Jumpers
©
PHYTEC Meßtechnik GmbH 2009 L-719e_2
25
Jumper Default Fuonction
J13
Connects the Asynchronous data input (UART TxD) of the
optional USB <-> UART converter U10 with the
Microcontroller´s P5.0 (RxD0 ASC0)
open
X
TxD of U10 is NOT connected to Microcontroller´s P5.0
(RxD0 ASC0)
closed
TxD of U10 is connected to Microcontroller´s P5.0 (RxD0
ASC0)
J31 and J33 must be open when J13 is closed
footprint
0R / SMD 0805
J15
Connects the MCU´s SLSO2 (SSC Slave Selct Output2)
Output to the onboard I2C Master device U12
open
P2.2 is freely usable on X3
footprint
0R / SMD 0805
J
17
Connects the MCU´s /CS1 output to the onboard SRAM
BANK1 memory U17/U18
open
/CS1 is freely usable on X3
closed
X
/CS1 is connected to the onboard SRAM BANK1 U17/U18
footprint
0R / SMD 0805
J
18
Connects the MCU´s /CS2 output to the onboard SRAM
BANK2 memory U19/U20
open
X
/CS2 is freely usable on X3
closed
/CS2 is connected to the onboard SRAM BANK2 U19/U20
footprint
0R / SMD 0805
J19
Connects the MCU´s P1.15 to control the onboard LED D1
open
P1.15 is NOT connected to control the onboard LED D1
closed
X
P1.15 is connected to control the onboard LED D1
footprint
0R / SMD 0805
J
24
Connects the MCU´s /CS3 output to the onboard Ethernet
Controller U21
open
/CS3 is freely usable on X3
closed
X
/CS3 is connected to the onboard Ethernet Controller U21
footprint
0R / SMD 0805
J25
Connects the MCU´s P1.0 to the onboard IRQ-Output
Ethernet Controller U21
open
P1.0 is freely usable on X3
closed
X
P1.0 is input for IRQ of the Ethernet Controller U21
footprint
0R / SMD 0805
