RAiO RA8815 128x33 Character/Graphic LCD Driver Specification Version 2.2 July 1, 2006 RAiO Technology Inc. @Copyright RAiO Technology Inc. 2005, 2006 RAiO TECHNOLOGY INC. 1/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver Update History Version Date 1.0 November 26, 2004 1.5 June 23, 2005 Description First Release Modify the sequence of signals EL_CHRG and EL_DCHG. Add Table 8-1：Bump Szie and Pitch Update the Power Range and Table 9-2. Modify the description of PBK_EN of REG[13h]BLTR. 1.7 September 1, 2005 Modify the description of AUTO)SCR of REG[0Eh]SCCR. Modify Section 9-3-2 Serial Interface, the unit of Access Time should be μs. Modify the Figure A-7 and A-8：ITO Layout Example. 2.0 November 11, 2005 Update Figure 6-29 Modify Figure 6-15 and Figure 6-16: Memory Write/Read on 2.1 January 10, 2006 6800(8-Bit) I/F. Modify Table 6-2: Power Circuit Setup Modify Table 8-1：Bump Size and Pitch 2.2 July 1, 2006 RAiO TECHNOLOGY INC. Modify Figure 8-2：Gold Bump PAD Dimension Modify Figure 6-27: 4x5 Key Matrix Curcuit 2/63 www.raio.com.tw RA8815 Preliminary Version 2.2 Chapter 1. 2. 3. 4. 128x33 Character/Graphic LCD Driver Contents Page General Description ............................................................................ Feature ............................................................................................... Block Diagram ..................................................................................... Pin Definition ...................................................................................... 5 5 5 6 4-1 MPU Interface ...............................................................................................................................................6 4-2 LCD Panel Interface .....................................................................................................................................7 4-3 Clock and Power ..........................................................................................................................................8 4-4 Misc. ..............................................................................................................................................................8 5. Registers Description ......................................................................... 10 5-1 Register Table ........................................................................................................................................... 10 5-2 Register Contents ..................................................................................................................................... 10 6. Function Description .......................................................................... 23 6-1 MPU Interface ............................................................................................................................................ 23 6-1-1 Parallel Interface.............................................................................................................................. 23 6-1-2 Serial Interface ................................................................................................................................ 24 6-1-3 Register Read/Write ........................................................................................................................ 25 6-1-4 Memory Read/Write......................................................................................................................... 27 6-2 Memory....................................................................................................................................................... 29 6-3 System Clock............................................................................................................................................. 29 6-4 LCD Driver and Power Circuit.................................................................................................................. 30 6-4-1 Booster Circuit ................................................................................................................................. 31 6-4-2 Voltage Regulator............................................................................................................................ 32 6-4-3 Voltage Follower.............................................................................................................................. 33 6-4-4 LCD Driver....................................................................................................................................... 33 6-5 Interrupt ..................................................................................................................................................... 34 6-6 Key-Scan .................................................................................................................................................... 34 6-7 I/O Port ....................................................................................................................................................... 35 6-8 EL Signals .................................................................................................................................................. 35 6-9 ASCII Block................................................................................................................................................ 36 6-10 Power Control ......................................................................................................................................... 37 7. Display Functions .............................................................................. 38 7-1 Text Mode .................................................................................................................................................. 38 7-2 Graphic Mode ............................................................................................................................................ 38 7-3 Cursor Setting ........................................................................................................................................... 39 7-3-1 Cursor Position and Shift................................................................................................................. 39 7-3-2 Cursor Display and Blink ................................................................................................................. 39 7-3-3 Cursor Height .................................................................................................................................. 40 7-4 Display Window......................................................................................................................................... 40 7-5 Horizontal Scroll........................................................................................................................................ 41 RAiO TECHNOLOGY INC. 3/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 7-6 Vertical Scroll ............................................................................................................................................ 42 8. Pin Diagram ....................................................................................... 44 8-1 COG Pad .................................................................................................................................................... 44 8-2 Pad X/Y Coordinate................................................................................................................................... 46 9. Electrical Characteristic ..................................................................... 50 9-1 Absolute Maximum Ratings..................................................................................................................... 50 9-2 DC Characteristic ...................................................................................................................................... 50 9-3 Timing Characteristic ............................................................................................................................... 51 9-3-1 Parallel Interface.............................................................................................................................. 51 9-3-2 Serial Interface ................................................................................................................................ 52 9-3-3 Reset Interface ................................................................................................................................ 54 Appendix A. ........................................................................................... 56 A-1 COG Application....................................................................................................................................... 56 A-1-1 Basic Connection of Serial I/F......................................................................................................... 56 A-1-2 Basic Connection of Parallel I/F...................................................................................................... 57 A-1-3 FPC Connection for Other Functions.............................................................................................. 58 A-2 ITO.............................................................................................................................................................. 62 RAiO TECHNOLOGY INC. 4/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 1. General Description The RA8815 is a Dot-Matrix LCD Driver that supports both character and graphic mode. It built-in a 256Kbyte character ROM that consists of Chinese, English and ASCII fonts. The embedded 528Byte display RAM supports up to 128x33 dots LCD panel. The RA8815 also provides a scrolling buffer memory for scrolling functions. It supports up, down, left and right scrolling features, and all of the scrolling is execute by hardware. In character mode, the RA8815 supports Chinese BIG5 code or GB code. The system(MPU) does not need take a lot of time to show the Chinese font in graphic mode. It also provides small ASCII(8x8) and big ASCII(8x16) font for English character, Japanese, European and Latin. The RA8815 integrates much powerful hardware that including Contrast adjustment, 4x5 Key-Scan, eight General Purpose I/O and EL Backlight signals for EL driver. The RA8815 is a high integration chip of LCD Controller. It reduce a lot of time for system develop, and save much cost for hardware system that due to it provides many features for related LCD display application. 2. Feature Support both Character and Graphic Mode Support 8080/6800 8/4-bit Parallel Interface and 3-Wire/4-Wire Serial Interface Built-in 256KB Font ROM: Chinese, English, ASCII, Japanese, Latin, Latin-ext A, Latin-ext B Support ASCII 8x8/8x16 Half Size Font, 16x16 Full Size Chinese Font Support Maximum 128Seg x 33Com LCD Panel. 2 x 8 Chinese Fonts(16x16), or 4 x 16 English Fonts(8x8) Built-in 528 Bytes Display RAM and 354Byte Scrolling Buffer Built-in 2X~3X(Voltage Booster), Voltage Regulator, Voltage Follower Support 1/33 Duty, 1/6~1/4 Bias Panel Eight General Purpose I/O Built-in 4x5 Key-scan Circuit Support Horizontal/Vertical Scrolling Functions Built-in 256Byte SRAM for Create Font Provide Signals for EL Driver Provide 32-Steps Contrast Adjust Build-in RC Oscillator Voltage Operation: Chip 2.5~3.6V，COG Module 2.7~3.8V Package: Gold Bump Die 3. Block Diagram The RA8815 is consist of Display RAM, 256Kbyte Font ROM, Command Registers, LCD Controller, LCD Driver, Voltage Booster, Voltage Regulator, MPU Interface and Key-Scan circuit. M PU LC D P anel R A8815 EL B ack L ig h t D rive r G P IO 4 x 5 K ey Scan RAiO TECHNOLOGY INC. 5/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver Figure 3-1: System Block DB[0:7] 528bytes Display RAM + Buffer RD(EN) WR(R/W) CS MPU I/F D/C(RS) Block 256bytes CGRAM 256Kx8 Font ROM C86 LCDC Control Block BIT4 P/S Cursor Control Register KST[3..0] Key Scan Control Block & INT KIN[4..0] INT Scroll Control Scan Control Block Driver I/F IO[7..0] GPIO EL_CHRG EL_DCHG RA, RB RC Oscillator CLK_SEL EXT_CLK Voltage Regulator VREG Voltage Follower VREF Voltage Booster RST Test & Power Circuit TEST[2..0] FG S[1:0] 128 Segment Drivers C[2:1]P C[2:1]M V0~V4 VLCD SEG0~SEG127 33 Common Drivers COM0~COM31 COMS_A[1:0] COMS_B[1:0] Figure 3-2: Internal Block 4. Pin Definition 4-1 MPU Interface Pin Name I/O DB[7..0] DB0: SCK DB1: SDA/SDO DB2: RS/SDI I/O DB3: CS DB[7:6]: SMOD Description Data Bus When the MPU uses parallel mode and 8-bit then all of the DB[7:0] are valid. When use 4-bit then only DB[4:0] are valid, and DB[7:4] have to keep floating. When P/ S is “0”, then the interface between MPU and RA8815 is Serial Mode. The pins DB[7:6](SMOD[1:0]) are used to select which serial mode: SMOD: Serial Mode ----------------------------------------------------------------0 X : 3-Wire, SCK, SDA, CS are used. 1 0 : 4-Wire, SCK, SDA, RS, CS are used. 1 1 : 4-Wire, SCK, SDO, SDI, CS are used. RAiO TECHNOLOGY INC. 6/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver In serial mode, all of the related signals are defined by DB[3:0]: SCK(DB0) : Serial Clock. SDA(DB1) : Bi-direction Mode Serial Data. SDO(DB1) : Data Out. RS(DB2) : Memory/Register Cycle Select. SDI(DB2) : Serial Data In. CS (DB3) : Chip Select, active low. The unused pin must keep NC for serial mode. Read Control or Enable RD EN WR R/ W I When use 8080 series interface, RD is the read signal and active low. When use 6800 series interface, EN is the Enable signal and active high. This pin must keep NC for serial mode. Write Control or Read-Write Control When use 8080 series interface, WR is the write signal and active low. I When use 6800 series interface, this pin is R/ W , active high for read cycle and active low for write cycle. This pin must keep NC for serial mode. Data/Command Select or Register Select) When use 8080 series interface, this is Data or Command signal. When D/ C RS I CS I INT O C86 I BIT4 I P/ S I D/ C is “0”, means Register Cycle(or Command Cycle). When D/ C is “1”, means Data Access Cycle(Data Cycle). When use 6800 series interface, this is the RS signal. When RS is “0”, means Register Cycle and “1” means Data Access Cycle. This pin must keep NC for serial mode. Chip Select This is a chip enable for RA8815. This pin must keep NC for serial mode. Interrupt Signal This is an interrupt output for MPU. Active low。 MPU Select C86 = 0 The MPU interface is 8080 series. C86 = 1 The MPU interface is 6800 series(Default). This pin must keep NC for serial mode. Data Bit Select BIT4 = 0 The parallel mode is use 8-bit data bus. BIT4 = 1 The parallel mode is use 4-bit data bus(Default). This pin must keep NC for serial mode. Parallel/Serial Select P/ S = 0 DB[7:6]. The MPU interface is serial mode(Default). See the setting of P/ S = 1 The MPU interface is parallel mode. 4-2 LCD Panel Interface Pin Name SEG0 ~ SEG127 COM0 ~ COM31 I/O O O RAiO TECHNOLOGY INC. Description Segment Signals for Panel Common Signals for Panel 7/63 www.raio.com.tw RA8815 Preliminary Version 2.2 COMS_A[1:0] COMS_B[1:0] DUM_L DUM_R 128x33 Character/Graphic LCD Driver O Icon Common Signals for Panel O Dummy PAD 4-3 Clock and Power Pin Name I/O RA, RB I V0~V4 O C1P, C1M I C2P, C2M I VLCD O VREF I VREG I CLK_SEL I EXT_CLK I VDD VDDP GND GNDP Description Resister Input These are used to connect a resistor for internal oscillator. Voltage Source of LCD Driver The relationship of the power is VLCD>VREG≧V0≧V1≧V2≧V3≧V4≧ VSS。 Capacitor Input These are used to connect a capacitor for internal Booster. Capacitor Input These are used to connect a capacitor for internal Booster. Booster Output Reference Voltage Input This is the refeence voltage input when use an external regulator. Voltage Regulator Output When the internal voltage regulator is disable, this pin is connect to VLCD and used to generate V0~V4. Clock Select This pin is used to select the clock source. When CLK_SEL “1”, the clock is generated by internal oscillator and the external resistor that connect on RA and RB. When CLK_SEL is “0”, the system clock is drive by external pin - EXT_CLK. External Clock When CLK_SEL is “0”, this pin is the external clock input. When CLK_SEL is “1”, this pin do not used and has to connect VDD or GND. P VDD Power P Ground 4-4 Misc. Pin Name I/O KST[3..0] O KIN[4..0] I IO[7..0] EL_CHRG EL_DCHG I/O O O RST I Reset TEST[2:0] S[1:0], FG I Test Pins These pins must keep NC for normal mode. RAiO TECHNOLOGY INC. Description Key Strobe Output Key Data Input The unused pins keep floating(NC). General Purpose I/O EL Charge Signal EL Discharge Signal 8/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver Table 4-1: Pin Definition of Parallel/Serial Mode of MPU Parallel Mode Pin Name I/O 8080 Serial Mode 6800 8Bit 4Bit 8Bit 4Bit 3-Wire 4-Wire (A-Typ) 4-Wire (B-Typ) DB7 DB6 DB5 DB4 I/O I/O I/O I/O DB7 DB6 DB5 DB4 ----- DB7 DB6 DB5 DB4 ----- 0 X --- 1 0 --- 1 1 --- DB3 I/O DB3 DB3 DB3 DB3 DB2 DB1 DB0 I/O I/O I/O DB2 DB1 DB0 DB2 DB1 DB0 DB2 DB1 DB0 DB2 DB1 DB0 CS -SDA SCK CS RS SDA SCK CS SDI SDO SCK RD , EN I RD RD EN EN -- -- -- WR , R/ W I WR WR R/ W R/ W -- -- -- D/ C , RS I D/ C D/ C RS RS -- -- -- CS C86 BIT4 I CS CS CS CS -- -- -- I I 0 0 0 1 1 0 1 1 --- --- --- P/ S I 1 1 1 1 0 0 0 “X” : 0 or 1(Do not care). “--" : Not used, keep floating(NC). RAiO TECHNOLOGY INC. 9/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 5. Registers Description 5-1 Register Table Table 5-1: Register Table ID Name D7 D6 D5 D4 D3 D2 D1 D0 Description 0 DWFR B/C -- NW5 NW4 NW3 NW2 NW1 NW0 1 PWRR SRST MCLR -- -- KWK IOWK DOFF_Z SLP 2 SYSR LS3 LS2 LS1 LS0 GB_EN -- RS1 RS0 3 MWMR BIEN ASCS BOLD INV MD1 MD0 Wave Form Select Power Control System Setting Memory Mode BMOD1 BMOD0 BLK CR X4 X3 X2 X1 X0 Y4 Y3 Y2 Y1 Y0 IRE KF1/ KSTB1 KF0/ KSTB0 KSD3 KSD2 KSD1 KSD0 AKD4 AKD3 AKD2 AKD1 AKD0 CURCR H3 5 X-CUR -- -- X5 6 Y-CUR -- Y6 Y5 KEYR KSB KDB1 KDB0 SIRQ KSTB1 KSTB0 KSD4 SIRQ AKD6 AKD5 KSDR H1 -- 4 7 H2 CUR_E N H0 KSTB_S K_AUTO EL 8 SWSXR -- -- -- SSX4 SSX3 SSX2 9 SWSYR -- -- SSY5 SSY4 SSY3 SSY2 A SWRXR -- -- -- SRX4 SRX3 SRX2 B SWRYR -- -- SRY5 SRY4 SRY3 SRY2 C SCOR SL7 SL6 D ASCR SPD3 SPD2 E SCCR F ISR 10 CSTR 11 DRCR_A 12 DRCR_B 13 BLTR 14 IODR 15 IODAR 16 ELCR 17 CGMI 18 CGMD SL5/SR5 SL4/SR4 SL3/SR3 SL2/SR2 SPD1 SCR_IM SCR_IM SCR_M D1 D0 D SPD0 SBUF STP3 STP2 Cursor Control Cursor X Position Cursor Y Position Key-scan Control Key-scan Data X-Scroll Start SSY1 SSY0 Y-Scroll Start SRX1 SRX0 X-Scroll Range SRY1 SRY0 Y-Scroll Range SL1/SR1 SL0/SR0 Scroll Unit STP1 STP0 Auto Scroll Control SSX1 SSX0 SCR_DI SCR_DI SCR_IN AUTO_S Scroll Control R1 R0 TEN CR Interrupt Status BR2 BR1 BR0 CT4 CT3 CT2 CT1 CT0 Contrast BOFF EN_R EN_G ROFF -TMPS CDIR SDIR Driver Control CK_BS1 CK_BS0 RR2 RR1 RR0 HD2 HD1 HD0 Driver Control BLK_EN PBK_EN -GINV BLT3 BLT2 BLT1 BLT0 Blink Setting OE7 OE6 OE5 OE4 OE3 OE2 OE1 OE0 IO Port Direction IOD7 IOD6 IOD5 IOD4 IOD3 IOD2 IOD1 IOD0 IO Port Data EL_EN ---ELT3 ELT2 ELT1 ELT0 EL Control -----UMI2 UMI1 UMI0 Create Font Select CGMD7 CGMD6 CGMD5 CGMD4 CGMD3 CGMD2 CGMD1 CGMD0 Create Font Data BF -- -- -- -- SCR_I KI BI 5-2 Register Contents The RA8815 accept two Command Cycle from MPU. One is Register Cycle(RS = 0) and the other is Memory Cycle(RS = 1). The MPU has to assign the register number of RA8815 that before access these registers. Therefore, the first byte that MPU pass to RA8815 will be store into Index Register. And RA8815 will assume the next byte is read from or write into the register which Index Register assigned. RAiO TECHNOLOGY INC. 10/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver IR (Index Register) RW 0 RS 0 DB7 0 DB6 0 DB5 0 DB4 ID4 DB3 ID3 DB2 ID2 DB1 ID1 DB0 ID0 ID[4:0]: These bits are used to store the register number that MPU want to access on next cycle. The ID[[4:0] provide 32 register number(00h~1Fh). But currently the RA8815 only used 25 registers (00h~18h). All of these registers are be initially to “00h” after RESET. Memory Data (RAMD) RW 0/1 RS 1 DB7 D7 DB6 D6 DB5 D5 DB4 D4 DB3 D3 DB2 D2 DB1 D1 DB0 D0 If RS is “1”, It means MPU execute the Memory Cycle for RA8815. When RW is “0”, MPU will write data to Display RAM or ICON RAM that according the setting of MD[1:0](REG[03h] bit1-0). For example, MPU write Big5/CG code to memory in Text Mode, or write bitmap data to display memory in Graphic mode. When RW is “1”, the MPU read data from different paths of RA8815. It depend on the operation mode as following: 1. Full Size Text Mode: From up to down of Left side(16-Bytes), and then up to down of Right side(16-Bytes), total is 32-Bytes. 2. Half Size Text Mode: From up to down, total 16-Bytes data. 3. Small ASCII Text Mode: From up to down, total 8-Bytes data. 4. Graphics Mode: From left to right, each reading is one byte(8-Pixels). [00h] Driver Waveform Register (DWFR) RW 0 DB7 B/C DB6 -- DB5 NW5 DB4 NW4 DB3 NW3 DB2 NW2 DB1 NW1 DB0 NW0 B/C: Select waveform of drive. 0 B-Type waveform. 1 C-Type waveform. NW[5:0]: These bits are used to assign the Segment/Row number that when internal Frame signals can to it and want to change the state. This function support only when B/C is “1” (C-Type wave form). [01h] Power Control Register (PWRR) RW 0 DB7 SRST DB6 MCLR DB5 -- DB4 -- DB3 KWK DB2 IOWK DB1 DOFF_Z DB0 SLP SRST: S/W reset. 1 All of the register will be initialed again except the display memory. 0 No action. MCLR: Clear memory. 1 Clear the Display RAM data to “00h”. 0 No action. If both MCLR and SRST set to ”1” then RA8815 will clear the display RAM and then Reset. KWK: Key-scan wake up Setting. 0 Key-scan Wake up function off. 1 Key-scan wake up function on. IOWK: I/O wake up Setting. 0 IO port wake up function off. 1 IO port wake up function on. DOFF_Z: Display off. 0 LCD driver and display off. 1 LCD driver and display on. SLP: Sleep mode setting. 1 Enter sleep mode, and turn off the clock. 0 RA8815 wake up. This bit was clear to “0” when wake up from I/O port or Key-scan. [02h] System Register (SYSR) RW 0 DB7 LS3 DB6 LS2 DB5 LS1 DB4 LS0 DB3 GB_EN DB2 -- DB1 RS1 DB0 RS0 LS[3:0]: Setup the segment number. The maximum segment of RA8815 is 128. RAiO TECHNOLOGY INC. 11/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver LS3 LS2 LS1 LS0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 1 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 : : : 1 Line No. 16 32 48 64 80 96 112 128 Reserved Reserved 1 1 1 Reserved GB_EN: Setup the GB code or BIG5 code. 1 GB Code. 0 BIG5 Code. RS[1:0]: Setup the common number. The maximum common of RA8815 is 32(Not including Icon). RS1 RS0 Row No. 0 0 1 1 0 1 0 1 16 32 Reserved Reserved [03h] Memory Write Mode Register (MWMR) RW 0 DB7 BMOD1 DB6 BMOD0 DB5 BIEN DB4 ASCS DB3 BOLD DB2 INV DB1 MD1 DB0 MD0 BMOD[1:0]: Setup the range for memory written. BMOD1 BMOD0 Memory Range of Write 0 0 1 0 1 x Normal Display Range Display Range + Scroll-Buffer Scroll-Buffer BIEN: Busy interrupt control. 1 Busy interrupt enable (After write data to memory). 0 Busy interrupt disable. ASCS: Select ASCII Table。0 Select ASCII Table-1. 1 Select ASCII Table-2. Refer Chapter 6-9. BOLD: Select Bold Font to write Display RAM. 0 Normal font. 1 Bold font. INV: Select reverse font to write Display RAM. 0 Normal font. 1 Reverse font. MD[1:0]: Select operation mode for Display RAM. RAiO TECHNOLOGY INC. MD1 MD0 Operation Mode 0 0 1 0 1 0 Graphic Mode Small ASCII (8X8) Big ASCII(8X16) 12/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 1 1 Full Size(16X16) When Full-Size mode(MD[1:0] = 11), if the first byte data is less than 80h, RA8815 will assume it’s an ASCII code and show the Big ASCII font. But if want to show the Big ASCII font that code is large than 80h, then the operation mode has to change to Big ASCII mode(MD[1:0] = 10). [04h] Cursor Control Register (CURCR) RW 0 DB7 H3 DB6 H2 DB5 H1 DB4 H0 DB3 -- DB2 BLK DB1 CR DB0 CUR_EN H[3:0]: Setup the cursor height. H3 H2 H1 H0 Height (Pixel) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 In Small ASCII mode(8X8), the H3 is reserved. The setting of cursor height is only form 1~8pixels(H[3:0] = x000b~x111b). BLK: Cursor blink select. 0 No Blinking. 1 Cursor Blinking. CR: Cursor return. 0 No action. 1 Cursor return. Cursor will return to the left of panel. CUR_EN: Cursor display select. 0 Cursor hides. 1 Cursor Display. [05h] Cursor Position Register of X (X-CUR) RW 0 DB7 -- DB6 -- DB5 X5 DB4 X4 DB3 X3 DB2 X2 DB1 X1 DB0 X0 X[5:0]: Setup the cursor position on segment. The unit is 8-pixels. Because maximum segment of RA8815 is 128-pixels, therefore the range of X[5:0] is 0~Fh. When the X[5:0] is 20h or 21h, then the cursor position is assign to horizontal Scroll-Buffer. RAiO TECHNOLOGY INC. 13/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver [06h] Cursor Position Register of Y (Y-CUR) RW 0 DB7 -- DB6 Y6 DB5 Y5 DB4 Y4 DB3 Y3 DB2 Y2 DB1 Y1 DB0 Y0 Y[6:0]: Setup the cursor position on common. The unit is 1-pixels. Because maximum common of RA8815 is 32-pixels, therefore the range of Y[6:0] is 0~1Fh. When the Y[6:0] is 40h~4Fh, then the cursor position is assign to vertical Scroll-Buffer. When Y[6:0] is 50h then cursor is located at COMS(Icon). [07h] Key-scan Control Register (KEYR) (Write Only) RW DB7 DB6 DB5 0 KSB KDB1 KDB0 DB4 DB3 KSTB_SE K_AUTO L DB2 IRE DB1 KF1/ KSTB1 DB0 KF0/ KSTB0 KSB: Key-scan control. 0 Key-scan disable. 1 Key-scan enable. KDB[1:0]: Setup the de-bounce times of Key-scan in Auto-Mode. The one time means the time that Keyscan for one loop. KDB1 KDB0 Times 0 0 1 1 0 1 0 1 8 16 32 64 KSTB_SEL: In non-Auto-mode, 0 the DB[1:0] are defined as KF[1:0]. 1 The DB[1:0] are defined as KSTB[1:0] 。In Auto-Mode, the DB[1:0] is also defined as KF[1:0]. K_AUTO: Setup the scan mode. 1 Auto-Mode. The RA8815 will auto detect the key and store the code into AKD[6:0] for MPU reading. 0 Non-Auto-Mode. The RA8815 will not store the code to AKD[6:0]. The MPU has to read data from KSTB[1:0] and KSD[4:0] to make sure which key was pressed. Of course, MPU could know if not only one key pressed at the same time In Non-AutoMode. IRE: Setup the Interrupt of Key-scan. 0 Hardware Interrupt disable while key was pressed. 1 Generate hardware interrupt while key was pressed. KF[1:0]: Setup the frequency of Key-scan. KF1 KF0 Pulse Width Key-scan Cycle Time (4x5) 0 0 1 1 0 1 0 1 256us 512us 1.024ms 2.048ms 1.024ms 2.048ms 4.096ms 9.182ms KSTB[1:0]: In Non-Auto-Mode, These two bits are used to setup the strobe for the Row of key matrix. If any key pressed, the MPU can read data from KSTB[1:0] and KSD[4:0] to make sure which key was pressed. The strobe data are also readable from Bit[6:5] of register KSDR. [07h] Key-scan Data Register (KSDR) (Read Only) If K_AUTO = 0: RW DB7 DB6 DB5 DB4 1 SIRQ KSTB1 KSTB0 KSD4 RAiO TECHNOLOGY INC. 14/63 DB3 KSD3 DB2 KSD2 DB1 KSD1 DB0 KSD0 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver SIRQ: Indicate the interrupt of Key-scan. This bit was clear when REG[0Fh] bit 1 write “0”. KSTB[1:0]: These two bit show which pin of KST[3:0] active. KSD[4:0]: KIN Return Data. These bits are used in Non-Auto-Mode. The MPU can read data from KSTB[1:0] and KSD[4:0] to make sure which key was pressed. If K_AUTO = 1: RW 1 DB7 SIRQ DB6 AKD6 DB5 AKD5 DB4 AKD4 DB3 AKD3 DB2 AKD2 DB1 AKD1 DB0 AKD0 SIRQ: Indicate the interrupt of Key-scan. This bit was clear when REG[0Fh] bit 1 write “0”. AKD[6:0]: Scan Data(Code). In Auto–Mode, the MPU read data from this register to know the status of key matrix. The RA8815 supports 4x5 key matrix -- total 20Keys. The BCD number of 0~19h are mapping to these keys. AKD[6:0] Scan Data 0~19h 20~39h 42 Other Key No. Input Long Key No. Input Key Release Reserved [08h] Scroll Window Start X Register (SWSXR) RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 ---SSX4 SSX3 SSX2 SSX1 SSX0 SSX[4:0]: When the shift direction is from right to left, then these bits are used to setup Segment (X) start point of scroll window. The unit is half size width(8-Pixels). Note: When the shift direction is from left to right, these bits have to set 0. [09h] Scroll Window Start Y Register (SWSYR) RW 0 DB7 -- DB6 -- DB5 SSY5 DB4 SSY4 DB3 SSY3 DB2 SSY2 DB1 SSY1 DB0 SSY0 SSY[5:0]: Setup the Common (Y) start point of scroll window. The unit is pixel. [0Ah] Scroll Window Rang X Register (SWRXR) RW 0 DB7 -- DB6 -- DB5 -- DB4 SRX4 DB3 SRX3 DB2 SRX2 DB1 SRX1 DB0 SRX0 SRX[4:0]: Setup Segment (X) offset of scroll window. The unit is half size width(8-Pixels). Note: 1. SRX must large or equal than 1, that means the minimum scroll range of X is 16 pixels. 2. The “SSX+SRX” can not exceed the range of Segment (X) of LCD panel. For example, if the panel resolution is 96x32, then SSX+SRX must less than 96/8=12. That means the maximum of “SSX+SRX” is 11. RAiO TECHNOLOGY INC. 15/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver [0Bh] Scroll Window Rang Y Register (SWRYR) RW 0 DB7 -- DB6 -- DB5 SRY5 DB4 SRY4 DB3 SRY3 DB2 SRY2 DB1 SRY1 DB0 SRY0 SRY[5:0]: Setup the Common (Y) offset of scroll window. The unit is pixel. Note: 1. SRY must large or equal than 1, that means the minimum scroll range of Y is 2 pixels. 2. The “SSY+SRY” can not exceed the range of Common (Y) of LCD panel. For example, if the panel resolution is 96x32, then SSY+SRY must less than 32. That means the maximum of “SSY+SRY” is 31. [0Ch] Scroll Offset Register (SCOR) RW 0 DB7 SL7 DB6 SL6 DB5 DB4 DB3 DB2 DB1 DB0 SL5/SR5 SL4/SR4 SL3/SR3 SL2/SR2 SL1/SR1 SL0/SR0 SL[7:0]: Setup the shift unit of horizontal scroll. The unit is pixel and active when register SCR_MD1 (REG[0Eh]bit 3) is clear to “0”. SR[5:0]: Setup the shift unit of vertical scroll. The unit is pixel and active when register SCR_MD1 (REG[0Eh]bit 3) is set to “1”. In auto scroll mode, this register is also used to setup the start position of scroll of Common or Segment. [0Dh] Auto-Scroll Control Register (ASCR) RW 0 DB7 SPD3 DB6 SPD2 DB5 SPD1 DB4 SPD0 DB3 STP3 DB2 STP2 DB1 STP1 DB0 STP0 SPD[3:0]: Setup the speed of auto scroll. SPD3 SPD2 SPD1 SPD0 Scroll Time 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 Unit 3 Units 5 Units 7 Units 17 Units 19 Units 21 Units 23 Units 129 Units 131 Units 133 Units 135 Units 145 Units 147 Units 149 Units 151 Units 1 Unit = 1 Frame Times RAiO TECHNOLOGY INC. 16/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver STP[3:0]: Setup the shift unit on auto scroll mode. STP3 STP2 STP1 STP0 Shift Pixel 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 [0Eh] Scroll Control Register (SCCR) RW 0 DB7 DB6 DB5 SCR_IM SCR_IM SCR_MD D1 D0 DB4 SBUF DB3 DB2 DB1 DB0 SCR_DI SCR_DI SCR_INT AUTO_S R1 R0 EN CR SCR_IMD[1:0]: The definition is as following and they are available at Auto–Scroll-Mode. 0X: Setup 1-pixel shift to caused interrupt(SCR_INTEN must be 1). 10: Setup 8-pixel shift to caused interrupt(SCR_INTEN must be 1) 11: Setup 16-pixel shift to caused interrupt(SCR_INTEN must be 1) SCR_MD: Scroll Mode Select. 0 Non-Auto-Scroll, the scroll offset clear to “0”. 1 Auto-Scroll Mode. SBUF: Scroll-Buffer Control. 0 Scroll-Buffer disable. The scroll will not including the Scroll-Buffer, only for display area. 1 Scroll-Buffer enable. The scroll area is including the display and Scroll-Buffer. SCR_DIR[1:0]: Select the direction of scroll. SCR_DIR1 SCR_DIR0 Direction of Scroll 0 0 1 1 0 1 0 1 Left to Right(Horizontal) Right to Left(Horizontal) Up to Down(Vertical) Down to Up(Vertical) SCR_INTEN: Setup the scroll interrupt. 0 Scroll interrupt disable. 1 In auto scroll mode, when scroll 1, 8 or 16-pixels generate an interrupt to MPU. AUTO_SCR: Auto-Scroll control. 0 Stop the Auto-Scroll. If want to close the Auto-Scroll mode or display new data on the screen, then the Bit5 - SCR_MD must clear to 0 first. 1 Auto-Scroll going. RAiO TECHNOLOGY INC. 17/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver [0Fh] Interrupt Status Register (ISR) RW 1 DB7 BF DB6 -- DB5 -- DB4 -- DB3 -- DB2 SCR_I DB1 KI DB0 BI BF: Busy Flag. 1 Display RAM is in busy(Data Write). 0 Display RAM is idle(Write complete). SCR_I: Scroll interrupt. 1 Interrupt for scroll complete，0 No scroll Interrupt. KI: Key-scan interrupt. 1 Interrupt for key pressed. 0 No Key pressed Interrupt. BI: Busy Interrupt. 1 Interrupt for the activity of writing data to display RAM completed. 0 No busy Interrupt [10h] Contrast Adjust Register (CSTR) RW 0 DB7 BR2 DB6 BR1 DB5 BR0 DB4 CT4 DB3 CT3 DB2 CT2 DB1 CT1 DB0 CT0 BR[2:0]: Setup the LCD Bias(Base on 128x33). BR2 BR1 BR0 Bias 0 0 0 0 1 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 X 1/4 1/4.5 1/5 1/5.5 1/6 1/6.5 1/7 CT[4:0]: Setup the Contrast(32 Level). Normally depend on the liquid, power and panel size to adjust the best display quality. CT4 CT3 CT2 CT1 CT0 0 0 0 0 0 0 Contrast 0 0 0 1 Light 1 1 Dark : : : 1 1 1 [11h] Driver Control Register1 (DRCR_A) RW 0 DB7 BOFF DB6 EN_R DB5 EN_G DB4 ROFF DB3 -- DB2 -- DB1 CDIR DB0 SDIR BOFF: Booster control. 1 Internal Booster enable. 0 Internal Booster disabled and used external voltage. EN_R: Reference voltage control. 1 Internal reference voltage enable for Regulator. 0 Disable the internal reference voltage. The Regulator use external reference voltage. EN_G: VREG control. 1 The VREG is generated by internal Regulator. 0 Use external VREG, and the EN_R and BOFF have to clear “0”(Off) to reduce power consumption. ROFF: Voltage Follower control. 1 Internal Voltage Follower enable for LCD Bias voltage. 0 Disable RAiO TECHNOLOGY INC. 18/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver internal Voltage Follower, and use external voltage to generate LCD Bias voltage. If use external Voltage Follower, then EN_G, EN_R and BOFF have to clear “0”(Off) to reduce power consumption. CDIR: Common sequency select. 0 Pins COM0~31 are mapping to Common 0~31. 1 Pins COM0~31 are mapping to Common 31~0. SDIR: Segment sequency select. 0 Pins SEG0~127 are mapping to Segment 0~127. 1 Pins SEG0~127 are mapping to Segment 127~0. [12h] Driver Control Register (DRCR_B) RW 0 DB7 DB6 CK_BS1 CK_BS0 DB5 RR2 DB4 RR1 DB3 RR0 DB2 HD2 DB1 HD1 DB0 HD0 CK_BS[1:0]: Select the clock of Booster. Assume the RC oscillator clock is 45KHz. CK_BS1 CK_BS0 Clock of Booster 0 0 1 1 0 1 0 1 SYS_CLK/2 22.5KHz SYS_CLK/4 11.25KHz SYS_CLK/6 7.5KHz SYS_CLK/8 5.625KHz RR[2:0]: Setup the Resistor Ratio of Regulator. The ratio is VREF : VREG. RR2 RR1 RR0 Resistor Ratio 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 X2 X2.5 X3 X3.5 X4 X4.5 X5 -- Note: The VREF is 1.6V. HD[2:0]: Setup the LCD driving current. Normally big panel use bigger driving current to void bad display quality. RAiO TECHNOLOGY INC. HD2 HD1 HD0 Driving Current 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 Min 19/63 Max www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver [13h] Blink Timer Register (BLTR) RW 0 DB7 DB6 BLK_EN PBK_EN DB5 -- DB4 GINV DB3 BLT3 DB2 BLT2 DB1 BLT1 DB0 BLT0 BLK_EN: Blinking. 0 Blinking off. 1 Blinking on. PBK_EN: Whole or Partial Blinking selection. 0 Whole screen Blinking. 1 Partial screen Blinking. The blinking area is depending on the scroll window. That means the partial area is setting by register SWSXR, SWSYR, SWRXR and SWRYR. When the Partial Blinking off, the above four registers had better clear to 0. Note, only BLK_EN set to “1” when blink is active. GINV: Setup display reverse. 0 Normal display. 1 Display reverse. BLT[3:0]: Setup blinking time. BLT3 BLT2 BLT1 BLT0 Blink Time (Unit: Frames) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128 [14h] IO Direction Control Register (IODR) RW 0 DB7 OE7 DB6 OE6 DB5 OE5 OE[7:0]: Select the I/O port direction. 0 DB4 OE4 DB3 OE3 Input. 1 Output. DB4 IOD4 DB3 IOD3 DB2 OE2 DB1 OE1 DB0 OE0 DB2 IOD2 DB1 IOD1 DB0 IOD0 [15h] IO Data Register (IODAR) RW 0 DB7 IOD7 DB6 IOD6 DB5 IOD5 IO[7:0]: This register stores the input data of I/O port when I/O port is input mode. [16h] EL Control Register (ELCR) RW 0 DB7 EL_EN RAiO TECHNOLOGY INC. DB6 -- DB5 -- DB4 -- 20/63 DB3 ELT3 DB2 ELT2 DB1 ELT1 DB0 ELT0 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver EL_EN: EL signals output . 0 Off. 1 On. ELT[3:0]: Setup the output time of EL signals. The following table is base on the RC oscillator fix at 45KHz. The output time is longer when RC oscillator clock is slower. ELT3 ELT2 ELT1 ELT0 Output Time(Sec) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 2 4 6 8 10 12 14 16 18. 20 22 24 26 28 30 DB4 -- DB3 -- [17h] CGRAM Register (CGMI) RW 0 DB7 -- DB6 -- DB5 -- DB2 UMI2 DB1 UMI1 DB0 UMI0 UMI[2:0]: Select the create font number. The RA8815 allow user create eight 16x16 full size font. The mapping font code is FFF0h~FFF7h. UMI2 UMI1 UMI0 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 Font Code 0 1 0 1 0 1 0 1 FFF0h FFF1h FFF2h FFF3h FFF4h FFF5h FFF6h FFF7h [18h] CGRAM Data Register (CGMD) RW 0 DB7 CGMD7 DB6 CGMD6 DB5 CGMD5 DB4 CGMD4 DB3 CGMD3 DB2 CGMD2 DB1 CGMD1 DB0 CGMD0 CGMD[7:0]: This register is used to transfer or read the data of 16x16 full size font. The MPU write RAiO TECHNOLOGY INC. 21/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver continuous 32-bytes data of bit-map of 16x16 full size font into this register that after program the REG[17h]. If user want to show the self-create font, just write the two bytes font code to RA8815. RAiO TECHNOLOGY INC. 22/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 6. Function Description 6-1 MPU Interface 6-1-1 Parallel Interface The MPU interface of RA8815 supports both 8080 and 6800 series with in 4-Bit or 8-bit bus width. If the “C86” connects to GND, then the MPU is defined as 8080 type interface. If pin “C86” connects to VDD, then it’s defined as 6800 type interface. Refer to the Figure 6-2. If the pin “BIT4” connects to GND, then the bus width of MPU interface is 8-Bit. If the pin “BIT4” connects to VDD, then the bus width is 4-Bit. And only the DB[3:0] of data bus are available. 8080 MPU RA8815 D/C A0 A1-A7 IORQ VDD P/S Decoder CS C86 DB0-3(DB0-7) - D0-D3(D0-D7) RD RD WR WR RES RST BIT4 VDD or GND Figure 6-1: 8080 (4/8-Bit) MPU Interface 6800 MPU RA8815 A0 A1-A7 VMA VDD RS P/S Decoder CS C86 D0-D3(D0-D7) DB0-3(DB0-7) EN EN R/W R/W RES RST BIT4 VDD or GND Figure 6-2: 6800 (4/8-Bit) MPU Interface RAiO TECHNOLOGY INC. 23/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 6-1-2 Serial Interface The RA8815 aslo support three type serial interface. One is 3-Wires and the others are 4-Wires(AType, B-Type). This feature is control by the pin “P/ S ” and DB[7:6]. Refer to Table 4-1. In serial mode the DB[7:6] are used as SMOD[1:0] to select the different serial mode. Please also refer to Table 6-1. The Figure 6-3 to 6-5 are the interface diagram of MPU and RA8815 which in serial mode. Table 6-1 SMOD Serial Mode Interface 0 X 3-Wires. Use signals SCK, SDA and CS . 1 0 4-Wires (A-Type). Use signals SCK, SDA, RS and CS . 1 1 4-Wires (B-Type). Use signals SCK, SDO, SDI and CS . MPU RA8815 SMOD1(DB7) SMOD0(DB6) P/S IO0 SCK(DB0) IO1 SDA(DB1) IO2 CS(DB3) Figure 6-3: 3-Wires MPU interface MPU VDD RA8815 SMOD1(DB7) SMOD0(DB6) IO0 SCK(DB0) IO1 SDA(DB1) IO2 RS(DB2) IO3 CS(DB3) P/S Figure 6-4: 4-Wires(A-Type) MPU interface RAiO TECHNOLOGY INC. 24/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver MPU VDD RA8815 SMOD1(DB7) SMOD0(DB6) IO0 SCK(DB0) IO1 SDO(DB1) IO2 SDI(DB2) IO3 CS(DB3) P/S Figure 6-5: 4-Wires(B-Type) MPU interface 6-1-3 Register Read/Write The RA8815 accepts two access cycles from MPU. One is read data from register or write data to register. Another is read data from memory or write data to memory. As description of Chapter 5-2, MPU must tell the RA8815 that which register will be access. Therefore the first data that write to RA8815 is to select the register number. And the second data is the exact data that writing into or reading from this register. Because the features of RA8815 are controlled by the contents of internal registers, so if we write data to register is like to give a command to RA8815. Therefore we can say that the Register Access Cycle is same as Command Cycle. The Figure 6-6 and 6-7 show the register access timing of 8080 MPU(8-Bit) with RA8815. Figure 6-8 and 6-9 show the register access timing of 6800MPU(8-Bit) interface. Figure 6-10 to 6-12 show the register access timing of serial interface. DB[7:0] REG No. DB[7:0] DATA CS CS WR WR RD RD D/C D/C Figure 6-6: Register Wrie on 8080(8-Bit) I/F RAiO TECHNOLOGY INC. REG No. DATA Figure 6-7: Register Read on 8080(8-Bit) I/F 25/63 www.raio.com.tw RA8815 Preliminary Version 2.2 DB[7:0] 128x33 Character/Graphic LCD Driver REG No. DB[7:0] DATA CS CS R/W R/W EN EN RS RS Figure 6-8: Register Write on 6800(8-Bit) I/F REG No. DATA Figure 6-9: Register Read on 6800(8-Bit) I/F CS SDA RW RS(0) R7 R6 ………………….. R0 D7 D6 …………………. D0 SCK Register No. R/W DATA. Figure 6-10: Register Read/Write Access on 3-Wires I/F CS RS 0 SDA RW Don’t Care R7 R6 …………..…….. R0 D7 D6 ……….……………. D0 SCK Register No. R/W DATA. Figure 6-11: Register Read/Write Access on 4-Wires(A-Type) I/F RAiO TECHNOLOGY INC. 26/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver CS RW SDI SDO RS(0) R7 R6 ………………….. R0 Don’t Care WD7 WD6 ……………. WD0 RD7 RD6 ……………... RD0 SCK Register No. R/W DATA. Figure 6-12: Register Read/Write Access on 4-Wires(B-Type) I/F 6-1-4 Memory Read/Write Another cycle for MPU to RA8815 is memory Read/Write cycle. Normally it used to show information on the LCD screen. A memory writes means write a data into the mapping address that cursor located. After a memory write complete, the cursor will auto increase. And the data of next memory write will fill into the new memory address that new curser position located. Because all of the memory read/write cycles are transfer the display data, so we can abbreviate the name of Memory Access Cycle to Data Cycle. The Figure 6-13 and 6-14 show the memory access timing of 8080 MPU(8-Bit) with RA8815. Figure 6-15 and 6-16 show the memory access timing of 6800MPU(8-Bit) interface. Figure 6-17 to 6-19 show the memory access timing of serial interface. DB[7:0] DATA(n) DATA(n+1) DB[7:0] CS CS WR WR RD RD D/C D/C Figure 6-13: Memory Write on 8080(8-Bit) I/F RAiO TECHNOLOGY INC. DATA(n) DATA(n+1) Figure 6-14: Memory Read on 8080(8-Bit) I/F 27/63 www.raio.com.tw RA8815 Preliminary Version 2.2 DB[7:0] 128x33 Character/Graphic LCD Driver DATA(n) DATA(n+1) DB[7:0] CS CS R/W R/W EN EN RS RS Figure 6-15: Memory Write on 6800(8-Bit) I/F DATA(n) DATA(n+1) Figure 6-16: Memory Read on 6800(8-Bit) I/F CS SDA RW RS(1) MD7 MD6 …………….. MD0 SCK Mem. R/W DATA. Figure 6-17: Memory Read/Write Access on 3-Wries I/F CS RS 1 SDA RW Don’t Care MD7 MD6 ……….……. MD0 SCK Mem. R/W Data Figure 6-18: Memory Read/Write Access on 4-Wires(A-Type) I/F RAiO TECHNOLOGY INC. 28/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver CS SDI SDO RW Don’t Care RS(1) WD7 WD6 ……………. WD0 RD7 RD6 ……………... RD0 SCK Mem. R/W Data Figure 6-19: Memory Read/Write Access on 4-Wires(B-Type) I/F 6-2 Memory The RA8815 built-in three memory: 1. 256Kbyte Font ROM 2. 528Byte Display RAM 3. Character Generator RAM(CGRAM) The 256Kbyrte Font ROM stores bit map data of Chinese font. It also including English, Japaness, Europen, Latin(Latin-ext A, Latin-ext B) and ASCII. In text mode, RA8815 will read the bit map data from Font ROM and pass to display RAM that when RA8815 received the standard code from MPU. The LCD control citcuit will read data of display RAM continuous and send to driver circuit. So the text will show on the LCD screen. Therefore, the MPU will save a lot of time to caculate the position of cursor and read mant bit map data from font ROM then write to dispaly RAM. The MPU will promote the display efficiency to handle Chinese text display. And it will reduce the system develope time. The display range of RA8815 is 128x33 dots. So it needs 528Byte(128*33/8) display RAM. In addition, RA8815 also built-in a scroll buffer to provide the scrlling and shiftting functions. The Character Generator RAM(CGRAM) is used for user to create special fonts. There are eight space of full size font to reserved for user. Their codes are fixed from FFF0h to FFF7h. The MPU could write the mapping code to RA8815 and show the bit map font on screen that after the user font(writing 32 byte to CGRAM) was created. 6-3 System Clock The clock of RA8815 is generated by the internal circuit and resister that between pin RA and RB. Normally the resistor is vaule is 270Kohm and the clock frequency is around 55KHz. When the bit0(SLP) of register PWRR set to “1”, then the clock will be stop. Whe the input pin “CLK_SEL” set to “0”, then system clock can also input from external clock through pin “EXT_CLK”. RAiO TECHNOLOGY INC. 29/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 6-4 LCD Driver and Power Circuit The driver circuit of RA8815 is a low power design. The power supply circuit is consist of Booster, Voltage Regulator and Voltage Follower. For different requirement of power, the Driver Control Register(REG[11h]) is used to enable or disaable for related circuit. D[n:0] VLCD Cxn CK_BS Booster LT Latch x m LP Latch x n VREG Regulator Voltage Follower R-String BOFF V0 V1 V2 V3 V4 ROFF COM / Segment Driver COM[31:0] COMS SEG[127:0] DOFF V[4:0] VREF Figure 6-20: LCD Driver and Power Supply Circuit Block The user could use the setting of register REG[11h] to select the internal or external power. Please refer to the following of Table 6-2 and Table 6-3. Table 6-2: Power Circuit Setup Driver Control Register (DRCR_A) State ‘1’ ‘0’ Functions Bit7 Booster Circuit Control Bit ON OFF Bit6 Bit5 Bit4 Reference Voltage Circuit Control Bit Voltage Regulator Circuit Control Bit Voltage Follower Circuit Control Bit ON ON ON OFF OFF OFF Table 6-3: Setting Table of Power Circuit Driver Control Register (DRCR_A) D7 D6 D5 D4 1 1 1 Booster Voltage Regulator Reference Voltage(VREF) of Voltage Regulator 1 ON ON Internal Voltage Follower External Power ON VDD 0 1 1 1 OFF ON Internal ON VLCD, VDD 1 0 1 1 ON ON External ON VREF, VDD 0 0 1 1 OFF ON External ON VLCD, VREF, VDD 0 0 0 1 OFF OFF Don’t Need ON VREG, VDD 0 0 0 0 OFF OFF Don’t Need OFF V0~V4, VDD RAiO TECHNOLOGY INC. 30/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 6-4-1 Booster Circuit The RA8815 built-in a Booster which create 3-times or 2-times of “VDD-VSS” that we called “VLCD”. The VLCD is supply the power for next stage curcuit – Voltage Regulator and internal Driver cuicuit. If connect an 1uF capacitor on pin C1P and C1M, then the VLCD is eaual to 2*VDD. If the pin C2P and C2Malso connect n 1uF capacitor then the VLCD is 3*VDD. Refer to the following description of Figure 6-21. Because the RA8815 supports maximumn LCD panel is 128x33. Therefore sometimes you can get the good display quality that base on lower power such as 5V only. In that case, user only need to connect 5V to VDD, VLCD, C1P and C2P. And you do not need to add capacitor on C1P/C1M and C2P/C2M. VDD C 2P C 1P C 1M C 2P C 2M C 2M VLCD VLCD VSS VSS RA8815 C 1M RA8815 C 1P VDD 2 X S te p -u p V o lta g e C irc u it 3 X S te p -u p V o lta g e C irc u it V L C D = 3 x V D D = 7 .2 V V L C D = 2 xV D D = 6 V V D D = 2 .4 V VDD=3V VSS=0V VSS=0V 3 X S te p -u p V o lta g e R e la tio n s h ip s 2 X S te p -u p V o lta g e R e la tio n s h ip s Figure 6-21: Application Circuit of Booster The clock source of Booster is also control by register DRCR_B. Please refer to the description of REG[12h] in Chapter 5-2. Normally, if use the internal Driver Power, then the application circuit is follow Figure 6-22. If use external VLCD, that means do not use the internal Booster, then the connection is show as Figure 6-23. RAiO TECHNOLOGY INC. 31/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver External Power Supply VLCD C1 VLCD C2M C1 C1 C2 C2 C2 C2M C2P C2P C1M C1P C1M C1P C2 VREF C2 V0 C2 V1 VREF V0 V1 C2 V2 C2 V2 C2 V3 C2 V3 C2 V4 C2 V4 VSS VSS Figure 6-22: Internal VLCD(3*VDD) Figure 6-23: External VLCD Note: The capacitor value of C1 is 1uF and C2 is 0.1uF. 6-4-2 Voltage Regulator The Voltage Regulator is consists of Band-Gap and OP-Amp. The purpose is used to generated a stable power - VREG for Voltage Follower. The RA8815 also built-in a fixed reference power - VREF for Voltage Regulator to generated VREG. The basic formula is as following: VREG=(1+R1/R2)×VREF R1 VREG R2 VREF Figure 6-24: Voltage Regulator The resistor ratio(VREF and VREG) of Voltage Regulator is adjustable by register DRCR_B. There are total seven cases - 2/2.5/3/3.5/4/4.5/5X. Refer to the description of Bit[5:3] of register RCR_B on Chapter 5-2. The Voltage Regulator also provide -0.05% auto adjust for temperature compensation. The internal VREF of RA8815 value is 1.6V. It’s also could supply from external circuit. Please refer to Table 6-3 and Table 6-4: RAiO TECHNOLOGY INC. 32/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver Table 6-4: Select VREF Register DRCR_A Bit6(EN_R) VREF 0 1.60V (Ta=25°C) 1 External 6-4-3 Voltage Follower The internal Voltage Follower provides V0~V4 power for LCD Driver circuit. Of course, the user could select internal or external Voltage Follower. The relationship of V0~V4 and LVLCD is as following: VLCD > V0 > V1 > V2 > V3 > V4 > GND Figure 6-25A shows the circuit of using internal Voltage Follower. For external V0~V4, the connection is show as Figure 6-25B. External Power Supply C2 C2 VLCD VLCD C2M C2M C2P C2P C1M C1P C1M C1P VREF VREF V0 V0 V1 C2 V2 C2 V3 C2 V4 External Power Supply V1 V2 V3 V4 VSS VSS Figure 6-25A: Use Internal Voltage Follower Figure 6-25B Use External Voltage Follower 6-4-4 LCD Driver The Segment/Common Driver of RA8815 is used to latch the data of pre-stage, then send to Level Shifter for combination. The combined data will follow the Timing Generator to control the switchs then pass the V0~V4 to Common and Segment. The LCD Bias of RA8815 is adjustable by register CSTR that from 1/4 to 1/7. The user can also adjust the display quality from this register. Meanwhile, the driving current is also adjustable by register DRCR_B that in order to meet different panel. As Figure 6-26, the RA8815 provides 128 Segment and 33 Common signals. One of the Common signal – COMS is provide for the Icon of LCD Panel. The COMS_A[1:0] and COMS_B[1:0] are located on the both side of RA8815 that in order to easier layout for COG panel. The COMS_A[1:0] RAiO TECHNOLOGY INC. 33/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver and COMS_B[1:0] have independent buffers, so if the area of Icon is bigger, then you can connect the COMS_A0 and COMS_A1 together. Or connect COMS_B0 and COMS_B1 together. 128 Segment Drivers SEG0~SEG127 33 Common Drivers COM0~COM31 COMS_A0 COMS_A1 COMS COMS_B0 COMS_B1 Figure 6-26：The Driver of Segment and Common The DOFF_Z of register PWRR is used to cotrol the On/Off of LCD Panel, When DOFF_Z is set to “0” then LCD Driver was closed. At this state, the driver output signals COM0~COM31 and SEG0~SEG127 are connect to GND, and the screen of LCD Panel was Off. 6-5 Interrupt The RA8815 provide a interrupt signal( INT ) to response three possible interrupt: Busy Interrupt– When the data write to display RAM was complete. Scroll Interrupt - When the scroll window shifted 1, 8 or 16-pixels. Key-scan Interrupt - When a key was pressed. The interrupt of above can be enabled or disable by register. The MPU can read the interrupt message form interrupt status register. The INT is active low, so when MPU detect the interrupt happen then must clear interrupt status for INT return to high. If user do not use the hardware interrupt( INT ), then MPU can get the interrupt message by reading the status register. 6-6 Key-Scan The RA8815 built-in 4x5 key-scan circuit for extra key board function to help user integrate a key matrix application. In auto-mode, MPU can read the key code from register to know the key was shortpress, long-presee or key released. Use can also adjust the cycle time of key-scan. Figure 6-27 is the simple application curcuit. Table 6-5 is the mapping keyboard code of key matrix as Figure 6-27. So MPU knows which ket be pressed by reading register – KSDR. RAiO TECHNOLOGY INC. 34/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver RA8815 KST3 KST2 KST1 KST0 VDD 10KΩ KIN4 KIN3 KIN2 KIN1 KIN0 Figure 6-27: 4x5 Key Matrix Curcuit Table 6-5: Keyboard Code of Auto-Mode Short-Press Long-Press KST3 KST2 KST1 KST0 KST3 KST2 KST1 KST0 KIN0 15h 10h 05h 00h 35h 30h 25h 20h KIN1 16h 11h 06h 01h 36h 31h 26h 21h KIN2 17h 12h 07h 02h 37h 32h 27h 22h KIN3 18h 13h 08h 03h 38h 33h 28h 23h KIN4 19h 14h 09h 04h 39h 34h 29h 24h In Auto-Mode of Key-Scan function, if the key pressed over one second, then the RA8815 will cause interrupt and change the data of register – KSDR to a long-press code. Therefore MPU knows which key was pressed ove one second. 6-7 I/O Port The RA8815 provide eight Igeneral purpose I/O pins. Each I/O pin is easy to setup as input or output. They can use to drive LED, wakeup the RA8815 or provide information for whole system. 6-8 EL Signals The RA8815 provide two special signals for EL driver circuit. The signals active time can also setup by register ELCR. The waveform and application are show as Figure 6-28 and 6-29. RAiO TECHNOLOGY INC. 35/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver ≒ 700 us ≒ 700 us EL_DCHG EL_CHRG ≒3 us ≒24 us ≒24 us ≒3 us Figure 6-28: Control Signals for EL Driver L1=3MH +3V 3 D1 1N4148 EL_CHRG 充電 EL_DCHG 放電 R1=2K Q1 2SC1623 EL R3 2K Q2 2SC1623 R2 =2K Figure 6-29: EL Driver Circuit 6-9 ASCII Block 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F Figure 6-30: Samll ASCII(Table 0) The RA8815 built-in three ASCII block which contines ASCII and special symbol for user to show on display directly in text mode. Actually these three ASCII block are store in 256Kbyte Font ROM(see RAiO TECHNOLOGY INC. 36/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver Chapter 6-2). As the Figures 6-30~6-32, the left of each table is the High Nibble, and the right is the Low Nibble. The selection of these block is by MD0 and MD1 of register MWMR. The Figure 6-30 is the table of small ASCII. Each character size is 8x8 dots. Therefore if the LCD panel size is 128Segx33Com then it can show four rows, and each row has 16 samll ASCII font. Figure 6-31 and 6-32 are the table of big ASCII. For the same panel size, it can show two row, and each row has 16 character. 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 A A B B C C D D E E F F Figure 6-31: Big ASCII (Table 1) Figure 6-32: Big ASCII (Table 2) 6-10 Power Control The RA8815 supports Normal Mode and Sleep Mode for operation. If write “0” to bit0 of register PWRR, then RA8815 will enter sleep mode. The functions of LCD display and driver will stop. All of the signals of COM and SEG will keep low, Key Strobe signals will keep high, and I/O keep the original state. Because the RC clock was stop, so the power consumption is very samll. The RA8815 provide three way to wake up the system: 1. Write ”1” to the bit0 of register PWRR. 2. Key-scan to wake up 3. I/O wake up In wake up phase, the RA8815 will wake up the RC oscillator first, and it will take around 250ms. Then the RA8815 is enable to accept the command from MPU and LCD driver wake up for activity. The VDD power operation range of RA8815 is 2.5~3.6V. But on the COG module, some power consumption will lose on the connection of FPC and chip that due to the ITO layout issue. So normally the VDD power range of COG module on the FPC side is around V2.7~3.8V. RAiO TECHNOLOGY INC. 37/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 7. Display Functions 7-1 Text Mode The RA8815 built-in a 256KB Font ROM that includung Traditional Chinese or Simpled Chinese, English,Japaness, ASCII, Europen and Latin(Latin-ext A, Latin-ext B). In text mode, it supports full-size font(Chinese or English) display or half-size(Dnglish) display. The full-size font is consist of 16x16 bit map. And half-size is consist of 8x16 or 8x8. Refer to the following Figure 7-1: 16x16 Pixel 8x16 Pixel 8x8 Pixel Figure 7-1: Full-Size and Half-Size Font The Chinese display is operating at text mode. So if the RA8815 received two Chinese codes(BIG5 or GB) then the mapped font will show on the cursor position. Because each Chinese code including two bytes data, therefore the MPU has to send the code twice – High byte and Low byte. For English or Numeric, only one byte is need. The maximum supports panel size of RA8815 is 128x33dots. So in text mode it could show 2x8 Chinese fonts and 4x16 English fonts. The register MWMR is used to setup the font size for display. The user can also select the different display mode such as bold, inverse or normal mode in this register. 7-2 Graphic Mode In the graphics mode, the RA8815 is fill the bit map data into display memory directly. So if the [MD1, MD0] of register is set to ”00” (Graphics Mode), then write the data into memory, the data will show on the screen that cursor pointed. Figure 7-2: Graphics Mode Display RAiO TECHNOLOGY INC. 38/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver The display RAM size of RA8815 is 528Byte(128*33/8). Each memory bit is mapping to the LCD panel. If the data is “1” then the mapped dot is turn on. Please refer the Figure 7-3. Segment D7 D6 D5 D4 D3 D2 D1 D0 1 1 1 0 0 1 1 0 1 2 3 4 5 6 7 ….. 0 Display Data RAM Display On LCD Figure 7-3: Display Data Mapping to the Screen The RA8815 also provide a clean feature to clear all of the display RAM. If the “MCLR” of register PWRR is set to “1”, then all of contents of Display RAM will be clear to “0”. In the graphics mode, the user could select the blinking or inverse through register BLTR. The blinking are is assigned by the size of Scroll Window. 7-3 Cursor Setting 7-3-1 Cursor Position and Shift The unit of Segment Address is 8-Bit, Commom is 1-Bit. For example, if user want to show a font “制” on the third position(full-size) of top, then the register X-CUR has to set 04h and Y-CUR set to 00h. If the second row wan to show “器” as Figure 7-4, then the X-CUR set to 00h and Y-CUR set to 10h. Both of text mode and graphics mode, the cursor position are use the same resgidter - X-CUR and Y-CUR. If fill data to display RAM or show a Chinese font on the screen, the cursor will auto increase, and the boundry is the display window. 00 01 02 03 04 05 …..……………..........……………….............….....…........…. 0F 00 : : 10 : : 1F 128(Segment) x 32(Common) Figure 7-4: An Example for Cursor Setting 7-3-2 Cursor Display and Blink The RA8815 provide cursor On/Off and blinking features. These functions are control by register CURCR. The cycle time of blinking is depend on the setting of register BLTR. The range is from 8 to 128 frames. RAiO TECHNOLOGY INC. 39/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 7-3-3 Cursor Height The cursor height is also setting by register CURCR. For full-size mode the cursor height is adjustable from 1 to16 pixels, and half size is form 1 to 8 pixels. Please refer to Figure 7-5. 1 Pixel 2 Pixel 3 Pixel 16 Pixel Figure 7-5: Cursor Height 7-4 Display Window Normally, the Display Window size is same as LCD panel. It’s setting by register SYSR. The maximumnis range is 128(Segment)x32(Common). The RA8815 provide a extran Common(Com-S) as the selection of Icon. Therefore the total 128 Icon for usage. Before access the Com-S, the register YCUR has set to 50h, then program the X-CUR to select Icon. The RA8815 provides two positions for the panel layout of COM-S. It’s convenient for user to deisgn the position of Icon fro their application. Refer to the Figure 7-6. Icon (Com S) Common (COM0~31) ………………………… 0 1 2 : : : : 31 0 1 2 3 …………………………………………………………………………………………………………………………………127 Segment(SEG0~127) Segment(SEG0~127) 0 1 2 3 …………………………………………………………………………………………………………………………………127 Common (COM0~31) Icon (Com S) 0 1 2 : : : : 31 ………………………… Figure 7-6: Display Window and Icon RAiO TECHNOLOGY INC. 40/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 7-5 Horizontal Scroll The RA8815 provide Horizontal Scroll feature. User could assign the range of srolling, scroll unit and speed. Refer to the following example as Figure 7-7. The scroll unit is set to 2 pixels. Figure 7-7: Horizontal Scroll The RA8815 allows horizontal scroll for right or left way. The user could use the scrolling buffer to show the Shift funtion. For example, store the data or text on the Horizontal Scroll Buffer first, then fill the new data/text into the buffer that after the screen shift 16pixels. You can repeat these action and find the screen is shift like caption of advertisement. The Figure 7-8 is an example to show he Horizontal Shift. The shift unit is 8pixels and the gray area is the scroll buffer. The displat data will not show on the screen. Please refer to application note for the related horizontal scroll feature. RAiO TECHNOLOGY INC. 41/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver Figure 7-8: Horizontal Shift 7-6 Vertical Scroll The RAS8815 alos provides the Vertical Scroll and Shift features that like horizontal function. User could assign the range of srolling, scroll unit and speed. Refer to the following example as Figure 7-9. The vertical scroll unit is set to 2 pixels. The RA8815 allows vertical scroll for up or down way. The user could use the scrolling buffer to show the Shift funtion. For example, store the data or text on the Vertical Scroll Buffer first, then fill the new data/text into the buffer that after the screen shift 16pixels. Please refer to application note for the related vertical scroll features. RAiO TECHNOLOGY INC. 42/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver Figure 7-9: Vertical Scroll RAiO TECHNOLOGY INC. 43/63 www.raio.com.tw 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 COMS_A0 COMS_A1 COM0 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 COM9 COM10 COM11 COM12 COM13 COM14 COM15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 PT1 Top View (9065 x 1586) PT3 PT4 PT5 Chip Size Bump Size Bump Pitch Bump Height RAiO TECHNOLOGY INC. PT6 GND 68 VDD 69 RA 70 RB 71 DB7, SMOD1 72 DB6, SMOD0 73 DB5 74 DB4 75 DB3, CS 76 DB2, RS, SDI 77 DB1, SDA, SDO 78 DB0, SCL 79 RD, EN 80 WR, R/W 81 D/C, RS 82 CS 83 C86 84 BIT4 85 P/S 86 INT 87 EXT_CLK 88 CLK_SEL 89 KST3 90 KST2 91 KST1 92 KST0 93 KIN4 94 KIN3 95 KIN2 96 KIN1 97 KIN0 98 IO7 99 IO6 100 IO5 101 IO4 102 IO3 103 IO2 104 IO1 105 IO0 106 EL_CHRG 107 EL_DCHG 108 RST 109 TEST2 110 TEST1 111 TEST0 112 GND 113 GND 114 VDD 115 VDD 116 S0 116-1 116-2 FG 116-3 S1 VLCD VLCD VLCD VLCD VLCD VLCD C2M C2M C2P C2P C1M C1M C1P C1P GNDP GNDP GND GND GND GND VDD VDD VDD VDDP V0 V0 V0 V0 V1 V1 V1 V1 V2 V2 V2 V2 V3 V3 V3 V3 V4 V4 V4 V4 VREF VREF VREG VREG VREG 264 263 262 261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 DUM_L SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35 SEG36 SEG37 SEG38 SEG39 SEG40 SEG41 SEG42 SEG43 SEG44 SEG45 SEG46 SEG47 SEG48 SEG49 SEG50 SEG51 SEG52 SEG53 SEG54 SEG55 SEG56 SEG57 SEG58 SEG59 SEG60 SEG61 SEG62 SEG63 SEG64 SEG65 SEG66 SEG67 SEG68 SEG69 SEG70 SEG71 SEG72 SEG73 SEG74 SEG75 SEG76 SEG77 SEG78 SEG79 SEG80 SEG81 SEG82 SEG83 SEG84 SEG85 SEG86 SEG87 SEG88 SEG89 SEG90 SEG91 SEG92 SEG93 SEG94 SEG95 SEG96 SEG97 SEG98 SEG99 SEG100 SEG101 SEG102 SEG103 SEG104 SEG105 SEG106 SEG107 SEG108 SEG109 SEG110 SEG111 SEG112 SEG113 SEG114 SEG115 SEG116 SEG117 SEG118 SEG119 SEG120 SEG121 SEG122 SEG123 SEG124 SEG125 SEG126 SEG127 DUM_R RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 8. Pin Diagram 8-1 COG Pad PT2 Y PT13 Logo PT13 RA8815 PT7 (0, 0) P1 X PT13: 199 to 200 44/63 PT8 PAD 1~18, PAD 117~134 (COM Pads) PAD 19~116 (MCU/Power Pads) PT9 PT1: PAD 1~18, PAD 117~134 57μm PT2: PAD 135~143, 144~159, 160~175, 176~191, 64.8μm PT3: PAD 19~32, PAD 33~42 57μm PT4: PAD 32 to 33 63.3μm PT5: PAD 42 to 43 84.2μm PT6: PAD 43 to 67, PAD 68 to 70 100μm PT7: PAD 67 to 68 500μm PT8: PAD 70 to 112 80μm PT9: PAD 112 to 116 60μm PT10: PAD 116 to 116-1 63.2μm PT11: PAD 116-1 to 116-3 55μm PT10 PT11 P2 Figure 8-1：Pin Diagram Table 8-1：Bump Size and Pitch 9065μm x 1586μm 74μm x 38μm PAD 135~264 (SEG Pads), 38μm x 74μm PAD 161-1 ~ 161-3 (S0, FG, S1) 192~199, 200~207, 208~223, 224~239, 240~255, 256~264 PT12: PAD 143 to 144, 159 to 160, 175 to 176, 191 to 192, 74.6μm 199 to 200, 207 to 208, 223 to 224, 239 to 240, 255 to 256 89μm 15±3μm www.raio.com.tw 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 COM16 COM17 COM18 COM19 COM20 COM21 COM22 COM23 COM24 COM25 COM26 COM27 COM28 COM29 COM30 COM31 COMS_B0 COMS_B1 RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver G1 G2 G3 A B H D C Al-pad Bump Passivation N J K L Unit: um Size Symbol A 54 B 30 C 66 D 90 E 27~70 F 57~100 E G1/G2/G3 4/8/12 F H 12 J 74 Bump M Al-Pad K 38 L 15 ± 3 M 19~62 N 3~46 Figure 8-2：Gold Bump PAD Dimension B B A A A B P1 C B A B P2 Unit: um B C Symbol Size and Coordinate A 20 B 30 C 90 P1 (-66.1, -727.3) P2 (4124.7, -727.3) Figure 8-3：Fixed Point Dimension RAiO TECHNOLOGY INC. 45/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 8-2 Pad X/Y Coordinate Pad No. Pad Name X Y Pad No. Pad Name X Y 1 COMS_A0 -4437.9 491.3 36 GND -3237.6 -698.3 2 COMS_A1 -4437.9 434.3 37 GND -3180.6 -698.3 3 COM0 -4437.9 377.3 38 GND -3123.6 -698.3 4 COM1 -4437.9 320.3 39 VDD -3066.6 -698.3 5 COM2 -4437.9 263.3 40 VDD -3009.6 -698.3 6 COM3 -4437.9 206.3 41 VDD -2952.6 -698.3 7 COM4 -4437.9 149.3 42 VDDP -2895.6 -698.3 8 COM5 -4437.9 92.3 43 V0 -2811.4 -698.3 9 COM6 -4437.9 35.3 44 V0 -2711.4 -698.3 10 COM7 -4437.9 -35.3 45 V0 -2611.4 -698.3 11 COM8 -4437.9 -92.3 46 V0 -2511.4 -698.3 12 COM9 -4437.9 -149.3 47 V1 -2411.4 -698.3 13 COM10 -4437.9 -206.3 48 V1 -2311.4 -698.3 14 COM11 -4437.9 -263.3 49 V1 -2211.4 -698.3 15 COM12 -4437.9 -320.3 50 V1 -2111.4 -698.3 16 COM13 -4437.9 -377.3 51 V2 -2011.4 -698.3 17 COM14 -4437.9 -434.3 52 V2 -1911.4 -698.3 18 COM15 -4437.9 -491.3 53 V2 -1811.4 -698.3 19 VLCD -4212.9 -698.3 54 V2 -1711.4 -698.3 20 VLCD -4155.9 -698.3 55 V3 -1611.4 -698.3 21 VLCD -4098.9 -698.3 56 V3 -1511.4 -698.3 22 VLCD -4041.9 -698.3 57 V3 -1411.4 -698.3 23 VLCD -3984.9 -698.3 58 V3 -1311.4 -698.3 24 VLCD -3927.9 -698.3 59 V4 -1211.4 -698.3 25 C2M -3870.9 -698.3 60 V4 -1111.4 -698.3 26 C2M -3813.9 -698.3 61 V4 -1011.4 -698.3 27 C2P -3756.9 -698.3 62 V4 -911.4 -698.3 28 C2P -3699.9 -698.3 63 VREF -811.4 -698.3 29 C1M -3642.9 -698.3 64 VREF -711.4 -698.3 30 C1M -3585.9 -698.3 65 VREG -611.4 -698.3 31 C1P -3528.9 -698.3 66 VREG -511.4 -698.3 32 C1P -3471.9 -698.3 67 VREG -411.4 -698.3 33 GNDP -3408.6 -698.3 68 GND 88.6 -698.3 34 GNDP -3351.6 -698.3 69 VDD 188.6 -698.3 35 GND -3294.6 -698.3 70 RA 288.6 -698.3 RAiO TECHNOLOGY INC. 46/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver Pad No. Pad Name X Y Pad No. Pad Name X Y 71 RB 368.6 -698.3 108 EL_DCHG 3328.6 -698.3 72 DB7 448.6 -698.3 109 RST 3408.6 -698.3 73 DB6 528.6 -698.3 110 TEST2 3488.6 -698.3 74 DB5 608.6 -698.3 111 TEST1 3568.6 -698.3 75 DB4 688.6 -698.3 112 TEST0 3648.6 -698.3 76 DB3 768.6 -698.3 113 GND 3708.6 -698.3 77 DB2 848.6 -698.3 114 GND 3768.6 -698.3 78 DB1 928.6 -698.3 115 VDD 3828.6 -698.3 79 DB0 1008.6 -698.3 116 VDD 3888.6 -698.3 80 RD 1088.6 -698.3 116-1 S0 3951.8 -698.3 81 WR 1168.6 -698.3 116-2 FG 4006.8 -698.3 82 D/ C 1248.6 -698.3 116-3 S1 4061.8 -693.3 83 CS 1328.6 -698.3 117 COMS_B1 4437.9 -491.3 84 C86 1408.6 -698.3 118 COMS_B0 4437.9 -434.3 85 BIT4 1488.6 -698.3 119 COM31 4437.9 -377.3 86 P/ S 1568.6 -698.3 120 COM30 4437.9 -320.3 87 INT 1648.6 -698.3 121 COM29 4437.9 -263.3 88 EXT_CLK 1728.6 -698.3 122 COM28 4437.9 -206.3 89 CLK_SEL 1808.6 -698.3 123 COM27 4437.9 -149.3 90 KST3 1888.6 -698.3 124 COM26 4437.9 -92.3 91 KST2 1968.6 -698.3 125 COM25 4437.9 -35.3 92 KST1 2048.6 -698.3 126 COM24 4437.9 35.3 93 KST0 2128.6 -698.3 127 COM23 4437.9 92.3 94 KIN4 2208.6 -698.3 128 COM22 4437.9 149.3 95 KIN3 2288.6 -698.3 129 COM21 4437.9 206.3 96 KIN2 2368.6 -698.3 130 COM20 4437.9 263.3 97 KIN1 2448.6 -698.3 131 COM19 4437.9 320.3 98 KIN0 2528.6 -698.3 132 COM18 4437.9 377.3 99 IO7 2608.6 -698.3 133 COM17 4437.9 434.3 100 IO6 2688.6 -698.3 134 COM16 4437.9 491.3 101 IO5 2768.6 -698.3 135 DUM_R 4230.9 698.3 102 IO4 2848.6 -698.3 136 SEG127 4166.1 698.3 103 IO3 2928.6 -698.3 137 SEG126 4101.3 698.3 104 IO2 3008.6 -698.3 138 SEG125 4036.5 698.3 105 IO1 3088.6 -698.3 139 SEG124 3971.7 698.3 106 IO0 3168.6 -698.3 140 SEG123 3906.9 698.3 107 EL_CHRG 3248.6 -698.3 141 SEG122 3842.1 698.3 RAiO TECHNOLOGY INC. 47/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver Pad No. Pad Name X Y Pad No. Pad Name X Y 142 SEG121 3777.3 698.3 179 SEG84 1350.3 698.3 143 SEG120 3712.5 698.3 180 SEG83 1285.5 698.3 144 SEG119 3637.9 698.3 181 SEG82 1220.7 698.3 145 SEG118 3573.1 698.3 182 SEG81 1155.9 698.3 146 SEG117 3508.3 698.3 183 SEG80 1091.1 698.3 147 SEG116 3443.5 698.3 184 SEG79 1026.3 698.3 148 SEG115 3378.7 698.3 185 SEG78 961.5 698.3 149 SEG114 3313.9 698.3 186 SEG77 896.7 698.3 150 SEG113 3249.1 698.3 187 SEG76 831.9 698.3 151 SEG112 3184.3 698.3 188 SEG75 767.1 698.3 152 SEG111 3119.5 698.3 189 SEG74 702.3 698.3 153 SEG110 3054.7 698.3 190 SEG73 637.5 698.3 154 SEG109 2989.9 698.3 191 SEG72 572.7 698.3 155 SEG108 2925.1 698.3 192 SEG71 498.1 698.3 156 SEG107 2860.3 698.3 193 SEG70 433.3 698.3 157 SEG106 2795.5 698.3 194 SEG69 368.5 698.3 158 SEG105 2730.7 698.3 195 SEG68 303.7 698.3 159 SEG104 2665.9 698.3 196 SEG67 238.9 698.3 160 SEG103 2591.3 698.3 197 SEG66 174.1 698.3 161 SEG102 2526.5 698.3 198 SEG65 109.3 698.3 162 SEG101 2461.7 698.3 199 SEG64 44.5 698.3 163 SEG100 2396.9 698.3 200 SEG63 -44.5 698.3 164 SEG99 2332.1 698.3 201 SEG62 -109.3 698.3 165 SEG98 2267.3 698.3 202 SEG61 -174.1 698.3 166 SEG97 2202.5 698.3 203 SEG60 -238.9 698.3 167 SEG96 2137.7 698.3 204 SEG59 -303.7 698.3 168 SEG95 2072.9 698.3 205 SEG58 -368.5 698.3 169 SEG94 2008.1 698.3 206 SEG57 -433.3 698.3 170 SEG93 1943.3 698.3 207 SEG56 -498.1 698.3 171 SEG92 1878.5 698.3 208 SEG55 -572.7 698.3 172 SEG91 1813.7 698.3 209 SEG54 -637.5 698.3 173 SEG90 1748.9 698.3 210 SEG53 -702.3 698.3 174 SEG89 1684.1 698.3 211 SEG52 -767.1 698.3 175 SEG88 1619.3 698.3 212 SEG51 -831.9 698.3 176 SEG87 1544.7 698.3 213 SEG50 -896.7 698.3 177 SEG86 1479.9 698.3 214 SEG49 -961.5 698.3 178 SEG85 1415.1 698.3 215 SEG48 -1026.3 698.3 RAiO TECHNOLOGY INC. 48/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver Pad No. Pad Name X Y Pad No. Pad Name X Y 216 SEG47 -1091.1 698.3 253 SEG10 -3508.3 698.3 217 SEG46 -1155.9 698.3 254 SEG9 -3573.1 698.3 218 SEG45 -1220.7 698.3 255 SEG8 -3637.9 698.3 219 SEG44 -1285.5 698.3 256 SEG7 -3712.5 698.3 220 SEG43 -1350.3 698.3 257 SEG6 -3777.3 698.3 221 SEG42 -1415.1 698.3 258 SEG5 -3842.1 698.3 222 SEG41 -1479.9 698.3 259 SEG4 -3906.9 698.3 223 SEG40 -1544.7 698.3 260 SEG3 -3971.7 698.3 224 SEG39 -1619.3 698.3 261 SEG2 -4036.5 698.3 225 SEG38 -1684.1 698.3 262 SEG1 -4101.3 698.3 226 SEG37 -1748.9 698.3 263 SEG0 -4166.1 698.3 227 SEG36 -1813.7 698.3 264 DUM_L -4230.9 698.3 228 SEG35 -1878.5 698.3 229 SEG34 -1943.3 698.3 230 SEG33 -2008.1 698.3 231 SEG32 -2072.9 698.3 232 SEG31 -2137.7 698.3 233 SEG30 -2202.5 698.3 234 SEG29 -2267.3 698.3 235 SEG28 -2332.1 698.3 236 SEG27 -2396.9 698.3 237 SEG26 -2461.7 698.3 238 SEG25 -2526.5 698.3 239 SEG24 -2591.3 698.3 240 SEG23 -2665.9 698.3 241 SEG22 -2730.7 698.3 242 SEG21 -2795.5 698.3 243 SEG20 -2860.3 698.3 244 SEG19 -2925.1 698.3 245 SEG18 -2989.9 698.3 246 SEG17 -3054.7 698.3 247 SEG16 -3119.5 698.3 248 SEG15 -3184.3 698.3 249 SEG14 -3249.1 698.3 250 SEG13 -3313.9 698.3 251 SEG12 -3378.7 698.3 252 SEG11 -3443.5 698.3 RAiO TECHNOLOGY INC. 49/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 9. Electrical Characteristic 9-1 Absolute Maximum Ratings Table 9-1 Parameter Symbol Rating Unit Supply Voltage Range VDD -0.3 to 6.5 V Input Voltage Range VIN -0.3 to VDD+0.3 V External VLCD Voltage Range VLCD -0.3 to 8.0 V Operation Temperature Range TOPR -20 to 80 ℃ Storage Temperature Range TST -45 to 125 ℃ 9-2 DC Characteristic Table 9-2 Parameter Symbol Min. Typ. Max. Unit Operating Voltage VDD 2.5 3.3 3.6 V Bare Die Operating Voltage VDD 2.7 3.3 3.8 V COG Module VLCD Voltage VLCD -- 5~7 7.8 V Input High Voltage VIH 0.8°VDD -- VDD V Input Low Voltage VIL Gnd -- 0.2°VDD V Output High Voltage VOH 0.8°VDD -- VDD V Output Low Voltage VOL Gnd -- 0.2°VDD V Condition Input Leakage Current IIL -1 -- +1 μA VIN = VDD to VSS Output Leakage Current IOL -3 -- +2 μA VIN = VDD to VSS -- 56 -- -- 55 -- -- 47 -- VDD=2.4V, R = 270K Oscillator Frequency FCL VDD=3.3V, R = 270K KHz VDD=3.0V, R = 270K Standby Mode Current (Normal Mode Current) ISB -- 70 -- μA No MPU I/F Access VDD=3.3V, FCL = 55KHz Segment=128, Common=32 FRM = 60Hz TA=25℃ Display Off Current IDISPLAY -- 25 -- μA The same as above Sleep Mode Current ISLEEP -- 0.2 0.5 μA The same as above VDD = 2.4 to 3.6V, Gnd = 0V, Ta = -20 to 80℃ RAiO TECHNOLOGY INC. 50/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 9-3 Timing Characteristic 9-3-1 Parallel Interface tCSW6 RS, CS tCYC6 R/W tAC6 tWEN6 tRWH6 EN tDS6 tDH6 DB[7:0] (Write) tOH6 DB[7:0] (Read) tOS6 Figure 9-1：6800 MPU Timing 6800 MPU Interface Item Address Setup Time Read/Write Setup Time Read/Write Hold Time Signal RS, CS R/ W Enable Access Time Access Cycle Time EN Write Data Setup Time Write Data Hold Time Read Data Access Time Read Data Hold Time RAiO TECHNOLOGY INC. DB[7:0] Symbol Rating Condition Unit Min. Max. tCSW6 0 -- tWEN6 10 -- tRWH6 10 -- tAC6 90 -- Command Cycle 200 -- Data Cycle 400 -- tDS6 0 -- tDH6 10 -- tOS6 -- 0 tOH6 10 -- tCYC6 51/63 ns www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver tCSW8 D/C, CS tCYC8 tAC8 RD, WR tCSH8 tDS8 DB[7:0] (Write) tDH8 tOS8 tOH8 DB[7:0] (Read) Figure 9-2：8080 MPU Timing 8080 MPU Interface Item Signal Address Setup Time Symbol RS, CS Address Hold Time Read/Write Access Time RD , WR Access Cycle Time Write Data Setup Time Write Data Hold Time DB[7:0] Read Data Setup Time Read Data Setup Time Rating Condition Unit Min. Max. TCSW8 10 -- TCSH8 10 -- tAC8 90 -- Command Cycle 200 -- Data Cycle 400 -- tDS6 0 -- tDH6 10 -- tOS6 -- 0 tOH6 10 -- TCYC8 ns 9-3-2 Serial Interface tCYC3 CS tCSH3 SDA RW SCK tDS3 tCKL3 RS(0) R7 R6 ………………….. R0 D7 D6 …………………. D0 tDH3 tCKH3 Register No. R/W DATA. Figure 9-3：3-Wire Timing RAiO TECHNOLOGY INC. 52/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 3-Wire Serial Interface Item Signal Access Time CS CS Setup Time Clock Low Pulse Width Clock High Pulse Width Data Setup Time SCK SDA Data Hold Time Symbol Rating Condition Unit Min. Max. tCYC3 3.6 -- tCSH3 20 -- tCKL3 100 -- tCKH3 100 -- tDS3 20 -- tDH3 10 -- μs ns tCYC4A CS tCSH4 RS 0 SDA Don’t Care RW tDS4 SCK tCKL4 R7 R6 …………..…….. R0 D7 D6 ……….……………. D0 tDH4 tCKH4 Register No. R/W DATA. Figure 9-4：4-Wire(A-Type) Timing 4-Wire(A-Type) Serial Interface Item Signal Access Time CS Setup Time Clock Low Pulse Width Clock High Pulse Width Data Setup Time Data Hold Time RAiO TECHNOLOGY INC. CS SCK SDA, RS Symbol Rating Condition Unit Min. Max. tCYC4A 3.4 -- tCSH4 20 -- tCKL4 100 -- tCKH4 100 -- tDS4 20 -- tDH4 10 -- 53/63 μs ns www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver tCYC4B CS tCSH4 SDI RW tDS4 SDO RS(0) R7 R6 ………………….. R0 WD7 WD6 ……………. WD0 tDH4 Don’t Care RD7 RD6 …………..... RD0 tOS4B SCK tCKL4 tOH4B Register No. tCKH4 R/W DATA. Figure 9-5：4-Wire(B Type) Timing 4-Wire(B-Type) Serial Interface Item Signal Access Time CS Setup Time Clock Low Pulse Width Clock High Pulse Width Data Write Setup Time Data Write Hold Time Data Read Setup Time Data Read Hold Time CS SCK SDI SDO Symbol Rating Condition Unit Min. Max. tCYC4A 3.6 -- tCSH4 20 -- tCKL4 100 -- tCKH4 100 -- tDS4 20 -- tDH4 10 -- tOS4B 20 -- tOH4B 10 -- μs ns 9-3-3 Reset Interface tRST RST Internal State During Reset Reset Complete tRSTH Figure 9-6: Reset Timing RAiO TECHNOLOGY INC. 54/63 www.raio.com.tw RA8815 Preliminary Version 2.2 Item Reset Pulse Width Reset Complete Hold Time RAiO TECHNOLOGY INC. 128x33 Character/Graphic LCD Driver Signal Symbol RST tRST RST tRSTH 55/63 Condition FCL= 55KHz Rating Unit Min. Max. 100 -- ms 150 250 ms www.raio.com.tw RAiO TECHNOLOGY INC. 17 68 GND 69 VDD 70 RA 71 RB 72 DB7, SMOD1 73 DB6, SMOD0 74 DB5 75 DB4 76 DB3, CS 77 DB2, RS, SDI DB1, SDA, SDO 78 79 DB0, SCL 80 RD, EN 81 WR, R/W 82 D/C, RS 83 CS 84 C86 85 BIT4 86 P/S 87 INT 88 EXT_CLK 89 CLK_SEL 90 KST3 91 KST2 92 KST1 93 KST0 94 KIN4 95 KIN3 96 KIN2 97 KIN1 98 KIN0 99 IO7 100 IO6 101 IO5 102 IO4 103 IO3 104 IO2 105 IO1 106 IO0 107 EL_CHRG 108 EL_DCHG 109 RST 110 TEST2 111 TEST1 112 TEST0 113 GND 114 GND 115 VDD 116 VDD 116-1 S0 116-2 FG 116-3 S1 Top View 16 264 263 262 261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 DUM_L SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35 SEG36 SEG37 SEG38 SEG39 SEG40 SEG41 SEG42 SEG43 SEG44 SEG45 SEG46 SEG47 SEG48 SEG49 SEG50 SEG51 SEG52 SEG53 SEG54 SEG55 SEG56 SEG57 SEG58 SEG59 SEG60 SEG61 SEG62 SEG63 SEG64 SEG65 SEG66 SEG67 SEG68 SEG69 SEG70 SEG71 SEG72 SEG73 SEG74 SEG75 SEG76 SEG77 SEG78 SEG79 SEG80 SEG81 SEG82 SEG83 SEG84 SEG85 SEG86 SEG87 SEG88 SEG89 SEG90 SEG91 SEG92 SEG93 SEG94 SEG95 SEG96 SEG97 SEG98 SEG99 SEG100 SEG101 SEG102 SEG103 SEG104 SEG105 SEG106 SEG107 SEG108 SEG109 SEG110 SEG111 SEG112 SEG113 SEG114 SEG115 SEG116 SEG117 SEG118 SEG119 SEG120 SEG121 SEG122 SEG123 SEG124 SEG125 SEG126 SEG127 DUM_R Icon 15 RA8815 14 13 12 11 10 9 8 7 6 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 4 3 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 COMS_A0 COMS_A1 COM0 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 COM9 COM10 COM11 COM12 COM13 COM14 COM15 2 1 VLCD VLCD VLCD VLCD VLCD VLCD C2M C2M C2P C2P C1M C1M C1P C1P GNDP GNDP GND GND GND GND VDD VDD VDD VDDP V0 V0 V0 V0 V1 V1 V1 V1 V2 V2 V2 V2 V3 V3 V3 V3 V4 V4 V4 V4 VREF VREF VREG VREG VREG RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver Appendix A. A-1 COG Application A-1-1 Basic Connection of Serial I/F 128x33 COG RA8815 FPC #N #1 Figure A-1：COG Module Y (0, 0) X 56/63 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 COM16 COM17 COM18 COM19 COM20 COM21 COM22 COM23 COM24 COM25 COM26 COM27 COM28 COM29 COM30 COM31 COMS_B0 COMS_B1 Figure A-1b：Basic Connection of Serial I/F www.raio.com.tw RAiO TECHNOLOGY INC. 57/63 26 264 263 262 261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 DUM_L SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35 SEG36 SEG37 SEG38 SEG39 SEG40 SEG41 SEG42 SEG43 SEG44 SEG45 SEG46 SEG47 SEG48 SEG49 SEG50 SEG51 SEG52 SEG53 SEG54 SEG55 SEG56 SEG57 SEG58 SEG59 SEG60 SEG61 SEG62 SEG63 SEG64 SEG65 SEG66 SEG67 SEG68 SEG69 SEG70 SEG71 SEG72 SEG73 SEG74 SEG75 SEG76 SEG77 SEG78 SEG79 SEG80 SEG81 SEG82 SEG83 SEG84 SEG85 SEG86 SEG87 SEG88 SEG89 SEG90 SEG91 SEG92 SEG93 SEG94 SEG95 SEG96 SEG97 SEG98 SEG99 SEG100 SEG101 SEG102 SEG103 SEG104 SEG105 SEG106 SEG107 SEG108 SEG109 SEG110 SEG111 SEG112 SEG113 SEG114 SEG115 SEG116 SEG117 SEG118 SEG119 SEG120 SEG121 SEG122 SEG123 SEG124 SEG125 SEG126 SEG127 DUM_R Preliminary Version 2.2 25 24 23 22 21 20 19 GND 68 VDD 69 70 RA 71 RB 72 DB7, SMOD1 73 DB6, SMOD0 74 DB5 75 DB4 76 DB3, CS DB2, RS, SDI 77 DB1, SDA, SDO 78 79 DB0, SCL 80 RD, EN 81 WR, R/W 82 D/C, RS 83 CS 84 C86 85 BIT4 P/S 86 INT 87 88 EXT_CLK 89 CLK_SEL 90 KST3 91 KST2 92 KST1 93 KST0 94 KIN4 KIN3 95 KIN2 96 97 KIN1 98 KIN0 99 IO7 100 IO6 101 IO5 102 IO4 103 IO3 104 IO2 IO1 105 IO0 106 107 EL_CHRG 108 EL_DCHG 109 RST 110 TEST2 111 TEST1 112 TEST0 113 GND GND 114 VDD 115 116 VDD 116-1 S0 116-2 FG 116-3 S1 (0, 0) 18 17 16 Top View 15 RA8815 14 13 12 11 10 9 8 7 6 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 4 3 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 COMS_A0 COMS_A1 COM0 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 COM9 COM10 COM11 COM12 COM13 COM14 COM15 2 1 VLCD VLCD VLCD VLCD VLCD VLCD C2M C2M C2P C2P C1M C1M C1P C1P GNDP GNDP GND GND GND GND VDD VDD VDD VDDP V0 V0 V0 V0 V1 V1 V1 V1 V2 V2 V2 V2 V3 V3 V3 V3 V4 V4 V4 V4 VREF VREF VREG VREG VREG RA8815 128x33 Character/Graphic LCD Driver The RA8815 provide many interfaces for MPU that including parallel, 3-Wire serial and 4-Wire serial, and some useful I/O interface like I/O and Key-scan. Therefore there are many options for user to connect the COG die to FPC. The Figure A-1b is the basic connection of serial mode in COG module. If the MPC interface is serial mode, then these signals are necessary for FPC. A-1-2 Basic Connection of Parallel I/F Y X 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 COM16 COM17 COM18 COM19 COM20 COM21 COM22 COM23 COM24 COM25 COM26 COM27 COM28 COM29 COM30 COM31 COMS_B0 COMS_B1 Figure A-1c：Basic Connection of Parallel I/F The figure A-1c is the basic connection of parallel mode in COG module. If the MPC interface is parallel mode, then these signals are necessary for FPC. www.raio.com.tw RAiO TECHNOLOGY INC. 58/63 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 264 263 262 261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 DUM_L SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35 SEG36 SEG37 SEG38 SEG39 SEG40 SEG41 SEG42 SEG43 SEG44 SEG45 SEG46 SEG47 SEG48 SEG49 SEG50 SEG51 SEG52 SEG53 SEG54 SEG55 SEG56 SEG57 SEG58 SEG59 SEG60 SEG61 SEG62 SEG63 SEG64 SEG65 SEG66 SEG67 SEG68 SEG69 SEG70 SEG71 SEG72 SEG73 SEG74 SEG75 SEG76 SEG77 SEG78 SEG79 SEG80 SEG81 SEG82 SEG83 SEG84 SEG85 SEG86 SEG87 SEG88 SEG89 SEG90 SEG91 SEG92 SEG93 SEG94 SEG95 SEG96 SEG97 SEG98 SEG99 SEG100 SEG101 SEG102 SEG103 SEG104 SEG105 SEG106 SEG107 SEG108 SEG109 SEG110 SEG111 SEG112 SEG113 SEG114 SEG115 SEG116 SEG117 SEG118 SEG119 SEG120 SEG121 SEG122 SEG123 SEG124 SEG125 SEG126 SEG127 DUM_R Preliminary Version 2.2 37 36 35 34 33 32 31 68 GND 69 VDD 70 RA 71 RB 72 DB7, SMOD1 73 DB6, SMOD0 74 DB5 75 DB4 76 DB3, CS 77 DB2, RS, SDI DB1, SDA, SDO 78 79 DB0, SCL 80 RD, EN 81 WR, R/W 82 D/C, RS 83 CS 84 C86 85 BIT4 86 P/S 87 INT 88 EXT_CLK 89 CLK_SEL 90 KST3 91 KST2 92 KST1 93 KST0 94 KIN4 95 KIN3 96 KIN2 97 KIN1 98 KIN0 99 IO7 100 IO6 101 IO5 102 IO4 103 IO3 104 IO2 105 IO1 106 IO0 107 EL_CHRG 108 EL_DCHG 109 RST 110 TEST2 111 TEST1 112 TEST0 113 GND 114 GND 115 VDD 116 VDD 116-1 S0 116-2 FG 116-3 S1 (0, 0) 30 29 28 Top View 27 RA8815 26 25 24 23 22 21 20 19 18 17 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 16 15 14 13 12 11 10 9 8 7 6 5 4 3 VLCD VLCD VLCD VLCD VLCD VLCD C2M C2M C2P C2P C1M C1M C1P C1P GNDP GNDP GND GND GND GND VDD VDD VDD VDDP V0 V0 V0 V0 V1 V1 V1 V1 V2 V2 V2 V2 V3 V3 V3 V3 V4 V4 V4 V4 VREF VREF VREG VREG VREG COMS_A0 COMS_A1 COM0 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 COM9 COM10 COM11 COM12 COM13 COM14 COM15 2 1 RA8815 128x33 Character/Graphic LCD Driver A-1-3 FPC Connection for Other Functions Y X 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 COM16 COM17 COM18 COM19 COM20 COM21 COM22 COM23 COM24 COM25 COM26 COM27 COM28 COM29 COM30 COM31 COMS_B COMS_B Figure A-2：Example(A) of FPC Connection As previous mention, the RA8815 provides many interfaces for MPU that including parallel, 3-Wire serial and 4-Wire serial, and some useful I/O interface like I/O and Key-scan. The Figure A-2 is an example for RA8815 COG die that connect all of the signals to FPC. The RA8815 also provides two common outputs for Icon that let the panel layout easier to meet their application. The Figure A-3 is a simple example that use serial 3-Wires, 2 times VDD, internal RC oscillator and interrupt signal. Therefore only 18pins used. But in this case, some signals(P/ S 、CLK_SEL、EXT_CLK) have to connect to VDD or GND directly through ITO resistance. If the system wants to use another features such as Key-scan, then the user have to connect the KIN[4:0] and KST[3:0] to FPC. The pad number 68, 69, 113, 114, 115, 116 are VDD or GND. Their purposes are used to pull-up or pulldown for some signals on panel. They do not need to connect to FPC. www.raio.com.tw RAiO TECHNOLOGY INC. 59/63 18 17 16 15 68 GND 69 VDD 70 RA 71 RB 72 DB7, SMOD1 73 DB6, SMOD0 74 DB5 75 DB4 76 DB3, CS 77 DB2, RS, SDI DB1, SDA, SDO 78 79 DB0, SCL 80 RD, EN 81 WR, R/W 82 D/C, RS 83 CS 84 C86 85 BIT4 86 P/S 87 INT 88 EXT_CLK 89 CLK_SEL 90 KST3 91 KST2 92 KST1 93 KST0 94 KIN4 95 KIN3 96 KIN2 97 KIN1 98 KIN0 99 IO7 100 IO6 101 IO5 102 IO4 103 IO3 104 IO2 105 IO1 106 IO0 107 EL_CHRG 108 EL_DCHG 109 RST 110 TEST2 111 TEST1 112 TEST0 113 GND 114 GND 115 VDD 116 VDD 116-1 S0 116-2 FG 116-3 S1 (0, 0) 14 13 12 Top View 11 RA8815 10 9 8 7 6 5 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 3 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 COMS_A0 COMS_A1 COM0 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 COM9 COM10 COM11 COM12 COM13 COM14 COM15 2 1 VLCD VLCD VLCD VLCD VLCD VLCD C2M C2M C2P C2P C1M C1M C1P C1P GNDP GNDP GND GND GND GND VDD VDD VDD VDDP V0 V0 V0 V0 V1 V1 V1 V1 V2 V2 V2 V2 V3 V3 V3 V3 V4 V4 V4 V4 VREF VREF VREG VREG VREG 264 263 262 261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 DUM_L SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35 SEG36 SEG37 SEG38 SEG39 SEG40 SEG41 SEG42 SEG43 SEG44 SEG45 SEG46 SEG47 SEG48 SEG49 SEG50 SEG51 SEG52 SEG53 SEG54 SEG55 SEG56 SEG57 SEG58 SEG59 SEG60 SEG61 SEG62 SEG63 SEG64 SEG65 SEG66 SEG67 SEG68 SEG69 SEG70 SEG71 SEG72 SEG73 SEG74 SEG75 SEG76 SEG77 SEG78 SEG79 SEG80 SEG81 SEG82 SEG83 SEG84 SEG85 SEG86 SEG87 SEG88 SEG89 SEG90 SEG91 SEG92 SEG93 SEG94 SEG95 SEG96 SEG97 SEG98 SEG99 SEG100 SEG101 SEG102 SEG103 SEG104 SEG105 SEG106 SEG107 SEG108 SEG109 SEG110 SEG111 SEG112 SEG113 SEG114 SEG115 SEG116 SEG117 SEG118 SEG119 SEG120 SEG121 SEG122 SEG123 SEG124 SEG125 SEG126 SEG127 DUM_R RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver Y X 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 COM16 COM17 COM18 COM19 COM20 COM21 COM22 COM23 COM24 COM25 COM26 COM27 COM28 COM29 COM30 COM31 COMS_B0 COMS_B1 Figure A-3：Example(B) of COG Module The Figure A-4 is another example that uses 8080/8bit MPU, 2-times VDD, internal RC Oscillator, EL driver and interrupt signal. In this case, the FPC only uses 29pins. Some configure pin are connect to VDD or GND through ITO resistance, such as C86, BIT4, P/ S , CLK_SEL and EXT_CLK. www.raio.com.tw RAiO TECHNOLOGY INC. 60/63 29 28 27 26 264 263 262 261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 DUM_L SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35 SEG36 SEG37 SEG38 SEG39 SEG40 SEG41 SEG42 SEG43 SEG44 SEG45 SEG46 SEG47 SEG48 SEG49 SEG50 SEG51 SEG52 SEG53 SEG54 SEG55 SEG56 SEG57 SEG58 SEG59 SEG60 SEG61 SEG62 SEG63 SEG64 SEG65 SEG66 SEG67 SEG68 SEG69 SEG70 SEG71 SEG72 SEG73 SEG74 SEG75 SEG76 SEG77 SEG78 SEG79 SEG80 SEG81 SEG82 SEG83 SEG84 SEG85 SEG86 SEG87 SEG88 SEG89 SEG90 SEG91 SEG92 SEG93 SEG94 SEG95 SEG96 SEG97 SEG98 SEG99 SEG100 SEG101 SEG102 SEG103 SEG104 SEG105 SEG106 SEG107 SEG108 SEG109 SEG110 SEG111 SEG112 SEG113 SEG114 SEG115 SEG116 SEG117 SEG118 SEG119 SEG120 SEG121 SEG122 SEG123 SEG124 SEG125 SEG126 SEG127 DUM_R Preliminary Version 2.2 25 24 23 22 21 20 19 68 GND 69 VDD 70 RA 71 RB 72 DB7, SMOD1 73 DB6, SMOD0 74 DB5 75 DB4 76 DB3, CS 77 DB2, RS, SDI DB1, SDA, SDO 78 79 DB0, SCL 80 RD, EN 81 WR, R/W 82 D/C, RS 83 CS 84 C86 85 BIT4 86 P/S 87 INT 88 EXT_CLK 89 CLK_SEL 90 KST3 91 KST2 92 KST1 93 KST0 94 KIN4 95 KIN3 96 KIN2 97 KIN1 98 KIN0 99 IO7 100 IO6 101 IO5 102 IO4 103 IO3 104 IO2 105 IO1 106 IO0 107 EL_CHRG 108 EL_DCHG 109 RST 110 TEST2 111 TEST1 112 TEST0 113 GND 114 GND 115 VDD 116 VDD 116-1 S0 116-2 FG 116-3 S1 (0, 0) 18 17 16 Top View 15 RA8815 14 13 12 11 10 9 8 7 6 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 4 3 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 COMS_A0 COMS_A1 COM0 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 COM9 COM10 COM11 COM12 COM13 COM14 COM15 2 1 VLCD VLCD VLCD VLCD VLCD VLCD C2M C2M C2P C2P C1M C1M C1P C1P GNDP GNDP GND GND GND GND VDD VDD VDD VDDP V0 V0 V0 V0 V1 V1 V1 V1 V2 V2 V2 V2 V3 V3 V3 V3 V4 V4 V4 V4 VREF VREF VREG VREG VREG RA8815 128x33 Character/Graphic LCD Driver Y X 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 COM16 COM17 COM18 COM19 COM20 COM21 COM22 COM23 COM24 COM25 COM26 COM27 COM28 COM29 COM30 COM31 COMS_B0 COMS_B1 Figure A-4：Example(C) of COG Module The Figure A-5 is an example for RA8815 to connect the driver signals(COM/SEG) to LCD panel. In this case, the panel size is 128x32. If the Common of panel is less than 32, then care for the selection of Common. Because RA8815 supports text mode, so the user cannot separate the common willfully and connect them to panel. Please note the COG is reverse and stamp on the glass, so the point of COM0/SEG0 is on the right-bottom corner. Refer to Figure A-5. www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver 128 x 32 Icon COM31 : : : : : COM16 COM15 : : : : : : COM0 SEG127 ……………………………………………………………… SEG0 ..…………………. COM16 : COM31 : COM0 RA8815 : : (Back View) COM15 COMS Figure A-5: The Connection of RA8815 with LCD Panel(128x32) 96 X 24 COM23 : : : COM16 COM15 : : : : : : COM0 SEG95 ……………………………………………………………… SEG0 ……………. COM16 : COM23 RA8815 (Back View) COM0 : : COM15 Figure A-6: The Connection of RA8815 with LCD Panel(96x24) The Figure A-6 is an example of connection that use 96x24 panel. In this case, it supports one row for full size(16x16) and half-size(8x8) font. Or three rows for half-size(8x8) fonts. If the application of user is on graphics mode, then separate the common signal for same number and each size is 13 common signals. RAiO TECHNOLOGY INC. 61/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver A-2 ITO Table A-1: ITO Resistance of COG PAD Name ITO(Ohm) PAD Name ITO(Ohm) PAD Name ITO(Ohm) VDD , VDDP 150 C2P 200 P/ S 600 GND , GNDP 150 C2M 200 CLK_SEL 600 VREF 200 RA 200 EXT_CLK 600 VLCD 200 RB 200 KST[3..0] 600 VREG 200 DB[7:0] 600 KIN[4..0] 600 V4 200 RD , EN 600 IO[7:0] 600 V3 200 WR , R/ W 600 EL_CHRG 600 V2 200 D/ C , RS 600 EL_DCHG 600 V1 200 CS 600 RST 600 V0 200 INT 600 TEST[2..0] 600 C1P 200 C86 600 C1M 200 BIT4 600 ITO Layout C1P C1P C2P C1M C1M C2M C2P VLCD VLCD C2M VLCD VLCD VLCD VLCD Chip PAD FPC PAD Figure A-7：ITO Layout Example - VLCD(2*VDD) The RA8815 power signals (such as VDD, GND, VLCD, V[4:0], C1P, C1M) have to keep the smaller ITO resistance for panel layout. So the wires of layout need to keep as thick as possible to reduce the ITO resistance. The Figure A-7 is an example for VLCD layout of panel. Because the RA8815 provide six pads for VLCD, therefore the layout engineer has to connect all of these pads to FPC. In this case, the VLCD is two times of VDD, so the C2P have to connect to VLCD and do not forget keep the wire thicker. The Figure A-8 is a layout example of RA8815 to FPC on COG module. The VDD and GND of RA8815 should as close as possible to FPC. The RA8815 provide six GND pad, user have to connect these six RAiO TECHNOLOGY INC. 62/63 www.raio.com.tw RA8815 Preliminary Version 2.2 128x33 Character/Graphic LCD Driver C1M C1M C1P C1P GNDP GNDP GND GND GND GND VDD VDD VDD VDDP V0 V0 V0 V0 V1 V1 V1 V1 V2 V2 V2 V2 V3 V3 V3 V3 V4 V4 V4 V4 VLCD VLCD VLCD VLCD VLCD VLCD C2M C2M C2P C2P pad to FPC with a thick wire. For the design of FPC, the related power signals(VDD, GND, VLCD) of layout need to keep as thick as possible to reduce the wire resistance. And the VDD, GND pad of FPC keep double width than other signals. Chip Pad ITO Layout FPC Pad Figure A-8：ITO Layout Example RAiO TECHNOLOGY INC. 63/63 www.raio.com.tw