lc7874e Sanyo Semiconductor Corporation, lc7874e Datasheet
lc7874e
Related parts for lc7874e
lc7874e Summary of contents
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... Ordering number : EN5521 Overview The LC7874E is a CMOS LSI that provides the signal processing needed for compact disc graphics (CD- single chip. The LC7874E accepts subcode signals output from a CD player DSP LC786X Series, LC7862XE Series, or LC7863XE Series device, and performs de-interleaving, error detection and correction, graphic instruction processing, and image processing ...
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... Input amplitude Electrical Characteristics –30 to +85°C, V Parameter Input high-level current Input low-level current Output high-level voltage Output low-level voltage Output off leakage current Built-in feedback resistance Clock frequency Operating current drain LC7874E Symbol Conditions S1, S2, CB LINE, N/P, SON IH ...
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... Timing Characteristics (Microcontroller Interface Timing 25°C, V Parameter Input minimum pulse width Data setup time Data hold time Data hold time CE wait time CE setup time CE hold time LC7874E Symbol Conditions t CL, high pulse width WH t CL, low pulse width DI, CL ...
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... Write command hold time Write command pulse width Write data setup time Write data hold time CAS setup time CAS hold time RAS precharge CAS active time Read data setup time Read data hold time Refresh time LC7874E = Symbol Conditions ...
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... DRAM Read Cycle LC7874E No. 5521-5/22 ...
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... DRAM Early Write Cycle LC7874E No. 5521-6/22 ...
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... DRAM Page Mode Read Cycle LC7874E No. 5521-7/22 ...
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... DRAM Page Mode Write Cycle DRAM CAS-Before-RAS Refresh Cycle LC7874E No. 5521-8/22 ...
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... Pin Assignment LC7874E No. 5521-9/22 ...
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... DRAM output pin 29 DB0 DRAM input/output pin 30 DB1 DRAM input/output pin 31 DB2 DRAM input/output pin 32 DB3 DRAM input/output pin 33 BLANK Blank signal output pin 34 CSYNC Composite sync output pin LC7874E I/O Polarity Function S1 S2 Selected CD DSP 0 0 LC7861N/ LC7860K/63 In Positive 0 1 Setting prohibited 1 ...
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... NTSC/PAL selection input pin 60 SON Superimposition control pin 61 XIN2 Crystal oscillator connection pins 62 XOUT2 63 XIN1 Crystal oscillator connection pins 64 XOUT1 LC7874E I/O Polarity Function 3ST Negative Horizontal sync signal output I/O Positive Video signal R3 data output I/O Positive Video signal R2 data output I/O Positive Video signal R1 data output ...
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... Block Diagram LC7874E No. 5521-12/22 ...
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... CD-G Instructions The contents of instructions in the CD Red Book which are supported by the LC7874E are as follows. ZERO mode (MODE = 0, ITEM = 0) LINE GRAPHICS mode (MODE = 1, ITEM = 0) INSTRUCTION (4): Write FONT INSTRUCTION (12): Write Scroll SCREEN TV GRAPHICS mode (MODE = 1, ITEM = 1) INSTRUCTION (1): Preset MEMORY INSTRUCTION (2): Preset BORDER INSTRUCTION (6): Write FONT FOREGROUND/BACKGROUND ...
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... MPEG DRAM sharing is possible graphic monitor pin: CDGM CDGM goes high once the LC7874E accepts any CD-G instruction. In the power-on state, once CDGM goes high it remains high. It can be driven low by driving the INIT pin low or transferring an INIT command from the microcontroller ...
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... Display format 6. Video output: ROUT0 to ROUT3, GOUT0 to GOUT3, BOUT0 to BOUT3 7. Error flag output: EFLG Error detection results can be monitored with the EFLG pin. LC7874E No. 5521-15/22 ...
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... MHz 2. Display functions • Display resolution 288 dots 192H • Image data area 300 dots 216H • 16-color display Selection of 16 colors from 4096 Microcontroller Interface (CCB) 1. Transfer format (for command transfer) Transfer format (example) LC7874E White Gray B B ...
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... B setting) Register 80HEX (YS output phase adjustment) Register 90HEX (External synchronization mode, test mode) Register A0HEX (Subtitle scroll: vertical) Register B0HEX (Subtitle scroll: horizontal) Register 01HEX (19-byte command input) LC7874E First byte MSB MSB Command identification code LSB ...
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... Data 2: HP2 (variable by –16 to +14 dots from center in 2-dot units) Data 3: HP3 Data 4: VP0 Vertical fine adjustment of screen position Data 5: VP1 Specified as two’s complement with up as positive direction Data 6: VP2 (variable by –16 to +14 dots from center in 2-dot units) Data 7: VP3 LC7874E Compare condition No. 5521-18/22 ...
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... Control item code 60 : Chroma key color (R, G) settings HEX Default: MSB [00000000] LSB Data 0: CKR0 Chroma key color: R setting = 16 kinds Data 1: CKR1 Data 2: CKR2 Data 3: CKR3 Data 4: CKG0 Chroma key color: G setting = 16 kinds Data 5: CKG1 Data 6: CKG2 Data 7: CKG3 LC7874E No. 5521-19/22 ...
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... Data 0: SCV0 Upward scroll amount (font unit) setting (scroll amount font units) Data 1: SCV1 Screen display position scrolled vertically by 1 font unit Data 2: SCV2 (1 font unit: 12 vertical dots (12H)) Data 3: SCV3 Data 4: SCV4 Data 5 to data 7: Fixed at 0 LC7874E No. 5521-20/22 ...
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... Note: Reading must be completed within 1.1 ms after OE output setting. Data 1: EXEC Command status 0: Command executing 1: Command wait state Data 2: VBLK 1 output during vertical blanking (vertical retrace line) period Vertical retrace line period Data 3: DKMD Disk identification flag CD-G LC7874E NTSC: 19H PAL: 25H No. 5521-21/22 ...
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... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of January, 1997. Specifications and information herein are subject to change without notice. LC7874E No. 5521-22/22 ...