BAT32G1x9 user manual | Chapter 23 LCD bus interface
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Rev.1.02
23.5 Note for LCD bus interfaces
23.5.1
Write to lbDATA/LBDATAL registers
When the LCD data bus is in transit, a write operation to the LBDATAx register may cause a collision of data
transfers. To avoid this, you must do the following:
Avoid writing LBDATAx registers simultaneously on the LCD bus transmission. When a transfer is in
progress, in order to ensure that the LBDATAx registers are not written, the LBCTL. TCIS sets 1 to decide
whether to write to the LBDATAx registers according to whether a bus interface interrupt is generated.
It is recommended to use DMA transfer to load new LCD data into the LCD Bus Interface Data Register
(LBDATAx).
