參數(shù)資料
型號(hào)： MB91V301CR-ESE1
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 68 MHz, RISC MICROCONTROLLER, CPGA179
封裝： CERAMIC, PGA-179
文件頁數(shù)： 93/139頁
文件大?。?/td> 1482K
代理商： MB91V301CR-ESE1
MB91301 Series
57
s
s INSTRUCTION CACHE
The instruction cache is a fast local memory for temporary storage. Once an instruction code is accessed from
external slower memory, the instruction cache holds the instruction code inside to increase the speed of access-
ing the same code from then on.
By setting the RAM mode, the instruction cache data RAM is made directly read/write-accessible by software.
Configuration
FR family’s basic instruction length : Two bytes
Block layout : Two-way set associative
Blocks : 128 blocks per way
16 bytes per block (
= 4 sub-blocks)
4 bytes per sub-block (
= 1 bus access unit)
Instruction Cache Configuration
4 bytes
I3
I2
I1
I0
Way 1
Way 2
128 block
128
block
Cash tag
Sub
block 3
Sub
block 3
Sub
block 2
Sub
block 1
Sub
block 0
Sub
block 3
Sub
block 2
Sub
block 1
Sub
block 0
Sub
block 3
Sub
block 2
Sub
block 1
Sub
block 0
block 127
Sub
block 2
Sub
block 1
Sub
block 0
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