5XX MOTHERBOARD ONLY AXIOM, 5XX MOTHERBOARD ONLY Datasheet - Page 16

• Manufacturer Part Number: 5XX MOTHERBOARD ONLY
• Description: CMD-5XX MOTHERBOARD ONLY
• Manufacturer: AXIOM

Specifications of 5XX MOTHERBOARD ONLY

• Silicon Manufacturer: Freescale
• Core Architecture: Power
• Core Sub-architecture: PowerPC
• Features: Plug And Play, Axiom Monitor, Communication Interfaces, Keypad And LCD Module Support
• Kit Contents: Board
• Silicon Core Number: MPC555, MPC556, MPC561
• Silicon Family Name: MPC5xx

LCD-PORT and KEYPAD / KEY-PORT
The LCD Port provides a versatile connector to attach 80 or 160 character display modules and some graphics display modules with
embedded drivers. The PRU (U20) provides address decode and LCD select control signals for the LCD and Keypad ports. Both
ports are controlled by host processor chip select CS2 or CS3 (default) when enabled by PRU_EN option jumper .
The KEYPAD and KEY_PORT connectors can be used to connect passive keypad devices to the board.
Example source code for the LCD and Keypad drivers are provided on the Axiom CMD-5xx support CD. The memory map offset
for the LCD / Keypad are determined by the PRU is as follows:
LCD / Keypad Memory Map
LCD Display CONTRAST
The CONTRAST adjustment allows a contrast Vee voltage to be presented to the LCD_PORT of –5V to +5V DC.
JP2 - LCD_PORT Power Polarity Select
JP2 determines the display power pin polarity on the LCD_PORT. Depending on the type and location of the IDC connector on
your display module, the power connections may need to be reversed. Care should be used to verify proper connection and signal
matching at the IDC Cable Connector and LCD_PORT.
See the schematic to match this jumper setting to your LCD device connector. Contact [e-mail] for assistance
applying a LCD module.
1
0x0006 -
0xFFFF
USE CAUTION when connecting your LCD to the LCD-PORT - make sure the power
polarity (JP2) and correct placement of the LCD cable so that signals are correctly matched.
0x0000
0x0001
0x0002
0x0003
0x0004
0x0005
LCD_PORT, Command Register 1 for up to 80 character display.
LCD_PORT, Display Data Register 1 for up to 80 character display.
LCD_PORT, Command Register 2 for graphic or 160 character display.
LCD_PORT, Display Data Register 2 for graphic or 160 character display.
Keypad / KEY_PORT key data. Read Only.
Keypad / KEY_PORT key data. Read Only.
Not used
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CMD-5xx 08/07/02