Motorola M68EZ328ADS 用户手册
Hardware Description and Board Operation
3-23
M68EZ328ADS v2.0 USER’S MANUAL
MOTOROLA
3.8 DEBUG PORT
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.
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.
panel. The pin assignments of the LCD connector is shown in Figure 3-8.
EMUCS
WE
A[0..2]
D[8..15]
CS
WE
A[0..2]
D[8..15]
ST16C2552A
MC68EZ328
OE
OE
OR
Gate
A16
RS232 Transceiver
EN
P8
UART
TXD
RXD
CTS
RTS
Figure 3-7. Debug Port Interface
Figure 3-8. LCD and Touch Panel Connector Pin Assignment
1
3
5
7
9
11
13
15
17
19
3
5
7
9
11
13
15
17
19
2
4
6
8
4
6
8
10
12
14
16
18
20
12
14
16
18
20
LACD
LLP
VO
GND
LD0
LD2
LD2
GND
PB1
TOP
LEFT
LFRM
LCLK
VCC
VEE
LD1
LD3
LCLK
VCC
VEE
LD1
LD3
LCONTRAST
NC
BOTTOM
RIGHT
BOTTOM
RIGHT
P10
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
For More Information On This Product,
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ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005
ARCHIVED BY FREESCALE SEMICONDUCT
OR,
INC.
2005