11
22.
RS232 – P5
The uEZGUI-EXP-DK Board includes one female DB9 Serial Port Connector for RS232.
The jumpers on JP7 select null modem cable mode of the serial port;
Jumper 1-2 and 3-4 for straight through mode
Jumper 1-3 and 2-4 for NULL Modem cable mode (swap TX and RX)
The serial port may also be optionally configured to support ISP programming of the LPC1788 using FlashMagic
Software. To enable ISP programming, jumper JP12 & JP13 must be loaded. Note that with these jumpers loaded,
operation of the LPC1788 may be affected by the RS232 interface signals. Refer to the FlashMagic user manual for
details. The ISP programming mode only applies to NXP LPC based uEZGUI units.
P5 Pin Number
Description
1
No Connect
2
TXD (Output)
3
RXD (Input)
4
Optional RESET input
5
Signal Ground
6
No Connect
7
Optional ISP Entry
8
No Connect
9
No Connect
23.
MicroSD – J8
The UEZGUI-EXP-DK Board includes one 4 bit high speed microSDHC card.
JP19 Pin Number
Description
1 – 2
3.3V
3 – 4
MCI DAT 2
5 – 6
MCI DAT 3
7 – 8
MCI CMD
9 – 10
MCI Clock
11 – 12
MCI DAT 0
13 – 14
MCI DAT 1
15 – 16
Ground
