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Pinout and signal descriptions
42
NS9750 Hardware Reference
LCD module signals
The LCD module signals are multiplexed with GPIO pins. They include seven control
signals and up to 24 data signals. Table 11 describes the control signals.
The CLD[23:0] signal has eight modes of operation:
See the discussion of LCD panel signal multiplexing details for information about the
CLD signals used with STN and TFT displays.
Signal name Type Description
CLPOWER Output LCD panel power enable
CLLP Output Line synchronization pulse (STN) / horizontal synchronization pulse
(TFT)
CLCP Output LCD panel clock
CLFP Output Frame pulse (STN) / vertical synchronization pulse (TFT)
CLAC Output STN AC bias drive or TFT data enable output
CLD[23:0] Output LCD panel data
CLLE Output Line end signal
Table 11: LCD module signal descriptions
TFT 24-bit interface 4-bit mono STN single panel
TFT 18-bit interface 4-bit mono STN dual panel
Color STN single panel 8-bit mono STN single panel
Color STN dual panel 8-bit mono STN dual panel