參數(shù)資料
型號: HT9580
廠商: Holtek Semiconductor Inc.
英文描述: Character Pager Controller
中文描述: 字符傳呼機(jī)控制器
文件頁數(shù): 59/63頁
文件大?。?/td> 444K
代理商: HT9580
Application Note
The LCD_CTRL and LCD_CMD registers are used to control the LCD Drivers. The following exam-
ple shows how to initiate the MC141803 LCD driver.
The following bit settings are used for the LCD_CTRL register.
; ************
; * LCD CONTROL *
; ************
chip1
SET
7
; select HD66410 series LCD driver 1:HD; chip0 don t care
chip0
SET
6
; select SED15X (KSX)/MC141X series LCD driver 0:SED, 1:MC
clk
SET
5
; LCD clock output selection
; Just for MC141X series
cmod
SET
4
; enable/disable LCD_CL
cs1
SET
3
; control master LCD driver chip select
cs0
SET
2
; control slave LCD driver chip select
a0
SET
1
; Data/Command select 1:display data on D0~D7
;Data/Command select 0:display control data on D0~D7
rw
SET
0
; LCD Read/Write input 0:WRITE 1:READ
LCDCT
EQU 17h
; LCD Control register
LCDCM
EQU 18h
; LCD Command register
The following three macros define three different modes including LCD COMMAND WRITE ,
LCD DATA WRITE and LCD DATA READ modes.
; ***************************
; LCDM COMMAND MODE
; LCD_A0=0 command mode
; LCD_WRB=0 write mode
; COMMAND store to ACC
; ***************************
LCD_C
MACRO
RMB
a0, LCDCT
RMB
rw, LCDCT
STA
LCDCM
SMB
rw, LCDCT
ENDM
HT9580
59
April 28, 2000
Preliminary
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