Each chipset hosts up to 8 cores, equipped with a 256 KB primary cache
, as well as a secondary cache of up to 24 MB, an I/O processor, a memory controller, and a system controller.
The system leaves a copy of frequently accessed data in primary cache
for very fast retrieval.
Primary controller transfers the data into the primary cache
They find the average memory access time to the primary cache
alone to go up from 1.
In addition, the SH-MobileR2's 64Kbyte primary cache
memory (32Kbytes each for instructions and data) is supplemented by a new 256Kbyte secondary cache memory (mixed instructions and data) that contributes to faster software execution.
An on-chip 64 KB primary cache
(32 KB instruction, 32 KB data) offers faster access to frequently used operations and data.
Internet content is being multicast from a primary cache
at the warehouse through Teleglobe's Des Laurentides earth station to multiple ISP kiosk sites around the world over the INTELSAT 603 satellite at 335.
The Internet content will be multicast from a primary cache
at the warehouse through one of Teleglobe's INTELSAT earth stations to kiosk sites in the UK, the US, Brazil, France, Cyprus, Egypt, the Netherlands, Canada and Sweden.
Level One (L1), or primary cache
, and the main memory, which is most
L2 cache, or secondary cache, is high speed memory placed between the Level One (L1), or primary cache
, and the main memory, which is most often composed of DRAM components.
Key Features of TX49 Core -- Optimized 5-stage pipeline -- Upward-compatible Instruction Set -- MIPS I, II and III Instruction Set Architecture (ISA) -- Multiply and Add Instruction -- Pre-fetch Instruction -- Built-in, high-capacity primary cache
memory -- Instruction cache 8k/16k/32kbyte (selectable) 4 way set associative/Lock function -- Data cache 8k/16k/32kbyte (selectable) 4-way set associative/Lock function -- Single or double-precision floating-point unit (option) -- 48 built-in double-entry joint-Translation Look-aside Buffers(TLB) -- Low power consumption modes/halt and doze modes -- Power supply: 3.
To speed data flow, the processor supports large register files and features a large on-chip primary cache
with 32 kilobytes for instructions and 32 kilobytes for data.