RL78/G1P
CHAPTER 9 A/D CONVERTER
R01UH0895EJ0100 Rev.1.00
243
Nov 29, 2019
F
ig
u
re 9-1. Blo
ck Diag
ram
o
f A/D Co
n
verter
E
vent s
ignal
s
el
e
ct
ed by
E
L
C
T
imer tri
gger s
ignal
(I
N
T
T
M
01
)
T
imer tri
gger s
ignal
(I
N
T
IT
)
IN
T
A
D
A
DCS
A
D
M
D
FR
2
FR
1
A
DCE
FR
0
S
a
mpl
e
&
hol
d c
irc
ui
t
VSS
A
/D
v
o
ltag
e c
o
mparator
6
Co
nt
ro
lle
r
C
o
m
par
is
on
vol
tage
gene
rat
or
LV
1
LV
0
6
AD
P
C
0
AD
PC
1
AD
PC
4
AD
PC
2
AD
PC
3
AD
PC7
A
D
P
C
5
AD
PC
6
A/D te
st r
e
giste
r
(A
DT
E
S
)
8
2
AD
S
3
AD
S
4
AD
S
2
AD
S
1
AD
S
0
AD
ISS
Inter
nal
r
e
fer
ence
vo
ltage
(1
.45
V
)
V
DD
V
SS
A
DCS
b
it
A
D
R
E
F
P
1
and A
D
R
E
F
P
0
bi
ts
A
DRE
F
M
b
it
A
/D
p
ort c
onfi
gurati
on regi
st
er
(A
DP
C
)
AV
RE
F
P
/A
N
I0
/P20
Sele
cto
r
S
u
cce
ssive
approx
im
ati
on regi
st
er
(SAR
)
Temperature s
ens
or
Internal
r
eferenc
e v
ol
tage
(1
.45
V
)
A
nal
og i
nput c
han
nel
spec
ifi
cati
on regi
st
er
(A
D
S
)
A
/D
c
onv
erter
mode
regi
st
er
2
(A
D
M2)
A
/D
c
onv
erter
mode
regi
st
er
1
(A
DM
1)
A
/D
c
onv
erter
mode
regi
st
er
0
(A
D
M0
)
A
/D
c
o
nv
ers
ion res
u
lt regi
st
er
(A
DCR
,A
DCRH
)
AV
RE
F
M
/ANI
1/
P
2
1
A
D
R
E
FP
1
A
D
R
E
FP
0
A
DRE
F
P
M
A
DRCK
A
W
C
A
DT
Y
P
AD
T
M
D
1
AD
T
M
D
0
A
DS
CM
A
DT
RS
1
A
DT
RS
0
AD
T
ES
1
AD
T
ES
0
AN
I0
/AV
RE
F
P
/P
2
0
AN
I1
/AV
RE
F
M
/P
2
1
AN
I3
/P
2
3
AN
I2
/P
2
2
AN
I4
/P
2
4
AN
I5
/P
2
5
AN
I7
/P
2
7
AN
I6
/P
2
6
Internal
bus
Internal
bus
Sele
cto
r
Sele
cto
r
PM
C
1
0
Digi
tal por
t c
ontrol
3
8
8
C
onv
ers
ion res
u
lt
co
mpari
son uppe
r l
im
it
se
tti
ng reg
is
ter
(A
D
U
L
)
C
onv
ers
ion res
ul
t
co
m
p
a
riso
n lo
we
r lim
it
setti
ng regi
st
er
(A
D
LL)
A
/D
c
onv
ers
ion res
u
lt
upper l
im
it/l
ow
er l
im
it
co
mparator
P
ort mode c
ontrol
regi
st
er 1 (P
MC
1)
Rema
rk
T
he a
nalo
g in
put pi
n
s in the abov
e
figure
are those
for the 32-pin
prod
ucts.