
2001 Microchip Technology Inc.
DS30292C-page 83
PIC16F87X
FIGURE 9-14:
I2C MASTER MODE TIMING (TRANSMISSION, 7 OR 10-BIT ADDRESS)
SD
A
SC
L
S
SPI
F
B
F
(
S
SPST
A
T
<0
>)
SE
N
A7
A
6
A5
A4
A
3
A
2
A1
A
C
K
=
0
D
7D
6
D
5
D
4
D
3
D
2D
1
D
0
ACK
T
ra
n
sm
it
ting
Data
or
S
e
co
nd
Half
R/
W
=
0
T
ran
smi
t
A
d
dr
ess
t
o
S
lave
1
2
3
4
5
6789
12
3
4
5
6
7
8
9
P
Cle
a
re
d
in
so
ft
wa
re
se
rv
ice
ro
u
tin
e
SSPBUF
is
wr
it
te
n
in
s
o
ft
wa
re
Fr
o
m
SSP
in
te
rr
u
p
t
A
fter
S
T
A
R
T
c
ond
it
io
n
S
E
N
,cl
ea
red
by
har
dw
a
re.
S
SSPBUF
wr
it
te
n
wit
h
7
-b
it
a
d
re
s
a
n
d
R/
W
star
ttr
ansm
it
SCL
h
e
ld
lo
w
wh
ile
CPU
re
s
p
o
n
d
s
t
o
SSPI
F
SEN
=
0
o
f10
-b
it
ad
dre
s
W
rit
e
SSPCO
N
2
<
0
>
SEN
=
1
S
T
A
R
T
c
o
n
d
iti
on
be
gi
n
s
Fr
o
m
s
la
v
e
c
le
a
rACKS
T
A
T
b
it
SS
PCO
N
2
<
6
>
ACKST
A
T
in
SSPCO
N
2
=
1
C
lear
ed
i
n
so
ft
w
a
re
SS
PBUF
wr
it
te
n
PE
N
Cle
a
re
d
in
so
ftwa
re
R/W