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Silicon Laboratories Si2457 Manual de usuario Pagina 16

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Si2493/57/34/15/04
Global ISOmodem-EVB
16 Rev. 0.7
"RS232"
Connectors for ISOModem module.
TXD
GPIO3
RXD
NC
CTS
NC
RESETb
GND
NC
VD
GPIO4
GPIO5
NC
NC
Si2401
GPIO2
GPIO1
TXD/WR
ESC/D3
RXD/RD
SDI/EESD/D2
CTSb/CS
RIb/D1
RESETb
GND
INTb/D0
VD
AOUT/INTb
FSYNCH/D6
RTSb/D7
CLKOUT/EECS/A0
Si24xx
DCDb/D4
SDO/EECLK_RTSb/D5
15
16
13
14
11
12
9
10
7
8
6
1
3
4
5
Net names correspond to Si24xx.
See table for Si2401 equivalents
2
JP1/3
"USB"
RXD
TXD
CTSb
CD
RIb
RTSb
DTRb
"FSYNCHb"
"SDO_EECLK_RTSb"
"SDI_EESD"
DSRb
"SOIC16: 1-2, 5-6, 7-8, 11-12, 14-15"
"TSSOP24: 1-2, 4-5, 7-8, 10-11, 13-14"
"Recommended J6 settings"
"RXD"
"TXD"
"CTSb"
"RESETb"
"RTSb"
"DCDb"
"INT"
"AOUT_INTb"
"RIb"
"ESC"
"CLKOUT_EECSb"
TSSOP24 SOIC16 SOIC16
24xx 24xx 2401
SDI/EESD NC NC
FSYNCH RIb RIb
RIb NC NC
SDO/EECLK RTSb GPIO1
AOUT/INTb INTb INTb/AOUT
TSSOP24
24xx
SOIC16
24xx
SOIC16
2401
DCDDCDDCD
NCNC RIb
ESCESCESC
NCNC
INTbNCNC
RTSb
Silk Screen Text
"GND"
"+3.3V"
JP6 Left Pin Signals JP6 Right Pin Signals
Leaded
Select
High
Chooses
B2 port
To H os t
Interface Page
To AOUT circuit on Call
Progress Page
NC or INTb nc or INTb/AOUT
Table on back
silkscreen for
JP6
RS-232 Si24xx 16 pin Si2401
CD DCD or NC DCD or nc
RI NC or RIb NC or RIb
DTR ESC or NC ESC or NC
RTS NC or RTSb nc or GPIO1
DSR
Si24xx 24 pin
INTb or AOUT/INTb
DCD or SDI/EESD
RI or FSYNCH
ESC or RIb
RTS or SDO/EECLK
LEFT LEFT LEFTRIGHT RIGHT RIGHT
"J6 Jumper Connectiveity"
SILABS
Internal
Use Only
SPI_CSb
SPI mode
CLKOUT_EECSb
FSYNCHb
SDI_EESD
CLKOUT_EECSb
CTSb
RESETb
RXD
DCDb
ESC
RTS_M
CD_M
DTR_M
DSR_M
AOUT_INTb
VCC_Modem
DCDb
RIb
FSYNCHb
RI_M
RTSb
TXD
INTb
SDI_EESD
ESC
SDI_EESD
FSYNCHb
RIb
RIb
SDO_EECLK_RTSb
SDO_EECLK_RTSb
SDI_EESD
ESC
RTSb
DCDb
RIb
INTb
CTSb
INTb
TXD
AO UT_ INTb
RXD
CLKOUT_EECSb
FSYNCHb
RXD
TXD
RESETb
CTSb
RTSb
SELECT
SDO_EECLK_RTSb
SDI_EESD
CD_M
RI_M
DTR_M
RTS_M
DSR_M
SDO_EECLK_RTSb
AO UT_ INTb
FSYNCHb
CLKOUT_EECSb
SDI_EESD
ENABLE_MUXb
FSYNCHb
CLKOUT_EECSb
TXD_T
RTS_T
DTR_T
TXD_U
RTS_U
DTR_U
RXD_T
CTS_T
DSR_T
CD_T
RI_T
RXD_U
CTS_U
DSR_U
CD_U
RI_U
RESETb
AOUT_INTb
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
C98
0.1uF
C98
0.1uF
D44CD D44CD
FB11FB11
R159 681R159 681
J103
8X2 Shrouded Header
J103
8X2 Shrouded Header
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
13
13
15
15
12
12
14
14
16
16
TP7
Turret
GNDTP7
Turret
GND
D48
RED
DSR D48
RED
DSR
TP19TP19
C72 0.1uFC72 0.1uF
D45RI D45RI
R160 681R160 681
JP3 5
EE En.
JP3 5
EE En.
12
C69
1uF
C69
1uF
TP20TP20
TP13
Isense
RED
TP13
Isense
RED
R169 681R169 681
JP2
4X1 Socket
JP2
4X1 Socket
R59
1.0
R59
1.0
D46DTR D46DTR
J6
HEADER 5x3
J6
HEADER 5x3
1
2
3
4
5
6
7
8
9
10
11
13 15
12
14
R170 681R170 681
C70
560pF
C70
560pF
R40
10K
R40
10K
JP3 3
Autobaud Dis. Strap
JP3 3
Autobaud Dis. Strap
12
TP21TP21
JP2 3JP2 3
J101
HEADER 8x2
J101
HEADER 8x2
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
13
13
15
15
12
12
14
14
16
16
D41RXD D41RXD
R43 10KR43 10K
U26
74LCX541
U26
74LCX541
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
G1
1
G2
19
Y1
18
Y2
17
Y3
16
Y4
15
Y5
14
Y6
13
Y7
12
Y8
11
VCC
20
GND
10
C73
560pF
C73
560pF
R101 200R101 200
D54
BAV23A
D54
BAV23A
R39 10K
NOPOP
R39 10K
NOPOP
R48
10K
R48
10K
J5B
RJ-11
J5B
RJ-11
7
8
9
10
11
12
R52 10KR52 10K
TP22TP22
R162681 R162681
TP16TP16
TP12
+3.3V
RED
TP12
+3.3V
RED
D42TXD D42TXD
R155 681R155 681
R163681 R163681
TP5
RING
BLUE
TP5
RING
BLUE
TP8
Turret
GNDTP8
Turret
GND
C71 0.1uFC71 0.1uF
J5A
RJ-11
PSTN LINE
TELEPHONE
J5A
RJ-11
PSTN LINE
TELEPHONE
1
2
3
4
5
6
J7
NOPOP
J7
NOPOP
1
1
2
2
3
3
4
4
5
5
TP23TP23
R156 681R156 681
U13
IDT74CBTLV3257
U13
IDT74CBTLV3257
GND
8
VCC
16
1B1
2
2B1
5
3B1
11
4B1
14
1A
4
2A
7
3A
9
4A
12
1B2
3
2B2
6
3B2
10
4B2
13
OE
15
S
1
TP6
TIP
BLUE
TP6
TIP
BLUE
TP9
Turret
GNDTP9
Turret
GND
U5
EEPROM 32K
U5
EEPROM 32K
/CS
1
MISO
2
MOSI
5
SCLK
6
/WP
3
GND
4
/HOLD
7
VCC
8
D47RTS D47RTS
D43CTS D43CTS
R41 10KR41 10K
R157 681R157 681
D52 RED
USB
D52 RED
USB
U14
IDT74CBTLV3257
U14
IDT74CBTLV3257
GND
8
VCC
16
1B1
2
2B1
5
3B1
11
4B1
14
1A
4
2A
7
3A
9
4A
12
1B2
3
2B2
6
3B2
10
4B2
13
OE
15
S
1
JP3 4
EE Strap
JP3 4
EE Strap
12
C74
1uF
C74
1uF
TP25
Turret
GNDTP25
Turret
GND
TP17TP17
R42 10KR42 10K
TP24TP24
R158 681R158 681
C75 0.1uFC75 0.1uF
D53 RED
RS232
D53 RED
RS232
Figure 10. Motherboard Modem Interface Schematic
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