EM65567 Datasheet, PDF (70/93 Pages) ELAN Microelectronics Corp – 66 COM/ 96 SEG 256 Color STN LCD Driver

EM65567
66 COM/ 96 SEG 256 Color STN LCD Driver
SCOM
SSEG
VDD level
VSS level
VDD level
VSS level
1 frame
1 frame
Drive waveform when (SPC1, SPC0) =(1, 1)
VDD level
SCOM
VSS level
VDD level
Preliminary ^SSEG
VSS level
1 frame
1 frame
8.2.19 Display Select Control
D7 D6 D5 D4 D3 D2 D1 D0 CSB RS RDB WRB RE2 RE1 RE0
1 0 0 0 PWM GLS PSEL DSEL 0 1 1 0 1 0 0
(At the time of reset: {PWM, GLSA, PSEL, DSEL} = 0H, read address: 8H)
PSEL
The PSEL register select assessable plane from MPU in the monochrome display mode (MON=”1”).
PSEL = “0”: The plane 0 can access
PSEL = ”1”: The plane 1 can access
DSEL command
The DSEL register select active plane for display in the monochrome display mode(MON=”1”).
DSEL = “0”: The plane 0 is active for display.
DSEL = “1”: The plane 1 is active for display.
GLSB
For the segment driver of 4-gradation display, select 4 gradations from 8 gradations using the 2 bits written to the
corresponding RAM area and the 1 bit supplemented by the gradation LSB circuit. Supplement the 1 bit of data by setting the
gradation LSB register (GLSB).
Gradation LSB = “0”: Selects 0 as the LSB information on the RAM for 4-gradation segment driver.
Gradation LSB = “1”: Selects 1 as the LSB information on the RAM for 4-gradation segment driver.
PWM
The PWM register selection the gradation display mode.
* This specification is subject to be changed without notice. 70
2003/1/9 (V0.1)