SPEC NO YM2232C REV NO. : YM2232C : 22x32 SED52 LED : Dexun Zou HCC : Jingxi Yang : 22.8
目 录 ( 一 ) 基本特性 () ( 二 ) 限定参数 () ( 三 ) 直流特性 (2) ( 四 ) 交流特性 (2) ( 五 ) 机械尺寸图 (3) ( 六 ) 原理图 (3) ( 七 ) DDRAM 地址表 (4) ( 八 ) 指令表 (4) ( 九 ) 应用举例 (5)
一. 基本特征. 显示特性 () STN 正 模式 ; (2) 显示颜色 : 绿底兰字 ; (3) 显示角度 :6 点钟直视 ; (4) 驱动方式 :/32 Duty,/6 Bias 2. 机械特性 () 外观尺寸 : 见外观图 ; (2) 点阵 :22 32 点 ; (3) 点尺寸 :.36(W).36(H) (MM); (4) 点间距 :.4(W).4(H) (MM) 3. 引脚特性 : 管脚号管脚名称 LEVER 管脚功能描述 VDD +3 5V 电源电压 2 VSS V 电源地 3 VLCD -- LCD 外接驱动负电压 4 RES H/L 复位信号 ( 低电平有效 ) 5 E H/L 读写使能信号 6 E2 H/L 读写使能信号 ) 7 R/W H/L 读写选择信号 D/I= H, 表示 DB7~DB 为显示数据 8 A H/L D/I= L, 表示 DB7~DB 为显示指令数据 9 DB H/L 数据线 DB H/L 数据线 DB2 H/L 数据线 2 DB3 H/L 数据线 3 DB4 H/L 数据线 4 DB5 H/L 数据线 5 DB6 H/L 数据线 6 DB7 H/L 数据线 二. 限定参数 : Item Symbol Standard Value Unit Condition Power supply voltage VDD ~+7. LCD driving voltage VDD~VLCD ~+2. V Input voltage VIN VND VIN VDD Operating temperature range Top ~+4 Storage temperature range Tst -~+6 No condition
三. 直流特性 : (Ta=~4,VDD=2.7~4.5V) Item Symbol Standard Value MIN TYP MAX Unit Power Supply VDD 2.4 5. 6. V LCD Driving Voltage VLCD -- -- V Input High Voltage VIH.8VDD VDD V Output High Voltage VOH.5VDD V Input Low Voltage VIL GND.2VDD V Output Low Voltage VOL.VDD V Power Supply Current IDD -- 24 ua I/ Leak Current IL -3. 3. ua Stand-by Current IDDQ.5. ua 四. 交流特性 : Signal Parameter Symbol MIN MAX Unit Condition System cycle time Tcyc 2 -- ns A,/RW Address setup time Taw 4 -- ns Address hold time Tah 2 -- ns Data setup time Tds 6 -- ns Data hold time Tdh 2 -- ns D~D7 Output disable time Tch 2 2 ns Access time Tacc -- 8 ns CL=p F E Enable pulse width(read) 2 -- Tew Enable pulse width(write) 6 -- ns Input wave width rise time Tr -- 5 ns Bus Read /Write Operaion Sequence 2
五. 机械尺寸图 : 六. 原理图 : 七.DDRAM 地址表 3
Page Data Com No Drive D : 2 : : D7 22 X 6 PLXELS : D : : 3 : : 5 Slave D7 22 X 6 PLXELS D : : : 6 D7 22 X 6 PLXELS : D : : : : 3 Master D7 22 X 6 PLXELS Column ADC= H 3C H 3C Addr Seg No 6 6 Drive Slave Master 八. 指令表 : INSTRCTI CODE ON R/W D/I D7 D6 D5 D4 D3 D2 D D DISPLAY ON/OFF Display Start Line Page Address set Column (seg) Address set Status Read / Display start Line ( 3) PAGE: (~3) B u s y A D C ON / OFF Column address(~79) R S T FUNCTION Switch the entire display ON or OFF,regardless of the display RAM s Data or the internal status. : ON : OFF Determines the line of RAM data to be displayed at the display s top line (COM) Sets the page of the Display in the Address register(x address) Sets the column of the Display in the column address register(y address) Read status Busy :insternal operation :Ready ADC :Rightward output :Leftward RST :Reseting :Normal ON/OFF :Display off :Display on 4
Write Display Data Read Display Data ADC Select Static Drive ON/OFF Duty Ratio Select Read Modify Write End Reset Power Save(dual command) Write data Writes the data on the Data bus to RAM Reads data from the Read data Display RAM onto the Data BUS / Determine the clockwise or Counterclockwise reading of the display Data RAM : Clockwise : Counterclockwise / Select the dynamic or static Driving. :Static driving : Dynamic driving / Select the duty ratio :/32 duty :/6 duty Increment the column Address register when writing. But no-change when reading. Release from the Read Modify Write Mode. Set the Display Start Line Register to st line, column Address count to and Page Add. Resister to. Set the power save mode by selecting display off and static driving on 九. 应用举例 YM2232C 与单片机 83 的一种接口如图 5 所示 :(VDD=+5V) 5
利用图 5 举例介绍编程实例 ORG H INITM:MOV A,#E2H MOV A,#AEH MOV A,#A4H MOV A,#A9H MOV A,#AH MOV A,#EEH MOV A,#H MOV A,#CH MOV A,#AFH ;DISPLAY * MOV R2,#B8H DIS2:MOV A,R2 MOV A,#H MOV R,#FH DIS:MOV A,#55H MOV A,#AAH ;RESET ;OFF DISPLAY ;OFF STATIC DRIVE ;SELECT /32 DUTY ;ADC SELECT RIGHTWARS OUTPUT ;READ MODIFY WRITE OFF ;COLUMN ADDRESS SET ;SET DISPLAY START LINE ;ON DISPLAY 6
DJNZ R,DIS INC R2 CJNE R2,#BCH,DIS2 MOV A,#AFH ;DISPLAY 横条 MOV R2,#B8H DIS3:MOV A,R2 MOV A,#H MOV R,#3DH DIS4:MOV A,#55H LCALL OUTMD LCALL OUTSD DJNZ R,DIS4 INC R2 CJIE R2,#BCH,DIS3 MOV A,#AFH ;DISPLAY 竖条 MOV R2,#B8H DIS5:MOV A,R2 MOV A,#H MOV R,#EH DIS6:MOV A,#H 7
MOV A,#FFH DJNZ R,DIS6 MOV A,#3CH MOV A,#H INC R2 CJNE R2,#BCH,DIS5 MOV A,#AFH ;DISPLAY 汉字 两只黄鹂鸣翠柳一行白鹭上青天 INITMC:MOV DPTR,#CHINESE MOV R #H MOV B,#B8H DISPWORDM:PUSH B MOV A,B LCALL OUTST MOV A,#H MOV R2 #7AH DISPWORD:MOV A,R MOVC A,@A+DPTR LCALL OUTMD INC DPTR DEC R2 CJNE R2,#3DH,DISPWORD MOV A,#H LCALL OUTST DISPWORD2:MOV A,R MOVC A,@A+DPTR LCALL OUTSD INC DPTR DJNZ R2,DISPWORD2 8
MOV R,#H POP B INC B MOV A,B CINZ A,#BCH,DISPWORDM AJMP INITM MS4: MOV R7,#E8H MS2: MOV R6,#FFH MS: DJNA R6,MS DJNZ R7,MS2 RET ;OUT INSTRCTION TO MASTER 645 OUTMI:PUSH DPH PUSH DPL MOV DPTR,#6H MOVX @DPTR,A POP DPL POP DPH RET ;OUT INSRCTION TO SLAVE 645 OUTSI:PUSH DPH PUSH DPL MOV DPTR,#5H MOVX @DPTR,A POP DPL POP DPH RET ;OUT DATA TO MASTER 645 OUTMD:PUSH DPH PUSH DPL MOV DPTR,#EH MOVX @DPTR,A POP DPL POP DPH RET 9
;OUT DATA TO SLAVE 645 OUTSD:PUSH DPH PUSH DPL MOV DPTR,#DH MOVX @DPTR,A POP DPL POP DPH RET CHINESE:;(PAGE) DB H,H DB H,8H,8H,8H,8H,8H,8H,8H,8H,8H,8H,8H,8H,8H,COH,8H, DB,,H,88H,C4H,23H,4H,42H,42H,42H,42H,42H,C2H,43H,62H,4H, DB,,,F8H,8H,CH,OAH,9H,8H,8H,8H,8H,8H,FCH,8H,, DB,8H,EEH,8AH,OFAH,AAH,AEH,8H,24H,E3H,B6H,AAH,B6H,E2H,2H,2H, DB,,,,,,,,FFH,2H,2H,2H,3H,2H,,, DB,4H,44H,54H,54H,54H,54H,54H,7FH,54H,54H,54H,54H,56H,44H,4H, DB,4H,42H,42H,42H,42H,42H,42H,FEH,42H,42H,42H,42H,43H,62H,4H, B ;(PAGE) DB, B,,,,,,,,,,,,,,,, DB,2H,H,,FFH,,,,,,4H,8H,7FH,,,, DB,,,7FH,2H,2H,2H,2H,2H,2H,2H,2H,2H,7FH,,, DB,,4H,4H,5H,52H,53H,56H,5AH,52H,5AH,56H,9H,9H,78H,H, DB,4H,4H,4H,4H,4H,4H,4H,7FH,4H,4H,4H,4H,4H,6H,4H, DB,,,,FFH,5H,5H,5H,5H,5H,55H,95H,7FH,,,, DB,8H,8H,4H,2H,H.CH,3H,,3H,CH,H,2H,4H,CH,4H, DB ;(PAGE2) DB, DB,2H,2H,F2H,2H,2H,FEH,2H,2H,2H,FEH,2H,2H,F2H,3H,2H, DB,,,,FCH,4H,4H,4H,4H,4H,4H,4H,FEH,4H,,, DB,2H,2H,24H,24H,24H,3FH,24H,E4H,24H,3FH,24H,24H,24H,3H,2H, DB,4H,E4H,24H,E4H,4H,E4H,26H,E4H,,FCH,6H,55H,84H,7CH,, DB,,FCH,4H,4H,FCH,4H,,FCH,6H,5H,44H,84H,7EH,4H,, DB,,4H,4H,55H,C9H,4H,5FH,6H,4H,55H,C9H,4H,5FH,4H,, DB,H,DH,FFH,9H,H,FEH,2H,2H,F9H,,FEH,2H,2H,FFH,2H, DB ;(PAGE3) DB, DB,,,FFH,8H,4H,3H,4H,8H,4H,3H,44H,98H,7FH,,, DB,,8H,4H,23H,H,9H,H,H,H,9H,H,23H,6H,CH,,
DB,,8H,8H,5FH,55H,35H,5H,FH,5H,35H,35H,5FH,4H,8H,, DB,,7FH,2H,7FH,,7FH,2H,7FH,H,3H,2H,AH,52H,82H,7EH, DB,,OFH,4H,4H,FH,H,H,3H,2H,2H,AH,52H,82,7FH,2H, DB,8H,8H,AH,9H,8H,9H,AH,FCH,AH,9H,8H,9H,AH,8H,8H, DB,H,,FFH,,H,8FH,44H,22H,FH,,FFH,8H,H,FH,, DB