Read Sharp MX-6240N / MX-7040N (serv.man34) Service Manual online
MX-7040 BLOCK DIAGRAM / ブ ロ ッ ク 図
1 – 9
7. SERIAL COMMUNICATION / シ リ アル通信
TRANS_D
A
T
RSV_D
A
T
I/O
p
or
t
I/O
p
or
t
TxD0
RxD0
CPU
H8S/2373
Schmit
In
v.
nPCU_RxD
nPCU_TxD
nPCU_DSR
nPCU_DTR
SCK_LSU
RxD
TxD
I/O
I/O
CPU
RxD
TxD
I/O
I/O
RxD
TxD
I/O
Schmit
In
v.
Schmit
In
v.
TxD3
RxD3
TxD4
RxD4
TxD_LCC
RxD_LCC
DTR_LCC
DSR_LCC
Schmit
In
v.
Schmit
In
v.
Schmit
In
v.
A[4:0]
D[15:8]
PCU
H8S/3687
(Optional)
Schmit
In
v.
LVDS
Schmit
In
v.
Schmit
In
v.
PIC
PIC16F882
TxD_F
AX(D)-
TxD_F
AX(D)+
RxD_F
A
X(D)+
RxD_F
AX(D)-
TxD_F
AX(CS)-
TxD_F
AX(CS)+
RxD_F
AX(CS)-
RxD_F
AX(CS)+
1st
F
AX
Schmit
In
v.
Schmit
In
v.
CPU
SH7706
PIC
TxD
RxD
PIC16F6
9
0
F
A
X
ASIC
MB87F4
9
30
UA
R
T
B
_
T
X
D
6
UA
R
T
B
_
R
X
D
6
U
A
R
T
B_R
T
S_N6
U
A
R
T
B_CTS_N6
UA
R
T
B
_
T
X
D
7
UA
R
T
B
_
R
X
D
7
U
A
R
T
B_R
T
S_N7
UA
R
T
C
_
T
X
D
UA
R
T
C
_
R
X
D
POR
TC15
U
A
R
T
B_TXD0
U
A
R
T
B_RXD0
U
A
R
T
B_TXD3
U
A
R
T
_RXD3
Schmit
In
v.
Schmit
In
v.
Schmit
In
v.
Schmit
In
v.
Schmit
In
v.
RB_RXD_SCN
RB_TXD_SCN
RB_R
TS_SCN
RB_CTS_SCN
RB_RXD_PCU
RB_TXD_PCU
RB_CTS_PCU
RB_R
TS_PCU
RC_TXD_PIC
RC_RXD_PIC
RC_CLR_PIC
RC_REQ_PIC
RB_TXD_F
AX1D
RB_RXD_F
AX1D
RB_TXD_F
AX1CS
RB_RXD_F
AX1CS
RB_R
TS_F
AX1D
RB_CTS_F
AX1D
RB_R
TS_F
AX1CS
RB_CTS_F
AX1CS
U
A
R
T
B_R
TS0
U
A
R
T
B_CTS0
U
A
R
T
B_R
TS3
U
A
R
T
B_CTS3
LVDS
RB_TXD_F
AX2D
RB_RXD_F
AX2D
RB_TXD_F
AX2CS
RB_RXD_F
AX2CS
U
A
R
T
B_TXD1
U
A
R
T
B_RXD1
U
A
R
T
B_TXD4
U
A
R
T
_RXD4
RB_R
TS_F
AX2D
RB_CTS_F
AX2D
RB_R
TS_F
AX2CS
RB_CTS_F
AX2CS
U
A
R
T
B_R
T
S1
U
A
R
T
B_CTS1
U
A
RT
B
_
RT
S
4
UA
R
T
B
_
C
T
S
4
FA
X
2
Optional
(Same
as
1st
F
AX)
LVDS
Optional
(Same
as
1st
F
AX)
RB_TXD_F
AX3D
RB_RXD_F
AX3D
RB_TXD_F
AX3CS
RB_RXD_F
AX3CS
U
A
R
T
B_TXD2
U
A
R
T
B_RXD2
U
A
R
T
B_TXD5
U
A
R
T
_RXD5
RB_R
TS_F
AX3D
RB_CTS_F
AX3D
RB_R
TS_F
AX3CS
RB_CTS_F
AX3CS
U
A
RT
B
_
RT
S
2
U
A
R
T
B_CTS2
U
A
RT
B
_
RT
S
5
U
A
R
T
B_CTS5
FA
X
3
244
244
244
244
O.
C
.
Schmit
In
v.
O.
C
.
Schmit
In
v.
244
244
P.
U
.
P.
U
.
O.
C
.
Schmit
In
v.
P.
U
.
P.
U
.
P.
U
.
O.
C
.
O.
C
.
O.
C
.
P.
U
.
O.
C
.
P.
U
.
P.
D
.
O.
C
.
P.
D
.
P.
U
.
P.
U
.
P.
D
.
P.
U
.
P.
D
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
Schmit
In
v.
Schmit
In
v.
Schmit
In
v.
Schmit
In
v.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
(P
.
D
.)
P.
U
.
(P
.
D
.)
P.
U
.
(P
.
D
.)
P.
U
.
(P
.
D
.)
(P
.
D
.)
P.
U
.
P.
U
.
(P
.
D
.)
(P
.
D
.)
P.
U
.
P.
U
.
(P
.
D
.)
P.
U
.
P.
U
.
(P
.
D
.)
P.
U
.
P.
U
.
(P
.
D
.)
P.
U
.
P.
U
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
O.
C
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
O.
C
.
O.
C
.
(P
.
D
.)
(P
.
D
.)
(P
.
D
.)
P.
U
.
(P
.
D
.)
P.
U
.
O.
C
.
O.
C
.
RB__CTS_RIC
RB__R
TS_RIC
RB_TXD_RIC
RB_DSR_RIC
RB_RXD_RIC
RB_DTR_RIC
U
A
R
T
_CTS_N10
U
A
R
T
_R
TS_N10
U
A
R
T
B_TXD10
Optional
Coin
V
e
ndor/PCI
P.
U
.
P.
U
.
P.
U
.
P.
U
.
RS232C
Dr
iv
er
RS232C
Dr
iv
er
RB_GPI_CTS_PCI
RB_GPO_R
TS_PCI
RB_TXD_PCI
RB_RXD_PCI
RB_DTR_PCI
RB_DSR_PCI
UA
R
T
B
_
T
X
D
8
Optional
PCISUB
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
P.
U
.
U
A
R
T
B_CTS_N7
P.
U
.
Schmit
In
v.
P.
U
.
P.
U
.
Schmit
In
v.
Schmit
In
v.
Schmit
In
v.
P.
U
.
Schmit
In
v.
Schmit
In
v.
P.
U
.
Schmit
In
v.
Schmit
In
v.
RxD
TxD
SCK
(PD)
Schmit
In
v.
Schmit
In
v.
Schmit
In
v.
P.
U
.
P.
U
.
RxD
TxD
Schmit
In
v.
P.
U
.
P.
U
.
(P
.
D
.)
LSU
ASIC2
(Racoon)
LSU
A
SIC1
LSU
A
SIC3
LSU
ASIC4
(Racoon)
(Racoon)
(Racoon)
LSU
MPFC
REUS
ASIC
TxD2
RxD2
SCK2
FINISHER
(Optional)
CPU
M30843FWGP
DTR_FIN
DSR_FIN
RxD_FIN
TxD_FIN
LCC/LCT
CIScnt
ASIC
TxD_OCA
C
IS
RxD_OCA
CIS
SCK_OCA
C
IS
TxD1
RxD1
SCK1
UPD65
9
46GN-178
PMC
ASIC
2
UPD65
9
46GN-178
PMC
ASIC
1
RxD
TxD
CPU
H8S/2373
Schmit
In
v.
P.
U
.
O.
C
.
(P
.
D
.)
Schmit
In
v.
P.
D
.
O.
C
.
P.
D
.
P.
U
.
TxD_DSPF
RxD_DSPF
Schmit
In
v.
P.
U
.
O.
C
.
(P
.
D
.)
I/O
ASIC
µPD658
9
2GC
A[4:0]
D[15:8]
CPU
H8S/2373
RxD
TxD
Schmit
In
v.
P.
U
.
O.
C
.
(P
.
D
.)
Schmit
In
v.
P.
D
.
O.
C
.
P.
D
.
P.
U
.
I/O
I/O
R
TS_DSPF
CTS_DSPF
DSPFcnt
(f
or
DSPF
model)
SCN-MO
T
HER
MFPC
POR
T
B7
POR
TB8
POR
T
B2
POR
TB3
POR
T
B0
POR
TB1
U
A
R
T
B_RXD10
U
A
R
T
B_RXD8
POR
TC11
(f
or
PR
O
m
odel)
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