EM65570
68COM/ 98SEG 65K Color STN LCD Driver
8.2.5 Display Control (2) Register
D7 D6 D5 D4 D3 D2 D1
D0
CSB RS RDB WRB RE2 RE1 RE0
0
1
1
1
*
REV NLIN SWAP
0
1
1
0
0
0
0
(At the time of reset: {REV, NLIN, SWAP} = 0H, read address: 7H)
Various display control is set up as follows:
REV
Sets LCD light ON/OFF control in combination with the display RAM data high/low
status.
REV =”0”: When the RAM data is at “H,” LCD is at ON voltage (normal)
When the RAM data is at “L,” LCD is at OFF voltage (normal)
REV =”1”: When the RAM data is at “H,” LCD is at OFF voltage (reverse)
When the RAM data is at “L,” LCD is at ON voltage (reverse)
NLIN
The NLIN controls the n-line alternate drive ON/OFF.
NLIN = “0”: n-line alternate drive OFF. In each frame, the alternated signals (M) are
reversed.
NLIN = ”1”: n-line alternate drive ON. According to data set up in the n-line alternated
register, the alternation is made.
SWAP
Swap the write data bit mode when writing data to display RAM.
SWAP = “0”: Normal mode.
SWAP = “1”: During data writing, exchange the R and B definitions of Segment outputs.
8.2.6 Increment Control Register Set
D7 D6 D5 D4 D3 D2 D1 D0
WIN AIM AYI AXI
CSB RS RDB WRB RE2 RE1 RE0
1
0
0
0
0
1
1
0
0
0
0
(At the tine of reset: {WIN, AIM, AYI, AXI} = 0H, read address: 8H)
This register controls the increment mode and window function when accessing display
RAM. The increment operation of the AX and AY registers is controlled by the AIM, AYI
and AXI registers setting and by every write or every read access to display RAM. The
AY register directly connects to display RAM as the Y address. The AX register
connects to the address converter and the resulting output to display RAM as the X
address in the auto increment mode. The AX and AY register are incremented, but the
X and Y addresses are not incremented directly.
To set this control register, the increment operation of the address can be made without
setting successive addresses for writing or reading data to display RAM from MPU.
The WIN register is used for window function control.
WIN=”0”: Normal RAM access
WIN=”1”: Window function access
62 •
Product Specification (V1.0) 09.05.2005
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
