Datasheet

LPC12D27 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 1 — 20 September 2011 6 of 46
NXP Semiconductors
LPC12D27
32-bit ARM Cortex-M0 microcontroller
Fig 3. LCD display controller block diagram
40
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LCD BIAS
GENERATOR
LCD
VOLTAGE
SELECTOR
PCF8576D
BACKPLANE
OUTPUTS
DISPLAY
CONTROLLER
COMMAND
DECODER
WRITE DATA
CONTROL
DISPLAY RAM
40 x 4-BIT
OUTPUT BANK SELECT
AND BLINK CONTROL
DISPLAY
REGISTER
DISPLAY SEGMENT
OUTPUTS
DATA POINTER AND
AUTO INCREMENT
SUBADDRESS
COUNTER
CLOCK SELECT
AND TIMING
OSCILLATOR
INPUT
FILTERS
BLINKER
TIMEBASE
POWER-ON
RESET
I
2
C-BUS
CONTROLLER
BP0 BP2 BP1 BP3
V
DD
OSC
SYNC
S0 to S39
LCD_SDA
LCD_SCL
CLK
V
SS(LCD)
V
LCD