SP3508EB Datasheet, PDF (11/13 Pages) Sipex Corporation – Evaluation Board Manual

Figure 8 shows 3-pin jumper configuration and Table 5 describes the fuctionalities of each
jumper setting configuration.
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Figure 8. 3-Pin Jumper Configuration
TABLE 5. SP3508 LOGIC JUMPER SETTING
Switch
D0
D1
D2
LOOPBACK
TERM_OFF
D_LATCH
SDEN
TTEN
STEN
RSEN
TREN
RRCEN
RLEN
/LLEN
/RDEN
/RTEN
/TXCEN
/CSEN
/DMEN
/RRTEN
/ICEN
TMEN
Jumper
JP22
JP23
JP24
JP25
JP20
JP21
JP41
JP40
JP39
JP38
JP37
JP36
JP35
JP34
JP33
JP32
JP31
JP30
JP29
JP28
JP27
JP26
LOGIC 1
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
VCC (2-3)
LOGIC 2
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
GND (1-2)
DECODER
DECODER
DECODER
Logic 0 indicates SP508 is in LOOPBACK mode
Logic 1 internal termination is disables
Logic 0 Latch is disabled
Logic 1 TXD driver is enabled
Logic 1 TXCE driver is enabled
Logic 1 ST driver is enabled
Logic 1 RTS driver is enabled
Logic 1 DTR driver is enabled
Logic 1 DCD_DCE driver is enabled
Logic 1 SD driver is enabled
Logic 0 LL driver is enabled
Logic 0 RXD receiver is enabled
Logic 0 RXT receiver is enabled
Logic 0 TXC receiver is enabled
Logic 0 CTS receiver is enabled
Logic 0 DSR receiver is enabled
Logic 0 DCD_DTE receiver is enabled
Logic 0 RI receiver is enabled
Logic 1 TM receiver is enabled
JP1 - JP4 are set of jumpers that the user can select which signals to be accessed by DB25.
Figure 9 shows 3-pin jumper configuration and Table 5 describes the signal to be accessed
by DB25 per its configuration.
1
2
3
Figure 9. 3-Pin Jumper Configuration
TABLE 6. SP3508 JUMPER SETTINGS
Signal
to be accessed
by DB25
Jumper
Jumper
Configuration
STa
TxCa
STb
TxCb
RRTa
RRCa
RRTb
RRCb
JP1
1-2
JP1
2-3
JP2
1-2
JP2
2-3
JP3
1-2
JP3
2-3
JP4
1-2
JP4
2-3
Rev. 8/28/03
SP3508 Evaluation Board Manual
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© Copyright 2003 Sipex Corporation