HD66108T00 HITACHI [Hitachi Semiconductor], HD66108T00 Datasheet - Page 16

• Manufacturer Part Number: HD66108T00
• Description: (RAM-Provided 165-Channel LCD Driver for Liquid Crystal Dot Matrix Graphics)
• Manufacturer: HITACHI [Hitachi Semiconductor]

3. Display Data Write
3.1 Display Memory and Data Register Accesses
(1) Access
Figure 6 shows the relationship between the address register (AR) and internal registers and display
memory in the HD66108T. Display memory shall be referred to as a data register since it can be
handled as other registers.
To access a data register, the register address assigned to the desired register must be written into the
address register’s Register No. bits. The MPU will access only that register until the register address is
updated.
Figure 6 Relationship between Address Register and Register No.
Registers accessible with pin RS = 0
Registers accessible with pin RS = 1
Register No.
= 0
memory
Display
Address register
Bit
Data registers
X address
= 1
register
7
6
Y address
= 2
register
5
4
3
= 3
Control
register
2
Register No.
1
= 4
register
Mode
0
= 5
C select
register
HD66108
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