Option Switch Settings - ST STR730-EVAL User Manual

UM0559
Table 3.
Jumper
J2
J3
J5
J6
J7
Jumpers are fitted as shown in
Figure 5.
2.13

Option switch settings

Table 4.
Switch Schematic
SW1
SW2
SW3
SW4
SW5
SW6
SW7
Option jumpers
Schematic
Figure 17 on page 26
Figure 11 on page 20
Figure 10 on page 19
Figure 10 on page 19
Figure 10 on page 19
Jumper positions
Not fitted Do not fit
Option switch settings
Figure 17 on page 26
Figure 17 on page 26
Figure 13 on page 22
Figure 13 on page 22
Figure 10 on page 19
Figure 18 on page 27
Description
CAN link: not fitted / fitted (default)
CPUIO: +5 V
XTAL2
TST pull-down
XTAL1
Figure 5:
Fitted
Description
CAN transceiver select: L9669 / L9616 (default)
Note SW1 and SW2 must be changed together.
1 = L9669
A = L9616
L9616 ASC speed:
1-2 = pull down = high speed
2-3 = pull up = low speed
SPI EEPROM notW:
1-2 = pull down = Write protect
2-3 = pull up = Write enabled
SPI EEPROM notHOLD:
1-2 = pull down = SPI EEPROM in "hold mode"
2-3 = pull up = SPI EEPROM in "normal mode"
CAN device select: channel 0 / channel 1
Note SW6 and SW8 must be changed together.
1-2 = channel 0
2-3 = channel 1
2
I C EEPROM write control (notWC):
1-2 = pull down = enable writes to EEPROM
2-3 = pull up = disable writes to EEPROM
Default
Fitted
Fitted
Fitted
FItted
Fitted
1-2 2-3
Hardware
Default
A
A
2-3
2-3
2-3
1-2
1-2
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