- Silex Technology Embedded Intelligent Module Developer's Reference Guide

Installing the Evaluation Daughtercard
Silex
Page 17
Part Number 140-00192-100
LCD Interface
A 16x2 LCD display is available as an option for the SX-560-6900 Evaluation Daughtercard. This LCD
can be controlled from either Serial Port 2 or via the SPI interface. The LCD display plugs into header
JP1. Header JP12 is used to select serial or SPI control (place a jumper on pins 1 and 2 to select serial,
or place the jumper on pins 2 and 3 to select SPI).
OEM Interface Electrical Characteristics
Table 12 OEM Signal Parameter Descriptions
Parameter
Symbol
Condition
Minimum
Maximum
Unit
Input high voltage
Vih
2.0!
Volts
Input low voltage
Vil
0.8
Volts
Output high voltage
UART0_TXD, UART0_RTS,
UART1_TXD, UART1_RTS
UART2_TXD
Voh
Ioh = 4mA
2.4
Volts
Output low voltage
UART0_TXD, UART0_RTS,
UART1_TXD, UART1_RTS
UART2_TXD
Vol
Iol = 8mA
0.4
Volts
Output high voltage
GPIO 1 to 10, SPI, CS, SPI_SDO,
SPI_CLK, Reset_N
Voh
Ioh = 8mA
2.4
Volts
Output low voltage
GPIO 1 to 10, SPI, CS, SPI_SDO,
SPI_CLK, Reset_N
Vol
Iol = 8mA
0.4
Volts
Input Leakage Current
Ii
0 < Vin < 3.3v
-10
+10
µA