Toshiba H1 Series Data Book page 563

3. Setting Method
The <LDC2:0> bits in the LCDMODE1 register are used to set the display data
rotation function.
bit Symbol
LCDMODE1
(0281H)
Read/Write
After reset
Function
Note: The <LDC2:0> setting must not be changed while the LCDC is operating. Be sure to set
LCDCTL0<START> to "0" to stop the LCDC operation before changing <LDC2:0>.
When the horizontal and vertical flip function or 90-degree rotation function is used,
the display RAM start address of main/sub area should be set differently from when
in normal mode, as shown in the table below.
Normal
90-degree rotation
Horizontal flip
Vertical flip
Horizontal and vertical flip
How to calculate the point B address:
(320×240×16/8)- 2 = 153600 - 2
LCDMODE1 Register
7 6 5
LDC2 LDC1
LDC0
R/W R/W R/W
0 0
Data rotation function
(Supported for 64K-color: 16 bps
only)
000: Normal 100: 90-degree
001: Horizontal flip 101: Reserved
010: Vertical flip 110: Reserved
011: Horizontal and vertical flip
111: Reserved
Mode Setting Point
= 153598 [decimal]
= 257FE [hex]
Point A
Display RAM Image (QVGA 320 × 240)
92CZ26A-560
4 3
LDINV AUTOINV
R/W R/W
0 0 0
LD bus Auto bus
inversion inversion
0: Disable
0: Normal
1: Enable
1: Invert
(Valid for
TFT only)
Display RAM Start Address
Setting Example
Point A 00000h
Point B 257FEh
Point A 00000h
Point B 257FEh
Point B 257FEh
Point B
TMP92CZ26A
2 1
INTMODE FREDGE SCPW2
R/W W
0 0
Interrupt LFR edge LD bus
selection Trance
0: LHSYNC
Speed
0:LLOAD Front Edge
1:LVSYNC 1:LHSYNC 0: normal
Rear Edge 1: 1/3
0
W
0