PDF LC822152 Data sheet ( Hoja de datos )

Número de pieza	LC822152
Descripción	CMOS IC CCD-LCD Interface ASIC
Fabricantes	Sanyo Semicon Device
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No Preview Available ! www.DataSheet4U.com Ordering number : ENN*8075 LC822152 CMOS IC CCD-LCD Interface ASIC Overview LC822152 is a chip which compresses and expands the image inputted from the CCD/CMOS by JPEG format, interfacing the LCD controller equipped with built-in CCD/CMOS sensor module and display memory for DSC- PHONEs. Since the I2C master device circuit is embedded in the chip and the signal required for the CCD/CMOS module is supplied from this chip, regarding the CPU, it is not necessary to concern the interface with the CCD/CMOS module. In addition, the zooming function using the H/V scaling circuit allows an effective LCD display. The functions comprises the following blocks : • Image-processing unit where the 8-bit video image data in YUV422 (211) format from CCD/CMOS is scaling processed, performed scaling down and cropping (to cut the four sides) to any size, converted to the RGB565 format and then sent to the LCD controller. • JPEG processing unit where the YUV422 (211) image data (VGA size) input from CCD/CMOS or the image data which has been processed by scaling or cropping is compressed to the JPEG format, and the sign data is output. Or JPEG processing unit where the sign data input from the host is processed with JPEG decryption and sent to the image processing unit. • Thumbnail image processing unit where the image data output to the LCD controller is thinned out and reduced to a maximum 40×40 sized image. • Host control unit where CPU interface, register control, LCD bus switching, JPEG code data transfer, and thumbnail image data transfer are performed. • I2C interface unit for the CCD/CMOS module access. • LCD controller interface processing unit allows the RGB666 output (260,000 colors) supporting the 18-bit parallel and various split transfer. Features • CCD/CMOS Interface • CPU Interface • LCD Interface YUV422 (8-bit) format. Maximum VGA size : 640×480. MCKI : System clock supplied to the CCD/CMOS module. PCLK : Dot clock output from the CCD/CMOS module. 80-system 16-bit bus (D15-D0, WR, RD, A2-0, CS) Accessible to the JPEG controller, control register including I2C master, JPEG code buffer, thumbnail image buffer, OSD display buffer, and LCD command buffer. Connects the chip to the LCD controller system bus with the 80-system 16-bit bus interface. It is accessible by switching automatically the two masters, host CPU or LSI image- processing unit. Output image from LSI is RGB565 (16-bit) or RGB666 (18-bit, 9-bit×2, etc.). Maximum display size is 320×240 (without OSD) or 320×200 (with OSD). Camera image display to the sub LCD is possible. Continued on next page. DataSheet4 U .com 91004 JO IM No.8075-1/11 1 page www.DataSheet4U.com Continued from preceding page. No. Pin Number Pin Names 31 H4 CD5 32 J4 CD4 33 K5 CD3 34 G5 CD2 35 H5 CD1 36 J5 CD0 37 J6 38 H6 39 G6 40 K6 VDD1.8 VSS VDD3 EX1 41 J7 EX0 42 H7 LCS2 43 K7 LA 44 J8 LCS 45 H8 LWR 46 K8 LRD 47 K9 48 K10 49 J10 50 J9 VDD1.8 VSS VDD3 LD15 51 H10 LD14 52 G7 LD13 53 H9 LD12 54 G10 LD11 55 G8 LD10 56 G9 LD9 57 F10 LD8 58 F7 LD7 59 F8 LD6 60 F9 LD5 61 E9 62 E8 63 E7 64 E10 VDD3 VSS VDD1.8 LD4 65 D9 LD3 66 D8 LD2 67 D10 LD1 68 C9 LD0 69 C8 CS 70 C10 CS2 71 B10 A1 72 A10 73 A9 74 B9 VSS VDD3 A0 75 A8 WR 76 D7 RD 77 B8 INT 78 A7 D15 79 C7 D14 80 B7 D13 81 A6 D12 82 D6 D11 83 C6 D10 LC822152 I/O Pin Description I CCD data input I CCD data input I CCD data input I CCD data input I CCD data input I CCD data input 1.8V power source GND 3V power source B Expanded LCD data bus B Expanded LCD data bus O Chip select output for sub LCD O LCD address output O LCD chip select output O LCD write signal output O LCD read signal output 1.8V power source GND 3V power source B LCD data bus B LCD data bus B LCD data bus B LCD data bus B LCD data bus B LCD data bus B LCD data bus B LCD data bus B LCD data bus B LCD data bus B LCD data bus 3V power source GND 1.8V power source B LCD data bus B LCD data bus B LCD data bus B LCD data bus B LCD data bus I Chip select input I Chip select input for sub LCD I Address input GND 3V power source I Address input I Write signal input I Read signal input O Interrupt output B Host data bus B Host data bus B Host data bus B Host data bus B Host data bus B Host data bus DataSheet4 U .com Initial Value PD PD PD PD PD PD 1 - 1 1 1 - - - - - - - - - - - - - - - - H H - - H H 1 - - - - - - Continued on next page. No.8075-5/11 5 Page www.DataSheet4U.com LC822152 DataSheet4 U .com PS No.8075-11/11 11 Page

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