Connectivity - Digilent Basys MX3 Reference Manual

Basys MX3™ Board Reference Manual
The following timing diagrams detail how write and read processes must be implemented. The essential difference
is the polarity of the DISP_RW signal (0 for write and 1 for read). For more detailed timing information, refer to the
KS0066U datasheet.
8.1

Connectivity

Name PIC32 Pin
DISP_RS AN15/RPB15/OCFB/CTED6/PMA0/RB15
DISP_RW RPD5/PMRD/RD5
DISP_EN RPD4/PMWR/RD4
DB0 PMD0/RE0
DB1 PMD1/RE1
DB2 AN20/PMD2/RE2
DB3 RPE3/CTPLS/PMD3/RE3
DB4 AN21/PMD4/RE4
DB5 AN22/RPE5/PMD5/RE5
DB6 AN23/PMD6/RE6
DB7 AN27/PMD7/RE7
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Figure 8.2. LCD write timing.
Figure 8.3. LCD read timing.
Table 8.1. LCD connectivity.
Description
Register Select: High for Data Transfer,
Low for Instruction Transfer.
Read/Write signal: High for Read
mode, Low for Write mode.
Read/Write Enable: High for Read,
falling edge writes data
Data bits 0 -7.
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