PCF2103EUSLASH2SLASHF2 datasheet(39/56 Pages) PHILIPS

39 / 56 page

1998 May 11

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

I2C-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

power supply on (PCF2103 is initialized by

the internal reset circuit)

initialized; no display appears

function set

R/W

DB7

DB6

DB5

DB4

sets to 4-bit operation; in this instance operation

is handled as 8-bit by initialization and only this

instruction completes with one write

000010

function set

000010

sets to 4-bit operation, selects 1-line display and

VLCD =V0; 4-bit operation starts from this point

and resetting is needed

000000

display on/off control

000000

turns on display and cursor; entire display is

blank after initialization

001110

entry mode set

000000

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

000110

‘write data’ to CGRAM/DDRAM

100101

writes ‘P’; the DDRAM has already been selected

by initialization at power-on; the cursor is

incremented by 1 and shifted to the right

100000

PCF2103EU/2/F2 数据表(PDF) 39 Page - NXP Semiconductors

PCF2103EU/2/F2 数据表(HTML) 39 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56

数据表下载

链接网址

PCF2103EU/2/F2 数据表(PDF) 39 Page - NXP Semiconductors

PCF2103EU/2/F2 数据表(HTML) 39 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56

数据表 下载

链接网址

数据表下载