Lcd Control Register 2 (Lcr2) - Hitachi H8S/2646 Hardware Manual

18.2.3

LCD Control Register 2 (LCR2)

Bit 7
LCDAB
Initial value 0
Read/Write R/W
LCR2 is an 8-bit read/write register which controls switching between the A waveform and B
waveform.
LCR2 is initialized to H'70 upon reset and in standby mode.
Bit 7—A Waveform/B Waveform Switching Control (LCDAB): Bit 7 specifies whether the A
waveform or B waveform is used as the LCD drive waveform.
Bit 7: LCDAB Description
0 Drive using A waveform
1 Drive using B waveform
Bits 6 and 5—Reserved: These bits are always read as 1 and cannot be modified.
Bits 4 to 0—Reserved: These bits are always read as 0 and should only be written with 0.
6 5
— — —
1 1
— — —
4 3 2
— —
0 0 0
— —
1 0
— —
0 0
— —
(Initial value)
639