Specifications

S1C62N82 TECHNICAL HARDWARE EPSON I-51
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (LCD Driver)
Table 4.6.2 shows the control bits of the LCD driver and
their addresses. Figure 4.6.6 shows the display memory
map.
Table 4.6.2 Control bits of LCD driver
Control of LCD
driver
Fig. 4.6.6
Display
memory map
Address
0123456789ABCDEF
090
0A0
0B0
0C0
0D0
Display memory (R/W)
80 words x 4 bits
In the display memory (80 words × 4 bits), the memory
which is not assigned may be used as general-purpose RAM.
Address Comment
Register
D3 D2 D1 D0 Name SR 1 0
0FBH
CSDC 0 CMPDT CMPON
R
0
1
0
LCD drive switch
Voltage comparator ON/OFF
Static
+ > -
ON
Dynamic
- > +
OFF
R/W R/W
CSDC
0
CMPDT
CMPON
Comparator's voltage condition:
1 = CMPP(+)input > CMPM(-)input,
0 = CMPM(-)input > CMPP(+)input