e-STUDIO203S/203SD CIRCUIT DIAGRAM 14 - 13
#PB_DATA7
#PB_DATA4
#PB_DATA6 #PB_DATA5
PB_NCS1 (PB_NAE0)
(MDM_IRQ)
(PB_NWE) (PB_NOE)
MCU_D4 MCU_D3 MCU_D2 MCU_D1
MCU_D6
MCU_D7
MCU_D0
MCU_D5
MODEM_IN (/RD)
#MDM_IRQ
MCU_INT
MCU_nCS
(/FAX_RST)
D1 D0
D3 D2
D7
D5
D6
D4
PB_DATA5
PB_DATA7 PB_DATA6
PB_DATA3
PB_DATA0
PB_DATA2 PB_DATA1
#PB_DATA2
PB_DATA4
#PB_DATA1
#PB_DATA3
#PB_DATA0
#PB_ADDR2 #PB_ADDR1 #PB_ADDR0
#PB_ADDR4
PB_ADDR5
PB_ADDR6
#PB_ADDR7
#PB_ADDR5
PB_ADDR1
#PB_ADDR6
#PB_ADDR3
PB_ADDR2
PB_ADDR3
PB_ADDR7
PB_ADDR4
PB_ADDR0
D0
PB_DATA3
D1
PB_DATA0
PB_DATA5
PB_DATA7
D5
(MDM_IRQ)
PB_DATA4
PB_DATA2
MSU_ST1
PB_DATA6
D4 D3 D2
D6
PB_DATA1
D7
MCU_D6
MCU_D4
MCU_D0 MCU_D2
MCU_nCS
#PB_DATA7
#PB_DATA5
#PB_DATA3
#PB_DATA1
#PB_ADDR7
#PB_ADDR5
#PB_ADDR3
#PB_ADDR1
PB_NCS1
(PB_NWE)
(/FAX_RST)
MODEM_IN
MCU_D7
MCU_D5
MCU_D3
MCU_D1
(/RD)
MCU_INT
#PB_DATA6
#PB_DATA4
#PB_DATA2
#PB_DATA0
#PB_ADDR6
#PB_ADDR4
#PB_ADDR2
#PB_ADDR0
(PB_NAE0)
(PB_NOE)
#MDM_IRQ
VCC3
VCC3
VCC3
24V
EN5V
VCC3
PGND
MDM_IRQ
(9)
PB_NCS1
(9)
PB_DATA[7:0]
(9,10)
MSU_ST1
(3)
D[15..0]
(1,2,3,4)
MODEM_IN
(9)
/CS5
(1)
/FAX_RST
(5)
/RES_FAX
(1)
(/RD)
(5)
(PB_NWE)
(5)
(PB_NOE)
(5)
(PB_NAE0)
(5)
PB_ADDR[7:0]
(9,10)
To
Modem
PWB
C323
NM
C329
NM
BR90
33JX4
1
2
3
4
8
7
6
5
CP13
0603SFF150FM/32-2
L16
0J
<1608>
C327 10KJ
R315 10KJ
TP903
CP11
0603SFF150FM/32-2
R311 1KJ
D46
KDS226
2
1
3
C321 10KJ
C328
NM
BR91
33JX4
1
2
3
4
8
7
6
5
BR88
33JX4
1
2
3
4
8
7
6
5
BR92
33JX4
1
2
3
4
8
7
6
5
R317
1KJ
C325
NM
R313 100J
C326 10KJ
TP904
D47
KDS226
2
1
3
BR89
33JX4
1
2
3
4
8
7
6
5
C320 10KJ
BR93
33JX4
1
2
3
4
8
7
6
5
TP725
CP12
0603SFF150FM/32-2
C337
NM
R325 NM
CN5
B40B-PNDZS-1(LF)(SN)
1
3
5
7
9
11
13
15
17
19
21
23
2
4
6
8
10
12
14
16
18
20
22
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
C333 10KJ
C324
NM
C335
NM
C102
0.1U
C334
NM
C330 10KJ
C331
NM
C336
NM
C378
NM
L14
0J
<1608>
R391
100J
C322 10KJ
C332 10KJ
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
MCU
PWB
(Modem
I/F
Connector)
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