Zilog Z8F0411 Manual de usuario descargar pdf (Pagina 17)

MDS General-Purpose Board Development Kit

User Manual

UM016905-1207 MDS-GP Board Features

LCD Interface

Figure 6 displays the LCD interface on the MDS-GP board. It provides

the following two different interface options:

•

Four-bit parallel interface (using GPIO pins), controlled by LCD

enable, LCD RD/WR, and LCD register select signals.

•

C/I

C bus expander interface enabled by jumper J26

(see I

C Expanders on page 16).

ZNEO

Z16F processor module requires minor changes for LCD

interfacing by four-bit parallel interface (GPIO pins). See

ZNEO

Z16F in Appendix—MDS-PM Board Pin Maps on page

33.

LCD contrast can be adjusted using potentiometer R26. Software control

of the back light can be enabled using jumper J28. The default configura-

tion drives the LCD in a four-bit mode using GPIO port pins of your MDS

processor module. For information on pins used, see Appendix—MDS-

PM Board Pin Maps on page 33.

Note:

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Zilog Z8F0411 Manual de usuario Pagina 17