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参数资料
| 型号： | EVB51JM128 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 17/23页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR MCF51JM128 MCU |
| 产品培训模块： | Flexis JM Family Flexis JM™ USB Connectivity USB Controller Continuum |
| 标准包装： | 1 |
| 系列： | ColdFire® |
| 类型： | MCU |
| 适用于相关产品： | MCF51JM128 |
| 所含物品： | 评估板 |
| 产品目录页面： | 734 (CN2011-ZH PDF) |
| 相关产品： | MCF51JM128VLD-ND - IC MCU 128/16K FLASH/SRAM 44LQFP MCF51JM128VLH-ND - IC MCU 128/16K FLASH/SRAM 64LQFP MCF51JM128VQH-ND - IC MCU 128/16K FLASH/SRAM 64QFP |
E V B 5 1 J M 1 2 8
U S E R
G U I D E
F E B R U A R Y
1 ,
2 0 0 8
Table 8: Push Button Switches
IR Diode
PTC2/IRO
LCD PORT
The EVB51JM128 applies an LCD port with adjustable contrast input. The LCD port is de-
signed to support the CM082B-SGR1-Z LCD from FEMA Electronics. A 2x7 socket header
must be installed on the LCD module for connection to the LCD port.
The LCD port supports a 2x20, STN type, reflective, character LCD panel. LCD panel contract
is adjustable using the CONTRAST pot. The LCD setup does not support current cursor posi-
tion read-back.
The LCD port is connected to serial peripheral interface port #1 on the target MCU. A shift
data to a parallel format required by the LCD.
LCD Port Connectors
The LCD control and data signals are connected directly to the MCU_PORT I/O headers. The
signal arrangement is designed to coincide with the SPI port of a line of plug-in modules de-
signed by Axiom Manufacturing. To provide maximum flexibility, the select signal SS* has
been connected to both a dedicated SS* output and to a GPIO signal on the MCU module. An
option header at SS*, selects the select signal source. An option header at LCD_EN also al-
lows the user to disconnect the LCD module from the MCU_PORT signal lines. To prevent
signal corruption when using the SPI signals as general purpose I/O, the user should remove
the shunts on LCD_EN and SS* option headers.
Figure 10: LCD_PORT – J13
GND
CONTRAST
R/W*
DB0
DB2
LCD_D4
LCD_D6
1
3
5
7
9
11
13
2
4
6
8
10
12
14
VDD
RS
EN
DB1
DB3
LCD_D5
LCD_D7
SPI data bit definitions to LCD Port:
LCD_D[7..4] – LCD data bits D[3..0]
DB[3..0] – Unused, 10K ohm pull-downs installed
R/W – Read/Write pin, set to 0 volts, Read only
EN – LCD enable input, 1 = LCD enable
CONTRAST – LCD contrast input
RS – Register Select, 0 = LCD Command, 1 = LCD Data
NOTE: The LCD module must be connected directly to the LCD port. If a cable is used to
connect the LCD module, ensure the VDD and GND inputs are not reversed.
LCD Enable
16
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