Motorola M68EZ328ADS user manual LCD and Touch Panel Interface, LCD Interface

Freescale Semiconductor, Inc.

ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005

Freescale Semiconductor, Inc.

Hardware Description and Board Operation

3.8 DEBUG PORT
ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005
		ST16C2552A
EMUCS	OR
A16	Gate	CS
MC68EZ328			RS232 Transceiver	P8
		TXD
		RXD		UART
OE		CTS
		OE
WE		RTS	EN
		WE
A[0..2]		A[0..2]
D[8..15]		D[8..15]

Figure 3-7. Debug Port Interface

As shown in Figure 3-7,an external UART chip ST16C2552A is used to provide one more debug port on the ADS board. This UART chip is connected with the DB9 connector P8. Its pin assignment is shown in Figure 3-6.The baud rate of this UART chip is defaulted to 115200bps.

3.9 LCD AND TOUCH PANEL INTERFACE

3.9.1 LCD Interface

M68EZ328ADS consists of one LCD panel connector, P10. P10 is designed for 4-bit LCD panel. The pin assignments of the LCD connector is shown in Figure 3-8.

	P10
LACD	1	2	LFRM
LLP	3	4	LCLK
VO	5	6	VCC
GND	7	8	VEE
LD0	9	10	LD1
LD2	11	12	LD3
GND	13	14	LCONTRAST
PB1	15	16	NC
TOP	17	18	BOTTOM
LEFT	19	20	RIGHT

Figure 3-8. LCD and Touch Panel Connector Pin Assignment

3-23M68EZ328ADS v2.0 USER’S MANUALMOTOROLA

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