EAI-I130 User Manual
18
SW1: MCU UART Trace Switch
Latch 1 & Latch 2 turn ON, Latch 3 & Latch 4 turn OFF for Normal Operation (Default)
Latch 1 & Latch 2 turn OFF, Latch 3 & Latch 4 turn ON for MCU Upgrade Program.
Latch
No.
Normal
Mode
MCU Program
Mode
1
ON
OFF
2
ON
OFF
3
OFF
ON
4
OFF
ON
PIN
Description
1
MCU_UART_RX
2
MCU_UART_TX
3
MCU_UART_RX
4
MCU_UART_TX
5
MCU_UART_TX_ISP
6
MCU_UART_RX_ISP
7
USBURT_RXD
8
USBURT_TXD
J7: MCU ISP MODE
(1-2) = Normal Operation (Default)
(2-3) = ISP MODE.
PIN
Description
1
Pull up 10K to 3V3
2
PIO0_12
3
GND
J8: MCU Watch Dog
(1-2) = Watch Dog Enable
(2-3) = Watch Dog Disable (Default)
PIN
Description
1
+P3V3_MCU
2
MCN_WDG
3
GND
