參數(shù)資料
型號(hào)： PCF2103EU
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)： 39/56頁(yè)
文件大?。?/td> 300K
代理商： PCF2103EU
1998 May 11
39
Philips Semiconductors
Product specification
LCD controllers/drivers
PCF2103 family
15.1
4-bit operation, 1-line display using internal
reset
The program must set functions prior to 4-bit operation;
Table 11 shows an example. When power is turned on,
8-bit operation is automatically selected and the PCF2103
attempts to perform the first write as an 8-bit operation.
Since nothing is connected to DB0 to DB3, a rewrite is
then required. However, since one operation is completed
in two accesses of 4-bit operation, a rewrite is required to
set the functions (see Table 11 step 3). Thus, DB4 to DB7
of the ‘function set’ are written twice.
15.2
8-bit operation, 1-line display using internal
reset
Table 12 shows an example of a 1-line display in 8-bit
operation. The PCF2103 functions must be set by the
‘function set’ instruction prior to display. Since the DDRAM
can store data for 80 characters, the RAM can be used for
advertising displays when combined with display shift
operation.
Since the display shift operation changes display position
only and DDRAM contents remain unchanged, display
data entered first can be displayed when the ‘return home’
operation is performed.
15.3
8-bit operation, 2-line display
For a 2-line display, the cursor automatically moves from
the first to the second line after the 40th digit of the first line
has been written. Thus, if there are only 8 characters in the
first line, the DDRAM address must be set after the eighth
character is completed (see Table 6). It should be noted
that both lines of the display are always shifted together;
data does not shift from one line to the other.
15.4
I
2
C-bus operation, 1-line display
A control byte is required with most commands
(see Table 15).
Table 11
4-bit operation, 1-line display example; using internal reset
STEP
INSTRUCTION
DISPLAY
OPERATION
1
power supply on (PCF2103 is initialized by
the internal reset circuit)
function set
RS
R/W
DB7
0
0
0
initialized; no display appears
2
DB6
0
DB5
1
DB4
0
sets to 4-bit operation; in this instance operation
is handled as 8-bit by initialization and only this
instruction completes with one write
3
function set
0
0
0
0
0
0
0
0
1
0
0
0
sets to 4-bit operation, selects 1-line display and
V
LCD
= V
0
; 4-bit operation starts from this point
and resetting is needed
4
display on/off control
0
0
0
0
entry mode set
0
0
0
0
0
1
0
1
0
1
0
0
_
turns on display and cursor; entire display is
blank after initialization
5
0
0
0
1
0
1
0
0
_
sets mode to increment the address by 1 and to
shift the cursor to the right at the time of write to
the DD/CGRAM; display is not shifted
6
‘write data’ to CGRAM/DDRAM
1
0
1
0
0
0
1
0
0
0
1
0
P_
writes ‘P’; the DDRAM has already been selected
by initialization at power-on; the cursor is
incremented by 1 and shifted to the right
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCF2103EU/2 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
PCF2103EU/2/F2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:LCD controllers/drivers
PCF2103EU/F2 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
PCF2103FAMILY 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
PCF2104C 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:LCD controller/driver
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