參數(shù)資料
型號: PCF8535
廠商: NXP Semiconductors N.V.
英文描述: 65 x 133 pixel matrix driver
中文描述: 65 × 133像素矩陣驅(qū)動程序
文件頁數(shù): 26/52頁
文件大?。?/td> 1765K
代理商: PCF8535
1999 Aug 24
26
Philips Semiconductors
Objective specification
65
×
133 pixel matrix driver
PCF8535
7.16.5
S
PECIAL FEATURE COMMAND PAGE
7.16.5.1
State control
DM
Direct mode allows V
LCDOUT
to be sourced directly from
V
DD2
. This may be useful in systems where V
DD
is to be
used for V
LCD
.
DOF
Displayoffwillturn offallinternalanalogcircuitrythatisnot
required for temperature measurement.
As a consequence the display will be turned off. This
mode is only required if temperature measurements are
required whilst in power-down mode.
7.16.5.2
Oscillator setting
The internal oscillator may be disabled and the source
clock for the display derived from the OSC pad. It is
important to remember that LCDs are damaged by DC
voltages and that the clock, whether derived internally or
externally, should never be disabled whilst the display is
active. The internal oscillator is switched off during
power-down mode.
When using an external clock and disabling it during
power-down mode will further reduce the standby current.
If it is not possible to disable it externally then it is worth
notingthatbyselectingtheinternalclock,whichisdisabled
during power-down mode, the same effect may be
achieved.
7.16.5.3
COG/TCP
The chip may be mounted on either a glass, foil or tape
carrier package. For these applications, different
organizations of the row pads are required to negate the
necessity of routing under the device. The TRS and BRS
allow for this swapping. The behaviour of both of these bits
is further described in Section 7.15.
7.16.6
I
NSTRUCTION SET
Table 16
Instruction set
INSTRUCTION
D/C
R/W
(1)
I
2
C-BUS COMMAND BYTE
I
2
C-BUS COMMANDS
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
H[2:0] = XXX; RAM read/write command page
Write data
Read status
1
0
0
1
D
7
D
7
D
6
D
6
D
5
D
5
D
4
D
4
D
3
D
3
D
2
D
2
D
1
D
1
D
0
D
0
writes data to display RAM
returns result of
temperature measurement
no operation
jump to H[2:0] = 111
NOP
Default H[2:0]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
H[2:0] = 111; function and RAM command page
Command page
Function set
0
0
0
0
0
0
0
0
0
0
0
1
1
0
H
2
PD
H
1
V
H
0
0
select command page
power-down control, data
entry mode
set RAM page for X address
sets Yaddress of RAM
0
Y
8
sets X address of RAM
0
X
127
RAM page
Set Yaddress of
RAM
Set X address of
RAM
0
0
0
0
0
0
0
1
1
0
0
0
0
Y
3
XM
0
Y
2
0
Y
1
0
Y
0
0
0
1
X
6
X
5
X
4
X
3
X
2
X
1
X
0
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