參數(shù)資料
型號: S1C88816D
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.2 MHz, MICROCONTROLLER, UUC164
封裝: DIE-164
文件頁數(shù): 171/173頁
文件大小: 1411K
代理商: S1C88816D
S1C88816 TECHNICAL MANUAL
EPSON
89
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (LCD Controller)
5.11 LCD Controller
5.11.1 Configuration of LCD controller
The S1C88816 has a built-in dot matrix LCD driver
that can drive an LCD panel with a maximum of
2,304 dots (72 segments
× 32 commons).
Figure 5.11.1.1 shows the configuration of the LCD
controller and the drive power supply.
5.11.2 Mask option
The drive duty for the built-in LCD driver can be
selected whether it will be 1/32 and 1/16 software-
switched or fixed at 1/8 by mask option.
LCD drive duty
s
s 1/32 & 1/16 duty
s
s 1/8 duty
When "1/32 & 1/16 duty" is selected, the drive
duty can be selected by software. When "0" is
written to the drive duty selection register LDUTY,
1/32 duty is selected and when "1" is written, 1/16
duty is selected.
When "1/8 duty" is selected, the drive duty is fixed
at 1/8 and setting of LDUTY becomes invalid.
When the built-in LCD driver is not used, select the
default setting of "1/32 & 1/16 duty".
(a) VC2 standard (1/5 bias)
VC2
VC3
VC4
VC5
CA
CB
CC
CD
CE
CF
CG
VSS
VC1
LC3
LC2
LC1
LC0
DTFNT
VC1
VC3–VC5
LCDC1
LCDC0
LDUTY
DSPAR
VC2
COM0–COM15
COM16–COM31/SEG87–SEG72
SEG0–SEG71
LCD system
voltage booster/
reducer
LCD system
voltage regulator
LCD contrast
adjustment circuit
LCD driver
Display memory
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