User manual

40 GR-LEON4-ITX Development Board

User Manual

Name Function Description

D1 POWER (3.3V) Power indicator

D2 ERRORN Leon processor in 'ERROR' mode

D3-D10 GPIO[27..34] LED indicators for GPIO[27..34]

D11 DSUACT LED indicator for DSU Active

D12 USB_FAULT1 Current Overload Fault on USB-Host 1

D13 USB_FAULT0 Current Overload Fault on USB-Host 2

D11 PROM_BUSY Prom Write/Erase in Progress

D4 WDOG Watchdog indicator

Table 4-30: List and definition of PCB mounted LED's

Name Function Description

S1 GPIO24 Push button switch connected to GPIO24 (Default logic '0')

S2 GPIO25 Push button switch connected to GPIO25 (Default logic '0')

S3 GPIO26 Push button switch connected to GPIO26 (Default logic '0')

S4 GPIO[23..16] 8 pole DIP switch connected to GPIO[23..16] (Logic '1' when 'open')

S5 DSU_BREAK Push button DSU_BREAK switch

S6 RESET Push button RESET switch

S7 ETH_EDCL_ADDR 4 pole DIP switch to configure ETH EDCL address

Table 4-31: List and definition of Switches

4.3 List of Jumpers

Name Function Type Description

JP1 CLOCK_CFG 1X3 0.1”Header Connects either X1 to X2 oscillator to Main oscillator i/p

JP2 WDOG_EN 1X2 0.1”Header Install to allow Watchdog signal to reset board

JP3 RESET 1X2 0.1”Header Pins for external RESET switch

JP4 DSU-BREAK 1X2 0.1”Header Pins for external DSU BREAK switch

JP5 +3.3V 1X2 0.1”Header Test/Power header (Pin 1 = DGND, Pin2 = +3.3V)

JP6 +5V 1X2 0.1”Header Test/Power header (Pin 1 = DGND, Pin2 = +5V)

JP7 CAN1-Term 2X2 0.1”Header Configure End Node Termination for CAN-1 I/F

JP8 CAN0-Term 2X2 0.1”Header Configure End Node Termination for CAN-0 I/F

JP9 I2CS-Pullup 2X2 0.1”Header Install 1-2 and 3-4 to provide 10k pull-ups on SCL/SDA

JP10 I2CM1-Pullup 2X2 0.1”Header Install 1-2 and 3-4 to provide 10k pull-ups on SCL/SDA

JP11 ASIC-SPI 2X4 0.1”Header Install 1-2, 3-4, 5-6, 7-8 except if U2 Prom is being

programmed, when all are removed

Table 4-32: List and definition of PCB Jumpers

(for details refer to schematic, RD 1)