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14.4
Display Memory
The display memory is located to addresses F000H–F07FH (F000H–F03FH in the S1C63003) in the data memory
area and each data bit can be allocated to a segment terminal by mask option.
Model
S1C63016
S1C63008
S1C63004
S1C63003
When a bit in the display memory is set to "1," the corresponding LCD segment goes on, and when it is set to "0,"
the segment goes off.
At initial reset, the data memory contents become undefined hence, there is need to initialize by software.
Address
Low
0
Base
F000H
F010H
F020H
F030H
F040H
F050H
F060H
F070H
Address
Low
0
Base
F000H
F010H
F020H
F030H
The S1C63004/008/016 includes a 128-word memory (addresses F000H–F07FH) and the S1C63003 includes a 64-
word memory (addresses F000H–F03FH). Any address can be allocated for a segment output. Note, however, that
the number of bits usable as display memory are limited to the size shown above. The memory bits that are not used
for LCD display can be used as general-purpose registers.
14.5
i/O Memory of lCD Driver
Table 14.5.1 shows the I/O addresses and the control bits for the LCD driver.
Address
Register name R/W Default
FF12H D3 FlCKS1
R/W
D2 FlCKS0
R/W
D1 VCCKS1
R/W
D0 VCCKS0
R/W
FF50H D3 0 (*3)
D2 0 (*3)
D1 DSPC1
R/W
D0 DSPC0
R/W
FF51H D3 STCD
R/W
D2 lDuTY2
R/W
D1 lDuTY1
R/W
D0 lDuTY0
R/W
S1C63003/004/008/016 TeChniCal Manual
(Rev. 1.1)
Table 14.
4.1 Display memory
Memory size
448 bits
400 bits
288 bits
110 bits
1
2
3
4
5
(a) S1C63004/008/016
1
2
3
4
5
(b) S1C63003
Figure 14.
4.1 Display memory map
Table 14.
5.1 Control bits of LCD driver
Setting/data
0
3 –
0
2 16.0
0
3 –
0
2 –
R
– (*2)
R
– (*2)
1
3 All on
0
2 All off
0
1 Static
0
7 1/8 (*6)
4 1/7 (*6)
0
6 1/7 (*6)
3 1/6 (*6)
0
5 1/8 (*6)
2 1/5
Seiko epson Corporation
SEG terminals
56 terminals (SEG0–SEG55)
50 terminals (SEG0–SEG29, SEG36–SEG55)
36 terminals (SEG0–SEG19, SEG40–SEG55)
22 terminals (SEG0–SEG9, SEG44–SEG55)
6
7
8
9
A
S1C63016: 448 bits
S1C63008: 400 bits
S1C63004: 288 bits
R/W
6
7
8
9
A
S1C63003: 110 bits
R/W
1 21.3
Frame frequency (Hz) selection
0 32.0
1 2048
V
boost frequency (Hz) selection
C
0 Off
–
Unused
–
Unused
1 All on
LCD display mode selection
0 Normal
0 Dynamic
LCD drive mode switch
1 1/4
LCD drive duty selection
0 1/3
14 lCD DRiVeR
B
C
D
E
F
B
C
D
E
F
Function
14-15
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