fte
r
S
tar
t co
ndi
tion,
S
E
N
cl
ear
ed
by h
ar
dw
ar
e
S
SSPx
BUF
wr
itt
e
n wit
h
7
-b
it a
dd
re
ss
a
n
d R/
W
star
t tra
nsm
it
SCL
x h
eld
lo
w
wh
ile
CPU
re
sp
o
nd
s t
o
SSPx
IF
SEN =
0
o
f 10
-b
it A
ddr
ess
W
rit
e SSPx
CO
N2
<0
> SEN =
1
S
tar
t con
di
tio
n b
egi
n
s
F
rom
sl
a
ve,
cl
ear
A
C
K
S
TA
T
bi
t S
S
P
xC
O
N
2<
6
>
ACKST
A
T
in
SSPx
CO
N2
=
1
C
le
ar
ed by
so
ftw
a
re
SS
Px
BUF wr
itt
en
PEN
R/
W
C
le
ar
ed
by
s
of
tw
ar
e