lc897127k Sanyo Semiconductor Corporation, lc897127k Datasheet - Page 4

• Manufacturer Part Number: lc897127k
• Description: Scsi Cd-rom Decoder With On-chip Dvd Interface
• Manufacturer: Sanyo Semiconductor Corporation

Block Diagram
*1. WFCK, SBSO, SCOR
*2. BCK, SDATA, LRCK, C2PO
*3. DB0 to DB7, DBP, BSY, MSG, SEL, RST, REQ, I/O, C/D
*4. ACK, ATN
*5. RD, WR, SUA0 to SUA6, CS, CSCTRL
*6. D0 to D7
*7. IO0 to IO15 (Data bus for both ATAPI and DMA interfaces)
*8. RA0 to RA10, RAS1, RAS0, OE, UWE, LWE
*9. DBCK, DLRCK, DSDATA
*10. HDB7 to HDB0, DRESP, DREQ
ATAPI interface: SBSO (DMARQ), DBCK (DMACK), DLRCK (DIOR), DSDATA (DIOW)
DMA interface: EXCK (DMARQ), C2PO (DMACK), SDATA (DIOR), BCK (DIOW)
See the circuit examples for details on ATAPI and DMA interface IC
connection.
DVD DSP
controller
CD-DSP
HOST
Micro
XTALCK
XTAL
SWAIT
INT0, 1
EXCK
*10
*1
*2
*3
*4
*5
*6
MCK
CD-DSP I/F
generator
decoder
& SYNC
Detector
Clock
PLL
&
Each Block
Each Block
Register
Data bus[0:7]
Data output input I/F
Address generator
Address generator
Address generator
Address generator
Address generator
CAV-Audio control
Address generator
Address generator
LC897127K
De-scramble &
Microcontroller
DVD DSP I/F
Sub-code I/F
RAM access
ECC & EDC
de-interleve
Buffering
SCSI I/F
Block
RAM
Data bus[0:15]
Address bus[0:21]
LC897127K
controller
controller
Arbiter
RAM
Bus
IF
&
&
Each Block
Bus control
signal
*7
*8
*9
DRAM
ATAPI
I/F IC
I/F IC
DMA
DAC
or
or
A12551
No. 6251-4/14