CS98000-CQ Cirrus Logic, Inc., CS98000-CQ Datasheet - Page 10

• Manufacturer Part Number: CS98000-CQ
• Description: Internet DVD (iDVD) Chip Solution
• Manufacturer: Cirrus Logic, Inc.

3. FUNCTIONAL DESCRIPTION
3.1
The CS98000 block is shown in Figure 8.
3.2
3.2.1
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10
Powerful 32-bit RISC processor
Virtual memory support
Optimizing C compiler and source level debug-
ger
Big or little endian data formats support
MAC multiply/accumulate in 2 cycles with C
support.
4 Kbyte instruction cache, 2 Kbyte data cache.
Single cycle instructions, runs at 81 Mhz.
Block Diagram
CS98000 Device Details
RISC-32
VLC Parser
Instruction
ATAPI / LBUS Interface
Cache
MMU
RAM
STC
External Interface
Programmable I/O
MPEG Decoder
Serial Interface
System Sync
Infrared Input
RISC-1
DVD
Interrupts
Motion
Cache
Figure 8. CS98000 Block Diagram
Comp
IDCT
MAC
Data
Memory Controller
System Controls
Dataflow Engine
SDRAM Control
Instruction
FLASH Control
SRAM Buffer
DMA / BitBlit
Cache
MMU
Registers
PLL
3.2.2
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3.2.3
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RISC-2
Powerful 24/32 bit DSP processor
24 bit fixed point logic, with 54 bit accumula-
tor.
Single-cycle throughput, 2 cycle latency multi-
ply accumulate, 32 bit simple integer logic.
8 Kbyte instruction cache, 8 Kbyte program
visible local memory
Single cycle instructions, runs at 81 Mhz.
Include several hardware lockable semaphore
registers
General-purpose register for inter-processor
communication
32-bit timers for I/O and other uses, with pro-
grammable interval rates
Cache
MAC
Data
DSP-32
System Controls
Instruction
Video / Graphics Display
Decoder
Cache
Subpicture Decoder
Filter
On-Screen Display
Video Processor
Picture-in-Picture
Video Input
CPU / MAC
Audio Interface
DSP
SPDIF Out
PCM Out
PCM In
X,Y Data
Memory
Scaler
Scaler
CS98000
DS525PP1