參數(shù)資料
型號(hào)： PCF2119X-2
廠商： NXP Semiconductors N.V.
英文描述： LCD controllers/drivers
中文描述： LCD控制器/驅(qū)動(dòng)器
文件頁(yè)數(shù)： 27/60頁(yè)
文件大小： 284K
代理商： PCF2119X-2
28. August 2000
27
Philips Semiconductors
Product specification
LCD controllers/drivers
PCF2119x-2
9
EXTENDED FUNCTION SET INSTRUCTIONS AND
FEATURES
9.1
New instructions
H = 1, sets the chip into alternate instruction set mode.
9.2
Icon control
The PCF2119x can drive up to 160 icons. See Fig.17 for
CGRAM to icon mapping.
9.3
IM
When IM = 0, the chip is in character mode. In the
character mode characters and icons are driven
(MUX 1 : 18). The V
LCD
generator, if used, produces the
V
LCD
voltage programmed in register V
A
.
When IM = 1, the chip is in icon mode. In the icon mode
only the icons are driven (MUX 1 : 2) and the V
LCD
voltage
generator, if used, produces the V
LCD
voltage as
programmed in register V
B
.
9.4
IB
Icon blink control is independent of the cursor/character
blink function.
When IB = 0, icon blink is disabled. Icon data is stored in
CGRAM character 0 to 3 (4
×
8
×
5 = 160 bits for
160 icons).
When IB = 1, icon blink is enabled. In this case each icon
is controlled by two bits. Blink consists of two half phases
(corresponding to the cursor on and off phases called even
and odd phases hereafter).
Icon states for the even phase are stored in CGRAM
characters 0 to 3 (4
×
8
×
5 = 160 bits for 160 icons).
These bits also define icon state when icon blink is not
used.
Icon states for the odd phase are stored in CGRAM
character 4 to 7 (another 160 bits for the 160 icons). When
icon blink is disabled CGRAM characters 4 to 6 may be
used as normal CGRAM characters.
Table 10
Blink effect for icons and cursor character blink
PARAMETER
EVEN PHASE
ODD PHASE
Cursor character blink
Icons
block (all on)
state 1: CGRAM character 0 to 2
normal (display character)
state 2: CGRAM character 4 to 6
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