參數(shù)資料
型號: MC68HC05CL48
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 1.802 MHz, MICROCONTROLLER, PQFP112
封裝: TQFP-112
文件頁數(shù): 143/145頁
文件大?。?/td> 673K
代理商: MC68HC05CL48
June 11, 1997
GENERAL RELEASE SPECIFICATION
MC68HC05CL48
LCD DRIVER
MOTOROLA
REV 2.0
12-1
SECTION 12
LCD DRIVER
The LCD driver module supports a 45 frontplanes by 16 backplanes or a 53
frontplanes by 8 backplanes display. This allows a maximum of 720 LCD
segments to be driven. Each segment is controlled by a corresponding bit in the
LCD RAM. On reset or on power-up, the drivers are disabled via a Display on
(DISON)
bit in the LCD Control (LCDCTR) register. Figure 12-1 shows a block
diagram of the LCD subsystem.
Figure 12-1. LCD Driver Block Diagram
8
13
Internal signals
BP[0:7]
Display RAM
LCD data latch
FP[0:44]
Internal Data bus
Internal Address bus
Voltage
Generator
45X16
Segment driver
BP[8:15]/
FP[45:52]
VLCD
V0
V1
V2
V3
V4
Control
Logic
Backplane
Driver
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