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PCF8536AT 数据表(PDF) 7 Page - NXP Semiconductors

部件名 PCF8536AT
功能描述  Universal LCD driver for low multiplex rates including a 6 channel PWM generator
PDF  74 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

PCF8536AT 数据表(HTML) 7 Page - NXP Semiconductors

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PCF8536
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 2 — 21 February 2012
7 of 74
NXP Semiconductors
PCF8536
Universal LCD low multiplex driver with 6 channel PWM generator
8.
Functional description
The PCF8536 is a versatile peripheral device designed to interface any microcontroller to
a wide variety of LCDs and 6 backlight LEDs. It can directly drive any multiplexed LCD
containing up to eight backplanes and up to 44 segments.
8.1 Commands of PCF8536
The PCF8536 is controlled by 15 commands, which are defined in Table 4. Any other
combinations of operation code bits that are not mentioned in this document may lead to
undesired operation modes of PCF8536.
[1]
Information about control byte and register selection see Section 9.1 on page 46.
8.1.1 Command: initialize
This command generates a chip-wide reset. It has the same function as the RESET pin.
Reset takes 1 ms to complete.
Table 4.
Commands of PCF8536
Command name
Register
selection
RS[1:0][1]
Bits
Reference
7
6
5
4
3
2
1
0
initialize
00
0001
011
0
Section 8.1.1
OTP-refresh
00
1111
000
0
Section 8.1.2
PWM-inversion
00
0001
010
PWMI Section 8.1.3
mode-settings
00
0101
BPS
INV
PD
E
Section 8.1.4
oscillator-control
0
0
0001
1EFR
COE
OSC
Section 8.1.5
GPO-output-config
00
1100
GPM1[1:0]
GPM0[1:0]
Section 8.1.6
00
1101
GPM3[1:0]
GPM2[1:0]
00
1110
GPM5[1:0]
GPM4[1:0]
set-MUX-mode
00
0000
00M[1:0]
Section 8.1.7
set-bias-mode
00
0000
01B[1:0]
Section 8.1.8
frame-frequency-LCD
00
001FD[4:0]
Section 8.1.9
frame-frequency-PWM
00
0100
FP[3:0]
Section 8.1.10
GPO-static-data
00
0110
0GPO2 GPO1 GPO0 Section 8.1.11
00
0110
1GPO5 GPO4 GPO3
load-data-pointer-LCD
0
0
1
0
DP[5:0]
Section 8.1.12
load-data-pointer-PWM
00
0111
0PP[2:0]
Section 8.1.13
write-RAM-data
0
1
D[7:0]
Section 8.1.14
write-PWM-data
1
0
0
P[6:0]
Section 8.1.15
Table 5.
Initialize - initialize command bit description
Bit
Symbol
Value
Description
7 to 0
-
00010110
fixed value



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