BAT32G1x9 user manual | Chapter 23 LCD bus interface
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Rev.1.02
23.2.2
LCD bus interface read data registers (LBDATAR, LBDATARL).
LBDATAR is a read-only register. It contains the data that was last read and transmitted through the LCD
bus interface. Reading this register does not initiate a new read transfer on the LCD bus interface.
This register supports either a 16-bit read operation or an 8-bit read operation.
When a reset occurs, lbDATAR has a reset value of 0000H
Figure 23-3. Format
of the LCD bus interface read data registers
(LBDATAR, LBDATARL
).
Address: 0x40045412H
reset value:
0000H
R/W
LBDATARL
Symbol
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
LBDATAR
By reading this register, the data transferred to the LBDATA register during the previous read operation
can be obtained without having to start the LCD bus transfer again.
Reading the LBDATAR register does not change lbcTL. Status of the BYF flag and the LBCTL.TPF flag.
Note: When accessing the LBDATAR register, it can only point to the even address of the register, and the odd address
of the register is prohibited.